* [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs
@ 2013-07-01 3:14 Ian Kent
2013-07-01 3:14 ` [RFC PATCH 1/7] autofs4 - coding style fixes Ian Kent
` (6 more replies)
0 siblings, 7 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
The autofs4 kernel module provides function for autofs version 3, 4 and
5 and autofs module has long since been removed. Now we're left with a
misnamed module. Appart from the name another problem this presents is
that module autoload doesn't work because of the mismatch of the directory
name and the name of the file system provided by the module.
So autofs4 should be renamed to autofs but I've held back doing it because
of the potential disruption that could occur with a change like this.
The issues are somewhat reduced now because systemd needs the autofs
module at startup and because of the autoload issue it is easier to just
compile the module into the kernel which is what is done in some cases.
The big question for me is whether to leave a build stub in the autofs4
directory along with a warning in Kconfig that the stub will be removed
after two kernel versions or just straight out rename it and be done
with it.
The series here leaves a stub but I'd like comments thoughts on whether
to use the stub or just rename the module?
---
Ian Kent (7):
autofs4 - coding style fixes
autofs4 - fix string.h include in auto_dev-ioctl.h
autofs4 - move linux/auto_dev-ioctl.h to uapi/linux
autofs - merge auto_fs.h and auto_fs4.h
autofs - use autofs instead of autofs4 everywhere
autofs - rename module autofs4 to autofs
autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS
MAINTAINERS | 4
arch/arm/configs/at91rm9200_defconfig | 2
arch/arm/configs/bcm_defconfig | 2
arch/arm/configs/cns3420vb_defconfig | 2
arch/arm/configs/colibri_pxa270_defconfig | 2
arch/arm/configs/da8xx_omapl_defconfig | 2
arch/arm/configs/davinci_all_defconfig | 2
arch/arm/configs/ebsa110_defconfig | 2
arch/arm/configs/ezx_defconfig | 2
arch/arm/configs/footbridge_defconfig | 2
arch/arm/configs/imote2_defconfig | 2
arch/arm/configs/imx_v6_v7_defconfig | 2
arch/arm/configs/lpc32xx_defconfig | 2
arch/arm/configs/mini2440_defconfig | 2
arch/arm/configs/omap1_defconfig | 2
arch/arm/configs/rpc_defconfig | 2
arch/arm/configs/s3c2410_defconfig | 2
arch/arm/configs/spear13xx_defconfig | 2
arch/arm/configs/spear3xx_defconfig | 2
arch/arm/configs/spear6xx_defconfig | 2
arch/arm/configs/trizeps4_defconfig | 2
arch/ia64/configs/bigsur_defconfig | 2
arch/ia64/configs/generic_defconfig | 2
arch/ia64/configs/gensparse_defconfig | 2
arch/ia64/configs/tiger_defconfig | 2
arch/ia64/configs/xen_domu_defconfig | 2
arch/m68k/configs/amiga_defconfig | 2
arch/m68k/configs/apollo_defconfig | 2
arch/m68k/configs/atari_defconfig | 2
arch/m68k/configs/bvme6000_defconfig | 2
arch/m68k/configs/hp300_defconfig | 2
arch/m68k/configs/mac_defconfig | 2
arch/m68k/configs/multi_defconfig | 2
arch/m68k/configs/mvme147_defconfig | 2
arch/m68k/configs/mvme16x_defconfig | 2
arch/m68k/configs/q40_defconfig | 2
arch/m68k/configs/sun3_defconfig | 2
arch/m68k/configs/sun3x_defconfig | 2
arch/mips/configs/bcm47xx_defconfig | 2
arch/mips/configs/bigsur_defconfig | 2
arch/mips/configs/capcella_defconfig | 2
arch/mips/configs/e55_defconfig | 2
arch/mips/configs/fuloong2e_defconfig | 2
arch/mips/configs/ip22_defconfig | 2
arch/mips/configs/ip32_defconfig | 2
arch/mips/configs/jazz_defconfig | 2
arch/mips/configs/lemote2f_defconfig | 2
arch/mips/configs/markeins_defconfig | 2
arch/mips/configs/mpc30x_defconfig | 2
arch/mips/configs/mtx1_defconfig | 2
arch/mips/configs/nlm_xlp_defconfig | 2
arch/mips/configs/nlm_xlr_defconfig | 2
arch/mips/configs/rm200_defconfig | 2
arch/mips/configs/tb0219_defconfig | 2
arch/mips/configs/tb0226_defconfig | 2
arch/mips/configs/tb0287_defconfig | 2
arch/mips/configs/workpad_defconfig | 2
arch/parisc/configs/712_defconfig | 2
arch/parisc/configs/a500_defconfig | 2
arch/parisc/configs/b180_defconfig | 2
arch/parisc/configs/c3000_defconfig | 2
arch/powerpc/configs/40x/virtex_defconfig | 2
arch/powerpc/configs/44x/sam440ep_defconfig | 2
arch/powerpc/configs/44x/virtex5_defconfig | 2
arch/powerpc/configs/85xx/stx_gp3_defconfig | 2
arch/powerpc/configs/86xx/sbc8641d_defconfig | 2
arch/powerpc/configs/c2k_defconfig | 2
arch/powerpc/configs/cell_defconfig | 2
arch/powerpc/configs/ep8248e_defconfig | 2
arch/powerpc/configs/mgcoge_defconfig | 2
arch/powerpc/configs/mpc8272_ads_defconfig | 2
arch/powerpc/configs/pasemi_defconfig | 2
arch/powerpc/configs/pmac32_defconfig | 2
arch/powerpc/configs/ppc64_defconfig | 2
arch/powerpc/configs/ppc64e_defconfig | 2
arch/powerpc/configs/ppc6xx_defconfig | 2
arch/powerpc/configs/pq2fads_defconfig | 2
arch/powerpc/configs/ps3_defconfig | 2
arch/powerpc/configs/pseries_defconfig | 2
arch/score/configs/spct6600_defconfig | 2
arch/sh/configs/espt_defconfig | 2
arch/sh/configs/sdk7780_defconfig | 2
arch/sh/configs/sdk7786_defconfig | 2
arch/sh/configs/sh03_defconfig | 2
arch/sh/configs/sh7763rdp_defconfig | 2
arch/sparc/configs/sparc32_defconfig | 2
arch/tile/configs/tilegx_defconfig | 2
arch/tile/configs/tilepro_defconfig | 2
arch/um/defconfig | 2
arch/x86/configs/i386_defconfig | 2
arch/x86/configs/x86_64_defconfig | 2
arch/xtensa/configs/common_defconfig | 1
arch/xtensa/configs/iss_defconfig | 1
arch/xtensa/configs/s6105_defconfig | 1
fs/Kconfig | 1
fs/Makefile | 1
fs/autofs/Kconfig | 19 +
fs/autofs/Makefile | 7
fs/autofs/autofs_i.h | 341 ++++++++++
fs/autofs/dev-ioctl.c | 759 ++++++++++++++++++++++
fs/autofs/expire.c | 561 ++++++++++++++++
fs/autofs/init.c | 49 +
fs/autofs/inode.c | 368 +++++++++++
fs/autofs/root.c | 898 ++++++++++++++++++++++++++
fs/autofs/symlink.c | 21 +
fs/autofs/waitq.c | 570 +++++++++++++++++
fs/autofs4/Kconfig | 31 +
fs/autofs4/Makefile | 10
fs/autofs4/autofs_i.h | 341 ----------
fs/autofs4/dev-ioctl.c | 760 ----------------------
fs/autofs4/expire.c | 562 ----------------
fs/autofs4/init.c | 52 --
fs/autofs4/inode.c | 371 -----------
fs/autofs4/root.c | 898 --------------------------
fs/autofs4/symlink.c | 24 -
fs/autofs4/waitq.c | 572 -----------------
fs/compat_ioctl.c | 1
include/linux/auto_dev-ioctl.h | 229 -------
include/linux/auto_fs.h | 5
include/uapi/linux/auto_dev-ioctl.h | 224 ++++++
include/uapi/linux/auto_fs.h | 156 ++++-
include/uapi/linux/auto_fs4.h | 158 -----
122 files changed, 4090 insertions(+), 4086 deletions(-)
create mode 100644 fs/autofs/Kconfig
create mode 100644 fs/autofs/Makefile
create mode 100644 fs/autofs/autofs_i.h
create mode 100644 fs/autofs/dev-ioctl.c
create mode 100644 fs/autofs/expire.c
create mode 100644 fs/autofs/init.c
create mode 100644 fs/autofs/inode.c
create mode 100644 fs/autofs/root.c
create mode 100644 fs/autofs/symlink.c
create mode 100644 fs/autofs/waitq.c
delete mode 100644 fs/autofs4/autofs_i.h
delete mode 100644 fs/autofs4/dev-ioctl.c
delete mode 100644 fs/autofs4/expire.c
delete mode 100644 fs/autofs4/init.c
delete mode 100644 fs/autofs4/inode.c
delete mode 100644 fs/autofs4/root.c
delete mode 100644 fs/autofs4/symlink.c
delete mode 100644 fs/autofs4/waitq.c
delete mode 100644 include/linux/auto_dev-ioctl.h
create mode 100644 include/uapi/linux/auto_dev-ioctl.h
--
Signature
^ permalink raw reply [flat|nested] 12+ messages in thread
* [RFC PATCH 1/7] autofs4 - coding style fixes
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
@ 2013-07-01 3:14 ` Ian Kent
2013-07-01 3:14 ` [RFC PATCH 2/7] autofs4 - fix string.h include in auto_dev-ioctl.h Ian Kent
` (5 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
Try and make the coding style completely consistent throughtout the
autofs module and inline with kernel coding style recommendations.
Signed-off-by: Ian Kent <raven@themaw.net>
---
fs/autofs4/autofs_i.h | 30 +++++++++++++++---------------
fs/autofs4/expire.c | 38 +++++++++++++++++++-------------------
fs/autofs4/init.c | 5 +----
fs/autofs4/inode.c | 5 +----
fs/autofs4/root.c | 22 +++++++++++-----------
fs/autofs4/symlink.c | 5 +----
fs/autofs4/waitq.c | 14 ++++++--------
include/linux/auto_fs.h | 5 +----
8 files changed, 55 insertions(+), 69 deletions(-)
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 16d3288..76b8097 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -1,7 +1,4 @@
-/* -*- c -*- ------------------------------------------------------------- *
- *
- * linux/fs/autofs/autofs_i.h
- *
+/*
* Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
*
@@ -51,12 +48,14 @@
printk(KERN_ERR "pid %d: %s: " fmt "\n", \
current->pid, __func__, ##__VA_ARGS__)
-/* Unified info structure. This is pointed to by both the dentry and
- inode structures. Each file in the filesystem has an instance of this
- structure. It holds a reference to the dentry, so dentries are never
- flushed while the file exists. All name lookups are dealt with at the
- dentry level, although the filesystem can interfere in the validation
- process. Readdir is implemented by traversing the dentry lists. */
+/*
+ * Unified info structure. This is pointed to by both the dentry and
+ * inode structures. Each file in the filesystem has an instance of this
+ * structure. It holds a reference to the dentry, so dentries are never
+ * flushed while the file exists. All name lookups are dealt with at the
+ * dentry level, although the filesystem can interfere in the validation
+ * process. Readdir is implemented by traversing the dentry lists.
+ */
struct autofs_info {
struct dentry *dentry;
struct inode *inode;
@@ -78,7 +77,7 @@ struct autofs_info {
kgid_t gid;
};
-#define AUTOFS_INF_EXPIRING (1<<0) /* dentry is in the process of expiring */
+#define AUTOFS_INF_EXPIRING (1<<0) /* dentry in the process of expiring */
#define AUTOFS_INF_PENDING (1<<2) /* dentry pending mount */
struct autofs_wait_queue {
@@ -138,7 +137,8 @@ static inline struct autofs_info *autofs4_dentry_ino(struct dentry *dentry)
processes which do manipulations for us in user space sees the raw
filesystem without "magic".) */
-static inline int autofs4_oz_mode(struct autofs_sb_info *sbi) {
+static inline int autofs4_oz_mode(struct autofs_sb_info *sbi)
+{
return sbi->catatonic || task_pgrp(current) == sbi->oz_pgrp;
}
@@ -163,12 +163,12 @@ void autofs4_free_ino(struct autofs_info *);
int is_autofs4_dentry(struct dentry *);
int autofs4_expire_wait(struct dentry *dentry);
int autofs4_expire_run(struct super_block *, struct vfsmount *,
- struct autofs_sb_info *,
- struct autofs_packet_expire __user *);
+ struct autofs_sb_info *,
+ struct autofs_packet_expire __user *);
int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
struct autofs_sb_info *sbi, int when);
int autofs4_expire_multi(struct super_block *, struct vfsmount *,
- struct autofs_sb_info *, int __user *);
+ struct autofs_sb_info *, int __user *);
struct dentry *autofs4_expire_direct(struct super_block *sb,
struct vfsmount *mnt,
struct autofs_sb_info *sbi, int how);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index 13ddec9..ddee37a 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -1,7 +1,4 @@
-/* -*- c -*- --------------------------------------------------------------- *
- *
- * linux/fs/autofs/expire.c
- *
+/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
@@ -18,7 +15,7 @@ static unsigned long now;
/* Check if a dentry can be expired */
static inline int autofs4_can_expire(struct dentry *dentry,
- unsigned long timeout, int do_now)
+ unsigned long timeout, int do_now)
{
struct autofs_info *ino = autofs4_dentry_ino(dentry);
@@ -81,7 +78,7 @@ done:
* Calculate and dget next entry in the subdirs list under root.
*/
static struct dentry *get_next_positive_subdir(struct dentry *prev,
- struct dentry *root)
+ struct dentry *root)
{
struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
struct list_head *next;
@@ -128,7 +125,7 @@ cont:
* Calculate and dget next entry in top down tree traversal.
*/
static struct dentry *get_next_positive_dentry(struct dentry *prev,
- struct dentry *root)
+ struct dentry *root)
{
struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
struct list_head *next;
@@ -194,9 +191,9 @@ again:
* autofs submounts.
*/
static int autofs4_direct_busy(struct vfsmount *mnt,
- struct dentry *top,
- unsigned long timeout,
- int do_now)
+ struct dentry *top,
+ unsigned long timeout,
+ int do_now)
{
DPRINTK("top %p %.*s",
top, (int) top->d_name.len, top->d_name.name);
@@ -216,7 +213,8 @@ static int autofs4_direct_busy(struct vfsmount *mnt,
return 0;
}
-/* Check a directory tree of mount points for busyness
+/*
+ * Check a directory tree of mount points for busyness
* The tree is not busy iff no mountpoints are busy
*/
static int autofs4_tree_busy(struct vfsmount *mnt,
@@ -387,8 +385,8 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
* offset (autofs-5.0+).
*/
if (d_mountpoint(dentry)) {
- DPRINTK("checking mountpoint %p %.*s",
- dentry, (int)dentry->d_name.len, dentry->d_name.name);
+ DPRINTK("checking mountpoint %p %.*s", dentry,
+ (int)dentry->d_name.len, dentry->d_name.name);
/* Can we umount this guy */
if (autofs4_mount_busy(mnt, dentry))
@@ -485,9 +483,9 @@ int autofs4_expire_wait(struct dentry *dentry)
/* Perform an expiry operation */
int autofs4_expire_run(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi,
- struct autofs_packet_expire __user *pkt_p)
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi,
+ struct autofs_packet_expire __user *pkt_p)
{
struct autofs_packet_expire pkt;
struct autofs_info *ino;
@@ -507,7 +505,7 @@ int autofs4_expire_run(struct super_block *sb,
pkt.name[pkt.len] = '\0';
dput(dentry);
- if ( copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)) )
+ if (copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)))
ret = -EFAULT;
spin_lock(&sbi->fs_lock);
@@ -547,8 +545,10 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
return ret;
}
-/* Call repeatedly until it returns -EAGAIN, meaning there's nothing
- more to be done */
+/*
+ * Call repeatedly until it returns -EAGAIN, meaning there's nothing
+ * more to be done.
+ */
int autofs4_expire_multi(struct super_block *sb, struct vfsmount *mnt,
struct autofs_sb_info *sbi, int __user *arg)
{
diff --git a/fs/autofs4/init.c b/fs/autofs4/init.c
index b3db517..5a66322 100644
--- a/fs/autofs4/init.c
+++ b/fs/autofs4/init.c
@@ -1,7 +1,4 @@
-/* -*- c -*- --------------------------------------------------------------- *
- *
- * linux/fs/autofs/init.c
- *
+/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 1b045ec..eafdf6e 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -1,7 +1,4 @@
-/* -*- c -*- --------------------------------------------------------------- *
- *
- * linux/fs/autofs/inode.c
- *
+/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
*
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index ca8e555..a5b3825 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -1,7 +1,4 @@
-/* -*- c -*- --------------------------------------------------------------- *
- *
- * linux/fs/autofs/root.c
- *
+/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
@@ -466,7 +463,8 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
}
/* Lookups in the root directory */
-static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
+static struct dentry *autofs4_lookup(struct inode *dir,
+ struct dentry *dentry, unsigned int flags)
{
struct autofs_sb_info *sbi;
struct autofs_info *ino;
@@ -743,7 +741,7 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t m
/* Get/set timeout ioctl() operation */
#ifdef CONFIG_COMPAT
static inline int autofs4_compat_get_set_timeout(struct autofs_sb_info *sbi,
- compat_ulong_t __user *p)
+ compat_ulong_t __user *p)
{
int rv;
unsigned long ntimeout;
@@ -762,7 +760,7 @@ static inline int autofs4_compat_get_set_timeout(struct autofs_sb_info *sbi,
#endif
static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
- unsigned long __user *p)
+ unsigned long __user *p)
{
int rv;
unsigned long ntimeout;
@@ -780,13 +778,15 @@ static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
}
/* Return protocol version */
-static inline int autofs4_get_protover(struct autofs_sb_info *sbi, int __user *p)
+static inline int autofs4_get_protover(struct autofs_sb_info *sbi,
+ int __user *p)
{
return put_user(sbi->version, p);
}
/* Return protocol sub version */
-static inline int autofs4_get_protosubver(struct autofs_sb_info *sbi, int __user *p)
+static inline int autofs4_get_protosubver(struct autofs_sb_info *sbi,
+ int __user *p)
{
return put_user(sbi->sub_version, p);
}
@@ -882,7 +882,7 @@ static long autofs4_root_ioctl(struct file *filp,
#ifdef CONFIG_COMPAT
static long autofs4_root_compat_ioctl(struct file *filp,
- unsigned int cmd, unsigned long arg)
+ unsigned int cmd, unsigned long arg)
{
struct inode *inode = file_inode(filp);
int ret;
@@ -891,7 +891,7 @@ static long autofs4_root_compat_ioctl(struct file *filp,
ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg);
else
ret = autofs4_root_ioctl_unlocked(inode, filp, cmd,
- (unsigned long)compat_ptr(arg));
+ (unsigned long) compat_ptr(arg));
return ret;
}
diff --git a/fs/autofs4/symlink.c b/fs/autofs4/symlink.c
index f27c094..063b240 100644
--- a/fs/autofs4/symlink.c
+++ b/fs/autofs4/symlink.c
@@ -1,7 +1,4 @@
-/* -*- c -*- --------------------------------------------------------------- *
- *
- * linux/fs/autofs/symlink.c
- *
+/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 309ca6b..f1fb9d7 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -1,7 +1,4 @@
-/* -*- c -*- --------------------------------------------------------------- *
- *
- * linux/fs/autofs/waitq.c
- *
+/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
*
@@ -103,7 +100,8 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
size_t pktsz;
DPRINTK("wait id = 0x%08lx, name = %.*s, type=%d",
- (unsigned long) wq->wait_queue_token, wq->name.len, wq->name.name, type);
+ (unsigned long) wq->wait_queue_token,
+ wq->name.len, wq->name.name, type);
memset(&pkt,0,sizeof pkt); /* For security reasons */
@@ -237,7 +235,7 @@ autofs4_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
if (wq->name.hash == qstr->hash &&
wq->name.len == qstr->len &&
wq->name.name &&
- !memcmp(wq->name.name, qstr->name, qstr->len))
+ !memcmp(wq->name.name, qstr->name, qstr->len))
break;
}
return wq;
@@ -346,8 +344,8 @@ static int validate_request(struct autofs_wait_queue **wait,
return 1;
}
-int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
- enum autofs_notify notify)
+int autofs4_wait(struct autofs_sb_info *sbi,
+ struct dentry *dentry, enum autofs_notify notify)
{
struct autofs_wait_queue *wq;
struct qstr qstr;
diff --git a/include/linux/auto_fs.h b/include/linux/auto_fs.h
index fcd704d..077f2c4 100644
--- a/include/linux/auto_fs.h
+++ b/include/linux/auto_fs.h
@@ -1,7 +1,4 @@
-/* -*- linux-c -*- ------------------------------------------------------- *
- *
- * linux/include/linux/auto_fs.h
- *
+/*
* Copyright 1997 Transmeta Corporation - All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [RFC PATCH 2/7] autofs4 - fix string.h include in auto_dev-ioctl.h
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
2013-07-01 3:14 ` [RFC PATCH 1/7] autofs4 - coding style fixes Ian Kent
@ 2013-07-01 3:14 ` Ian Kent
2013-07-01 3:14 ` [RFC PATCH 3/7] autofs4 - move linux/auto_dev-ioctl.h to uapi/linux Ian Kent
` (4 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
Since including linux/string.h will now do the right thing remove the
conditional check.
Signed-off-by: Ian Kent <raven@themaw.net>
---
include/linux/auto_dev-ioctl.h | 5 -----
1 file changed, 5 deletions(-)
diff --git a/include/linux/auto_dev-ioctl.h b/include/linux/auto_dev-ioctl.h
index 850f39b..fe4f373 100644
--- a/include/linux/auto_dev-ioctl.h
+++ b/include/linux/auto_dev-ioctl.h
@@ -11,12 +11,7 @@
#define _LINUX_AUTO_DEV_IOCTL_H
#include <linux/auto_fs.h>
-
-#ifdef __KERNEL__
#include <linux/string.h>
-#else
-#include <string.h>
-#endif /* __KERNEL__ */
#define AUTOFS_DEVICE_NAME "autofs"
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [RFC PATCH 3/7] autofs4 - move linux/auto_dev-ioctl.h to uapi/linux
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
2013-07-01 3:14 ` [RFC PATCH 1/7] autofs4 - coding style fixes Ian Kent
2013-07-01 3:14 ` [RFC PATCH 2/7] autofs4 - fix string.h include in auto_dev-ioctl.h Ian Kent
@ 2013-07-01 3:14 ` Ian Kent
2013-07-01 3:14 ` [RFC PATCH 4/7] autofs - merge auto_fs.h and auto_fs4.h Ian Kent
` (3 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
Since linux/auto_dev-ioctl.h wasn't included in include/linux/Kbuild (although
I should have added it) it wasn't moved to uapi/linux as part of the uapi
series.
Signed-off-by: Ian Kent <raven@themaw.net>
---
include/linux/auto_dev-ioctl.h | 224 -----------------------------------
include/uapi/linux/auto_dev-ioctl.h | 224 +++++++++++++++++++++++++++++++++++
2 files changed, 224 insertions(+), 224 deletions(-)
delete mode 100644 include/linux/auto_dev-ioctl.h
create mode 100644 include/uapi/linux/auto_dev-ioctl.h
diff --git a/include/linux/auto_dev-ioctl.h b/include/linux/auto_dev-ioctl.h
deleted file mode 100644
index fe4f373..0000000
--- a/include/linux/auto_dev-ioctl.h
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Copyright 2008 Red Hat, Inc. All rights reserved.
- * Copyright 2008 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- */
-
-#ifndef _LINUX_AUTO_DEV_IOCTL_H
-#define _LINUX_AUTO_DEV_IOCTL_H
-
-#include <linux/auto_fs.h>
-#include <linux/string.h>
-
-#define AUTOFS_DEVICE_NAME "autofs"
-
-#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
-#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
-
-#define AUTOFS_DEVID_LEN 16
-
-#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
-
-/*
- * An ioctl interface for autofs mount point control.
- */
-
-struct args_protover {
- __u32 version;
-};
-
-struct args_protosubver {
- __u32 sub_version;
-};
-
-struct args_openmount {
- __u32 devid;
-};
-
-struct args_ready {
- __u32 token;
-};
-
-struct args_fail {
- __u32 token;
- __s32 status;
-};
-
-struct args_setpipefd {
- __s32 pipefd;
-};
-
-struct args_timeout {
- __u64 timeout;
-};
-
-struct args_requester {
- __u32 uid;
- __u32 gid;
-};
-
-struct args_expire {
- __u32 how;
-};
-
-struct args_askumount {
- __u32 may_umount;
-};
-
-struct args_ismountpoint {
- union {
- struct args_in {
- __u32 type;
- } in;
- struct args_out {
- __u32 devid;
- __u32 magic;
- } out;
- };
-};
-
-/*
- * All the ioctls use this structure.
- * When sending a path size must account for the total length
- * of the chunk of memory otherwise is is the size of the
- * structure.
- */
-
-struct autofs_dev_ioctl {
- __u32 ver_major;
- __u32 ver_minor;
- __u32 size; /* total size of data passed in
- * including this struct */
- __s32 ioctlfd; /* automount command fd */
-
- /* Command parameters */
-
- union {
- struct args_protover protover;
- struct args_protosubver protosubver;
- struct args_openmount openmount;
- struct args_ready ready;
- struct args_fail fail;
- struct args_setpipefd setpipefd;
- struct args_timeout timeout;
- struct args_requester requester;
- struct args_expire expire;
- struct args_askumount askumount;
- struct args_ismountpoint ismountpoint;
- };
-
- char path[0];
-};
-
-static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
-{
- memset(in, 0, sizeof(struct autofs_dev_ioctl));
- in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
- in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
- in->size = sizeof(struct autofs_dev_ioctl);
- in->ioctlfd = -1;
- return;
-}
-
-/*
- * If you change this make sure you make the corresponding change
- * to autofs-dev-ioctl.c:lookup_ioctl()
- */
-enum {
- /* Get various version info */
- AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
- AUTOFS_DEV_IOCTL_PROTOVER_CMD,
- AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
-
- /* Open mount ioctl fd */
- AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
-
- /* Close mount ioctl fd */
- AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
-
- /* Mount/expire status returns */
- AUTOFS_DEV_IOCTL_READY_CMD,
- AUTOFS_DEV_IOCTL_FAIL_CMD,
-
- /* Activate/deactivate autofs mount */
- AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
- AUTOFS_DEV_IOCTL_CATATONIC_CMD,
-
- /* Expiry timeout */
- AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
-
- /* Get mount last requesting uid and gid */
- AUTOFS_DEV_IOCTL_REQUESTER_CMD,
-
- /* Check for eligible expire candidates */
- AUTOFS_DEV_IOCTL_EXPIRE_CMD,
-
- /* Request busy status */
- AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
-
- /* Check if path is a mountpoint */
- AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
-};
-
-#define AUTOFS_IOCTL 0x93
-
-#define AUTOFS_DEV_IOCTL_VERSION \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_PROTOVER \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_PROTOSUBVER \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_OPENMOUNT \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_READY \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_FAIL \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_SETPIPEFD \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_CATATONIC \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_TIMEOUT \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_REQUESTER \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_EXPIRE \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_ASKUMOUNT \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
-
-#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
- _IOWR(AUTOFS_IOCTL, \
- AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
-
-#endif /* _LINUX_AUTO_DEV_IOCTL_H */
diff --git a/include/uapi/linux/auto_dev-ioctl.h b/include/uapi/linux/auto_dev-ioctl.h
new file mode 100644
index 0000000..161d6b9
--- /dev/null
+++ b/include/uapi/linux/auto_dev-ioctl.h
@@ -0,0 +1,224 @@
+/*
+ * Copyright 2008 Red Hat, Inc. All rights reserved.
+ * Copyright 2008 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ */
+
+#ifndef _UAPI_LINUX_AUTO_DEV_IOCTL_H
+#define _UAPI_LINUX_AUTO_DEV_IOCTL_H
+
+#include <linux/auto_fs.h>
+#include <linux/string.h>
+
+#define AUTOFS_DEVICE_NAME "autofs"
+
+#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
+#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
+
+#define AUTOFS_DEVID_LEN 16
+
+#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
+
+/*
+ * An ioctl interface for autofs mount point control.
+ */
+
+struct args_protover {
+ __u32 version;
+};
+
+struct args_protosubver {
+ __u32 sub_version;
+};
+
+struct args_openmount {
+ __u32 devid;
+};
+
+struct args_ready {
+ __u32 token;
+};
+
+struct args_fail {
+ __u32 token;
+ __s32 status;
+};
+
+struct args_setpipefd {
+ __s32 pipefd;
+};
+
+struct args_timeout {
+ __u64 timeout;
+};
+
+struct args_requester {
+ __u32 uid;
+ __u32 gid;
+};
+
+struct args_expire {
+ __u32 how;
+};
+
+struct args_askumount {
+ __u32 may_umount;
+};
+
+struct args_ismountpoint {
+ union {
+ struct args_in {
+ __u32 type;
+ } in;
+ struct args_out {
+ __u32 devid;
+ __u32 magic;
+ } out;
+ };
+};
+
+/*
+ * All the ioctls use this structure.
+ * When sending a path size must account for the total length
+ * of the chunk of memory otherwise is is the size of the
+ * structure.
+ */
+
+struct autofs_dev_ioctl {
+ __u32 ver_major;
+ __u32 ver_minor;
+ __u32 size; /* total size of data passed in
+ * including this struct */
+ __s32 ioctlfd; /* automount command fd */
+
+ /* Command parameters */
+
+ union {
+ struct args_protover protover;
+ struct args_protosubver protosubver;
+ struct args_openmount openmount;
+ struct args_ready ready;
+ struct args_fail fail;
+ struct args_setpipefd setpipefd;
+ struct args_timeout timeout;
+ struct args_requester requester;
+ struct args_expire expire;
+ struct args_askumount askumount;
+ struct args_ismountpoint ismountpoint;
+ };
+
+ char path[0];
+};
+
+static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
+{
+ memset(in, 0, sizeof(struct autofs_dev_ioctl));
+ in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
+ in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
+ in->size = sizeof(struct autofs_dev_ioctl);
+ in->ioctlfd = -1;
+ return;
+}
+
+/*
+ * If you change this make sure you make the corresponding change
+ * to autofs-dev-ioctl.c:lookup_ioctl()
+ */
+enum {
+ /* Get various version info */
+ AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
+ AUTOFS_DEV_IOCTL_PROTOVER_CMD,
+ AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
+
+ /* Open mount ioctl fd */
+ AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
+
+ /* Close mount ioctl fd */
+ AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
+
+ /* Mount/expire status returns */
+ AUTOFS_DEV_IOCTL_READY_CMD,
+ AUTOFS_DEV_IOCTL_FAIL_CMD,
+
+ /* Activate/deactivate autofs mount */
+ AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
+ AUTOFS_DEV_IOCTL_CATATONIC_CMD,
+
+ /* Expiry timeout */
+ AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
+
+ /* Get mount last requesting uid and gid */
+ AUTOFS_DEV_IOCTL_REQUESTER_CMD,
+
+ /* Check for eligible expire candidates */
+ AUTOFS_DEV_IOCTL_EXPIRE_CMD,
+
+ /* Request busy status */
+ AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
+
+ /* Check if path is a mountpoint */
+ AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
+};
+
+#define AUTOFS_IOCTL 0x93
+
+#define AUTOFS_DEV_IOCTL_VERSION \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_PROTOVER \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_PROTOSUBVER \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_OPENMOUNT \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_READY \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_FAIL \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_SETPIPEFD \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_CATATONIC \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_TIMEOUT \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_REQUESTER \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_EXPIRE \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_ASKUMOUNT \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
+
+#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
+ _IOWR(AUTOFS_IOCTL, \
+ AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
+
+#endif /* _UAPI_LINUX_AUTO_DEV_IOCTL_H */
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [RFC PATCH 4/7] autofs - merge auto_fs.h and auto_fs4.h
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
` (2 preceding siblings ...)
2013-07-01 3:14 ` [RFC PATCH 3/7] autofs4 - move linux/auto_dev-ioctl.h to uapi/linux Ian Kent
@ 2013-07-01 3:14 ` Ian Kent
2013-07-01 3:14 ` [RFC PATCH 5/7] autofs - use autofs instead of autofs4 everywhere Ian Kent
` (2 subsequent siblings)
6 siblings, 0 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
The autofs module has long since been removed so there's no need to have
two separate include files for autofs.
Signed-off-by: Ian Kent <raven@themaw.net>
---
fs/autofs4/autofs_i.h | 2 -
fs/compat_ioctl.c | 1
include/uapi/linux/auto_fs.h | 156 +++++++++++++++++++++++++++++++++++++---
include/uapi/linux/auto_fs4.h | 158 +----------------------------------------
4 files changed, 149 insertions(+), 168 deletions(-)
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 76b8097..1a79bc7 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -10,7 +10,7 @@
/* Internal header file for autofs */
-#include <linux/auto_fs4.h>
+#include <linux/auto_fs.h>
#include <linux/auto_dev-ioctl.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 5d19acf..43345ce 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -38,7 +38,6 @@
#include <linux/if_pppox.h>
#include <linux/mtio.h>
#include <linux/auto_fs.h>
-#include <linux/auto_fs4.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
index bb991df..fe7518d 100644
--- a/include/uapi/linux/auto_fs.h
+++ b/include/uapi/linux/auto_fs.h
@@ -1,8 +1,7 @@
-/* -*- linux-c -*- ------------------------------------------------------- *
- *
- * linux/include/linux/auto_fs.h
- *
- * Copyright 1997 Transmeta Corporation - All Rights Reserved
+/*
+ * Copyright 1997 Transmeta Corporation - All Rights Reserved
+ * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
+ * Copyright 2005-2006,2013 Ian Kent <raven@themaw.net>
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
@@ -10,7 +9,6 @@
*
* ----------------------------------------------------------------------- */
-
#ifndef _UAPI_LINUX_AUTO_FS_H
#define _UAPI_LINUX_AUTO_FS_H
@@ -19,13 +17,11 @@
#include <sys/ioctl.h>
#endif /* __KERNEL__ */
+#define AUTOFS_PROTO_VERSION 5
+#define AUTOFS_MIN_PROTO_VERSION 3
+#define AUTOFS_MAX_PROTO_VERSION 5
-/* This file describes autofs v3 */
-#define AUTOFS_PROTO_VERSION 3
-
-/* Range of protocol versions defined */
-#define AUTOFS_MAX_PROTO_VERSION AUTOFS_PROTO_VERSION
-#define AUTOFS_MIN_PROTO_VERSION AUTOFS_PROTO_VERSION
+#define AUTOFS_PROTO_SUBVERSION 2
/*
* The wait_queue_token (autofs_wqt_t) is part of a structure which is passed
@@ -71,4 +67,140 @@ struct autofs_packet_expire {
#define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long)
#define AUTOFS_IOC_EXPIRE _IOR(0x93,0x65,struct autofs_packet_expire)
+/* autofs version 4 and later definitions */
+
+/* Mask for expire behaviour */
+#define AUTOFS_EXP_IMMEDIATE 1
+#define AUTOFS_EXP_LEAVES 2
+
+#define AUTOFS_TYPE_ANY 0U
+#define AUTOFS_TYPE_INDIRECT 1U
+#define AUTOFS_TYPE_DIRECT 2U
+#define AUTOFS_TYPE_OFFSET 4U
+
+static inline void set_autofs_type_indirect(unsigned int *type)
+{
+ *type = AUTOFS_TYPE_INDIRECT;
+ return;
+}
+
+static inline unsigned int autofs_type_indirect(unsigned int type)
+{
+ return (type == AUTOFS_TYPE_INDIRECT);
+}
+
+static inline void set_autofs_type_direct(unsigned int *type)
+{
+ *type = AUTOFS_TYPE_DIRECT;
+ return;
+}
+
+static inline unsigned int autofs_type_direct(unsigned int type)
+{
+ return (type == AUTOFS_TYPE_DIRECT);
+}
+
+static inline void set_autofs_type_offset(unsigned int *type)
+{
+ *type = AUTOFS_TYPE_OFFSET;
+ return;
+}
+
+static inline unsigned int autofs_type_offset(unsigned int type)
+{
+ return (type == AUTOFS_TYPE_OFFSET);
+}
+
+static inline unsigned int autofs_type_trigger(unsigned int type)
+{
+ return (type == AUTOFS_TYPE_DIRECT || type == AUTOFS_TYPE_OFFSET);
+}
+
+/*
+ * This isn't really a type as we use it to say "no type set" to
+ * indicate we want to search for "any" mount in the
+ * autofs_dev_ioctl_ismountpoint() device ioctl function.
+ */
+static inline void set_autofs_type_any(unsigned int *type)
+{
+ *type = AUTOFS_TYPE_ANY;
+ return;
+}
+
+static inline unsigned int autofs_type_any(unsigned int type)
+{
+ return (type == AUTOFS_TYPE_ANY);
+}
+
+/* Daemon notification packet types */
+enum autofs_notify {
+ NFY_NONE,
+ NFY_MOUNT,
+ NFY_EXPIRE
+};
+
+/* Kernel protocol version 4 packet types */
+
+/* Expire entry (umount request) */
+#define autofs_ptype_expire_multi 2
+
+/* Kernel protocol version 5 packet types */
+
+/* Indirect mount missing and expire requests. */
+#define autofs_ptype_missing_indirect 3
+#define autofs_ptype_expire_indirect 4
+
+/* Direct mount missing and expire requests */
+#define autofs_ptype_missing_direct 5
+#define autofs_ptype_expire_direct 6
+
+/* v4 multi expire (via pipe) */
+struct autofs_packet_expire_multi {
+ struct autofs_packet_hdr hdr;
+ autofs_wqt_t wait_queue_token;
+ int len;
+ char name[NAME_MAX+1];
+};
+
+union autofs_packet_union {
+ struct autofs_packet_hdr hdr;
+ struct autofs_packet_missing missing;
+ struct autofs_packet_expire expire;
+ struct autofs_packet_expire_multi expire_multi;
+};
+
+/* autofs v5 common packet struct */
+struct autofs_v5_packet {
+ struct autofs_packet_hdr hdr;
+ autofs_wqt_t wait_queue_token;
+ __u32 dev;
+ __u64 ino;
+ __u32 uid;
+ __u32 gid;
+ __u32 pid;
+ __u32 tgid;
+ __u32 len;
+ char name[NAME_MAX+1];
+};
+
+typedef struct autofs_v5_packet autofs_packet_missing_indirect_t;
+typedef struct autofs_v5_packet autofs_packet_expire_indirect_t;
+typedef struct autofs_v5_packet autofs_packet_missing_direct_t;
+typedef struct autofs_v5_packet autofs_packet_expire_direct_t;
+
+union autofs_v5_packet_union {
+ struct autofs_packet_hdr hdr;
+ struct autofs_v5_packet v5_packet;
+ autofs_packet_missing_indirect_t missing_indirect;
+ autofs_packet_expire_indirect_t expire_indirect;
+ autofs_packet_missing_direct_t missing_direct;
+ autofs_packet_expire_direct_t expire_direct;
+};
+
+#define AUTOFS_IOC_EXPIRE_MULTI _IOW(0x93,0x66,int)
+#define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI
+#define AUTOFS_IOC_EXPIRE_DIRECT AUTOFS_IOC_EXPIRE_MULTI
+#define AUTOFS_IOC_PROTOSUBVER _IOR(0x93,0x67,int)
+#define AUTOFS_IOC_ASKUMOUNT _IOR(0x93,0x70,int)
+
#endif /* _UAPI_LINUX_AUTO_FS_H */
diff --git a/include/uapi/linux/auto_fs4.h b/include/uapi/linux/auto_fs4.h
index e02982f..69205a3 100644
--- a/include/uapi/linux/auto_fs4.h
+++ b/include/uapi/linux/auto_fs4.h
@@ -1,6 +1,4 @@
-/* -*- c -*-
- * linux/include/linux/auto_fs4.h
- *
+/*
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
*
* This file is part of the Linux kernel and is made available under
@@ -8,157 +6,9 @@
* option, any later version, incorporated herein by reference.
*/
-#ifndef _LINUX_AUTO_FS4_H
-#define _LINUX_AUTO_FS4_H
+#ifndef _UAPI_LINUX_AUTO_FS4_H
+#define _UAPI_LINUX_AUTO_FS4_H
-/* Include common v3 definitions */
-#include <linux/types.h>
#include <linux/auto_fs.h>
-/* autofs v4 definitions */
-#undef AUTOFS_PROTO_VERSION
-#undef AUTOFS_MIN_PROTO_VERSION
-#undef AUTOFS_MAX_PROTO_VERSION
-
-#define AUTOFS_PROTO_VERSION 5
-#define AUTOFS_MIN_PROTO_VERSION 3
-#define AUTOFS_MAX_PROTO_VERSION 5
-
-#define AUTOFS_PROTO_SUBVERSION 2
-
-/* Mask for expire behaviour */
-#define AUTOFS_EXP_IMMEDIATE 1
-#define AUTOFS_EXP_LEAVES 2
-
-#define AUTOFS_TYPE_ANY 0U
-#define AUTOFS_TYPE_INDIRECT 1U
-#define AUTOFS_TYPE_DIRECT 2U
-#define AUTOFS_TYPE_OFFSET 4U
-
-static inline void set_autofs_type_indirect(unsigned int *type)
-{
- *type = AUTOFS_TYPE_INDIRECT;
- return;
-}
-
-static inline unsigned int autofs_type_indirect(unsigned int type)
-{
- return (type == AUTOFS_TYPE_INDIRECT);
-}
-
-static inline void set_autofs_type_direct(unsigned int *type)
-{
- *type = AUTOFS_TYPE_DIRECT;
- return;
-}
-
-static inline unsigned int autofs_type_direct(unsigned int type)
-{
- return (type == AUTOFS_TYPE_DIRECT);
-}
-
-static inline void set_autofs_type_offset(unsigned int *type)
-{
- *type = AUTOFS_TYPE_OFFSET;
- return;
-}
-
-static inline unsigned int autofs_type_offset(unsigned int type)
-{
- return (type == AUTOFS_TYPE_OFFSET);
-}
-
-static inline unsigned int autofs_type_trigger(unsigned int type)
-{
- return (type == AUTOFS_TYPE_DIRECT || type == AUTOFS_TYPE_OFFSET);
-}
-
-/*
- * This isn't really a type as we use it to say "no type set" to
- * indicate we want to search for "any" mount in the
- * autofs_dev_ioctl_ismountpoint() device ioctl function.
- */
-static inline void set_autofs_type_any(unsigned int *type)
-{
- *type = AUTOFS_TYPE_ANY;
- return;
-}
-
-static inline unsigned int autofs_type_any(unsigned int type)
-{
- return (type == AUTOFS_TYPE_ANY);
-}
-
-/* Daemon notification packet types */
-enum autofs_notify {
- NFY_NONE,
- NFY_MOUNT,
- NFY_EXPIRE
-};
-
-/* Kernel protocol version 4 packet types */
-
-/* Expire entry (umount request) */
-#define autofs_ptype_expire_multi 2
-
-/* Kernel protocol version 5 packet types */
-
-/* Indirect mount missing and expire requests. */
-#define autofs_ptype_missing_indirect 3
-#define autofs_ptype_expire_indirect 4
-
-/* Direct mount missing and expire requests */
-#define autofs_ptype_missing_direct 5
-#define autofs_ptype_expire_direct 6
-
-/* v4 multi expire (via pipe) */
-struct autofs_packet_expire_multi {
- struct autofs_packet_hdr hdr;
- autofs_wqt_t wait_queue_token;
- int len;
- char name[NAME_MAX+1];
-};
-
-union autofs_packet_union {
- struct autofs_packet_hdr hdr;
- struct autofs_packet_missing missing;
- struct autofs_packet_expire expire;
- struct autofs_packet_expire_multi expire_multi;
-};
-
-/* autofs v5 common packet struct */
-struct autofs_v5_packet {
- struct autofs_packet_hdr hdr;
- autofs_wqt_t wait_queue_token;
- __u32 dev;
- __u64 ino;
- __u32 uid;
- __u32 gid;
- __u32 pid;
- __u32 tgid;
- __u32 len;
- char name[NAME_MAX+1];
-};
-
-typedef struct autofs_v5_packet autofs_packet_missing_indirect_t;
-typedef struct autofs_v5_packet autofs_packet_expire_indirect_t;
-typedef struct autofs_v5_packet autofs_packet_missing_direct_t;
-typedef struct autofs_v5_packet autofs_packet_expire_direct_t;
-
-union autofs_v5_packet_union {
- struct autofs_packet_hdr hdr;
- struct autofs_v5_packet v5_packet;
- autofs_packet_missing_indirect_t missing_indirect;
- autofs_packet_expire_indirect_t expire_indirect;
- autofs_packet_missing_direct_t missing_direct;
- autofs_packet_expire_direct_t expire_direct;
-};
-
-#define AUTOFS_IOC_EXPIRE_MULTI _IOW(0x93,0x66,int)
-#define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI
-#define AUTOFS_IOC_EXPIRE_DIRECT AUTOFS_IOC_EXPIRE_MULTI
-#define AUTOFS_IOC_PROTOSUBVER _IOR(0x93,0x67,int)
-#define AUTOFS_IOC_ASKUMOUNT _IOR(0x93,0x70,int)
-
-
-#endif /* _LINUX_AUTO_FS4_H */
+#endif /* _UAPI_LINUX_AUTO_FS4_H */
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [RFC PATCH 5/7] autofs - use autofs instead of autofs4 everywhere
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
` (3 preceding siblings ...)
2013-07-01 3:14 ` [RFC PATCH 4/7] autofs - merge auto_fs.h and auto_fs4.h Ian Kent
@ 2013-07-01 3:14 ` Ian Kent
2013-07-01 3:14 ` [RFC PATCH 6/7] autofs - rename module autofs4 to autofs Ian Kent
2013-07-01 3:14 ` [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS Ian Kent
6 siblings, 0 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
Update naming within autofs source to be consistent by changing occurrences
of autofs4 to autofs.
Signed-off-by: Ian Kent <raven@themaw.net>
---
fs/autofs4/autofs_i.h | 92 +++++++++--------
fs/autofs4/dev-ioctl.c | 18 ++-
fs/autofs4/expire.c | 128 ++++++++++++------------
fs/autofs4/init.c | 12 +-
fs/autofs4/inode.c | 46 ++++-----
fs/autofs4/root.c | 256 ++++++++++++++++++++++++------------------------
fs/autofs4/symlink.c | 6 +
fs/autofs4/waitq.c | 55 +++++-----
8 files changed, 307 insertions(+), 306 deletions(-)
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 1a79bc7..dcdd1d7 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -123,29 +123,29 @@ struct autofs_sb_info {
struct list_head expiring_list;
};
-static inline struct autofs_sb_info *autofs4_sbi(struct super_block *sb)
+static inline struct autofs_sb_info *autofs_sbi(struct super_block *sb)
{
return (struct autofs_sb_info *)(sb->s_fs_info);
}
-static inline struct autofs_info *autofs4_dentry_ino(struct dentry *dentry)
+static inline struct autofs_info *autofs_dentry_ino(struct dentry *dentry)
{
return (struct autofs_info *)(dentry->d_fsdata);
}
-/* autofs4_oz_mode(): do we see the man behind the curtain? (The
+/* autofs_oz_mode(): do we see the man behind the curtain? (The
processes which do manipulations for us in user space sees the raw
filesystem without "magic".) */
-static inline int autofs4_oz_mode(struct autofs_sb_info *sbi)
+static inline int autofs_oz_mode(struct autofs_sb_info *sbi)
{
return sbi->catatonic || task_pgrp(current) == sbi->oz_pgrp;
}
/* Does a dentry have some pending activity? */
-static inline int autofs4_ispending(struct dentry *dentry)
+static inline int autofs_ispending(struct dentry *dentry)
{
- struct autofs_info *inf = autofs4_dentry_ino(dentry);
+ struct autofs_info *inf = autofs_dentry_ino(dentry);
if (inf->flags & AUTOFS_INF_PENDING)
return 1;
@@ -156,25 +156,25 @@ static inline int autofs4_ispending(struct dentry *dentry)
return 0;
}
-struct inode *autofs4_get_inode(struct super_block *, umode_t);
-void autofs4_free_ino(struct autofs_info *);
+struct inode *autofs_get_inode(struct super_block *, umode_t);
+void autofs_free_ino(struct autofs_info *);
/* Expiration */
-int is_autofs4_dentry(struct dentry *);
-int autofs4_expire_wait(struct dentry *dentry);
-int autofs4_expire_run(struct super_block *, struct vfsmount *,
- struct autofs_sb_info *,
- struct autofs_packet_expire __user *);
-int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int when);
-int autofs4_expire_multi(struct super_block *, struct vfsmount *,
- struct autofs_sb_info *, int __user *);
-struct dentry *autofs4_expire_direct(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int how);
-struct dentry *autofs4_expire_indirect(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int how);
+int is_autofs_dentry(struct dentry *);
+int autofs_expire_wait(struct dentry *dentry);
+int autofs_expire_run(struct super_block *, struct vfsmount *,
+ struct autofs_sb_info *,
+ struct autofs_packet_expire __user *);
+int autofs_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int when);
+int autofs_expire_multi(struct super_block *, struct vfsmount *,
+ struct autofs_sb_info *, int __user *);
+struct dentry *autofs_expire_direct(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int how);
+struct dentry *autofs_expire_indirect(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int how);
/* Device node initialization */
@@ -183,11 +183,11 @@ void autofs_dev_ioctl_exit(void);
/* Operations structures */
-extern const struct inode_operations autofs4_symlink_inode_operations;
-extern const struct inode_operations autofs4_dir_inode_operations;
-extern const struct file_operations autofs4_dir_operations;
-extern const struct file_operations autofs4_root_operations;
-extern const struct dentry_operations autofs4_dentry_operations;
+extern const struct inode_operations autofs_symlink_inode_operations;
+extern const struct inode_operations autofs_dir_inode_operations;
+extern const struct file_operations autofs_dir_operations;
+extern const struct file_operations autofs_root_operations;
+extern const struct dentry_operations autofs_dentry_operations;
/* VFS automount flags management functions */
@@ -265,9 +265,9 @@ static inline void managed_dentry_clear_managed(struct dentry *dentry)
/* Initializing function */
-int autofs4_fill_super(struct super_block *, void *, int);
-struct autofs_info *autofs4_new_ino(struct autofs_sb_info *);
-void autofs4_clean_ino(struct autofs_info *);
+int autofs_fill_super(struct super_block *, void *, int);
+struct autofs_info *autofs_new_ino(struct autofs_sb_info *);
+void autofs_clean_ino(struct autofs_info *);
static inline int autofs_prepare_pipe(struct file *pipe)
{
@@ -282,16 +282,16 @@ static inline int autofs_prepare_pipe(struct file *pipe)
/* Queue management functions */
-int autofs4_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);
-int autofs4_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
-void autofs4_catatonic_mode(struct autofs_sb_info *);
+int autofs_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);
+int autofs_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
+void autofs_catatonic_mode(struct autofs_sb_info *);
-static inline u32 autofs4_get_dev(struct autofs_sb_info *sbi)
+static inline u32 autofs_get_dev(struct autofs_sb_info *sbi)
{
return new_encode_dev(sbi->sb->s_dev);
}
-static inline u64 autofs4_get_ino(struct autofs_sb_info *sbi)
+static inline u64 autofs_get_ino(struct autofs_sb_info *sbi)
{
return sbi->sb->s_root->d_inode->i_ino;
}
@@ -301,10 +301,10 @@ static inline int simple_positive(struct dentry *dentry)
return dentry->d_inode && !d_unhashed(dentry);
}
-static inline void __autofs4_add_expiring(struct dentry *dentry)
+static inline void __autofs_add_expiring(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
if (ino) {
if (list_empty(&ino->expiring))
list_add(&ino->expiring, &sbi->expiring_list);
@@ -312,10 +312,10 @@ static inline void __autofs4_add_expiring(struct dentry *dentry)
return;
}
-static inline void autofs4_add_expiring(struct dentry *dentry)
+static inline void autofs_add_expiring(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
if (list_empty(&ino->expiring))
@@ -325,10 +325,10 @@ static inline void autofs4_add_expiring(struct dentry *dentry)
return;
}
-static inline void autofs4_del_expiring(struct dentry *dentry)
+static inline void autofs_del_expiring(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
if (!list_empty(&ino->expiring))
@@ -338,4 +338,4 @@ static inline void autofs4_del_expiring(struct dentry *dentry)
return;
}
-extern void autofs4_kill_sb(struct super_block *);
+extern void autofs_kill_sb(struct super_block *);
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 9183821..024389a 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -160,7 +160,7 @@ static struct autofs_sb_info *autofs_dev_ioctl_sbi(struct file *f)
if (f) {
inode = file_inode(f);
- sbi = autofs4_sbi(inode->i_sb);
+ sbi = autofs_sbi(inode->i_sb);
}
return sbi;
}
@@ -217,7 +217,7 @@ static int test_by_dev(struct path *path, void *p)
static int test_by_type(struct path *path, void *p)
{
- struct autofs_info *ino = autofs4_dentry_ino(path->dentry);
+ struct autofs_info *ino = autofs_dentry_ino(path->dentry);
return ino && ino->sbi->type & *(unsigned *)p;
}
@@ -309,7 +309,7 @@ static int autofs_dev_ioctl_ready(struct file *fp,
autofs_wqt_t token;
token = (autofs_wqt_t) param->ready.token;
- return autofs4_wait_release(sbi, token, 0);
+ return autofs_wait_release(sbi, token, 0);
}
/*
@@ -325,7 +325,7 @@ static int autofs_dev_ioctl_fail(struct file *fp,
token = (autofs_wqt_t) param->fail.token;
status = param->fail.status ? param->fail.status : -ENOENT;
- return autofs4_wait_release(sbi, token, status);
+ return autofs_wait_release(sbi, token, status);
}
/*
@@ -397,7 +397,7 @@ static int autofs_dev_ioctl_catatonic(struct file *fp,
struct autofs_sb_info *sbi,
struct autofs_dev_ioctl *param)
{
- autofs4_catatonic_mode(sbi);
+ autofs_catatonic_mode(sbi);
return 0;
}
@@ -444,10 +444,10 @@ static int autofs_dev_ioctl_requester(struct file *fp,
if (err)
goto out;
- ino = autofs4_dentry_ino(path.dentry);
+ ino = autofs_dentry_ino(path.dentry);
if (ino) {
err = 0;
- autofs4_expire_wait(path.dentry);
+ autofs_expire_wait(path.dentry);
spin_lock(&sbi->fs_lock);
param->requester.uid = from_kuid_munged(current_user_ns(), ino->uid);
param->requester.gid = from_kgid_munged(current_user_ns(), ino->gid);
@@ -472,7 +472,7 @@ static int autofs_dev_ioctl_expire(struct file *fp,
how = param->expire.how;
mnt = fp->f_path.mnt;
- return autofs4_do_expire_multi(sbi->sb, mnt, sbi, how);
+ return autofs_do_expire_multi(sbi->sb, mnt, sbi, how);
}
/* Check if autofs mount point is in use */
@@ -686,7 +686,7 @@ static int _autofs_dev_ioctl(unsigned int command, struct autofs_dev_ioctl __use
* Admin needs to be able to set the mount catatonic in
* order to be able to perform the re-open.
*/
- if (!autofs4_oz_mode(sbi) &&
+ if (!autofs_oz_mode(sbi) &&
cmd != AUTOFS_DEV_IOCTL_CATATONIC_CMD) {
err = -EACCES;
fput(fp);
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
index ddee37a..58fba1b 100644
--- a/fs/autofs4/expire.c
+++ b/fs/autofs4/expire.c
@@ -14,10 +14,10 @@
static unsigned long now;
/* Check if a dentry can be expired */
-static inline int autofs4_can_expire(struct dentry *dentry,
- unsigned long timeout, int do_now)
+static inline int autofs_can_expire(struct dentry *dentry,
+ unsigned long timeout, int do_now)
{
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
/* dentry in the process of being deleted */
if (ino == NULL)
@@ -38,7 +38,7 @@ static inline int autofs4_can_expire(struct dentry *dentry,
}
/* Check a mount point for busyness */
-static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
+static int autofs_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
{
struct dentry *top = dentry;
struct path path = {.mnt = mnt, .dentry = dentry};
@@ -52,8 +52,8 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
if (!follow_down_one(&path))
goto done;
- if (is_autofs4_dentry(path.dentry)) {
- struct autofs_sb_info *sbi = autofs4_sbi(path.dentry->d_sb);
+ if (is_autofs_dentry(path.dentry)) {
+ struct autofs_sb_info *sbi = autofs_sbi(path.dentry->d_sb);
/* This is an autofs submount, we can't expire it */
if (autofs_type_indirect(sbi->type))
@@ -62,7 +62,7 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
/* Update the expiry counter if fs is busy */
if (!may_umount_tree(path.mnt)) {
- struct autofs_info *ino = autofs4_dentry_ino(top);
+ struct autofs_info *ino = autofs_dentry_ino(top);
ino->last_used = jiffies;
goto done;
}
@@ -80,7 +80,7 @@ done:
static struct dentry *get_next_positive_subdir(struct dentry *prev,
struct dentry *root)
{
- struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
struct list_head *next;
struct dentry *q;
@@ -127,7 +127,7 @@ cont:
static struct dentry *get_next_positive_dentry(struct dentry *prev,
struct dentry *root)
{
- struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
struct list_head *next;
struct dentry *p, *ret;
@@ -190,24 +190,24 @@ again:
* The tree is not busy iff no mountpoints are busy and there are no
* autofs submounts.
*/
-static int autofs4_direct_busy(struct vfsmount *mnt,
- struct dentry *top,
- unsigned long timeout,
- int do_now)
+static int autofs_direct_busy(struct vfsmount *mnt,
+ struct dentry *top,
+ unsigned long timeout,
+ int do_now)
{
DPRINTK("top %p %.*s",
top, (int) top->d_name.len, top->d_name.name);
/* If it's busy update the expiry counters */
if (!may_umount_tree(mnt)) {
- struct autofs_info *ino = autofs4_dentry_ino(top);
+ struct autofs_info *ino = autofs_dentry_ino(top);
if (ino)
ino->last_used = jiffies;
return 1;
}
/* Timeout of a direct mount is determined by its top dentry */
- if (!autofs4_can_expire(top, timeout, do_now))
+ if (!autofs_can_expire(top, timeout, do_now))
return 1;
return 0;
@@ -217,12 +217,12 @@ static int autofs4_direct_busy(struct vfsmount *mnt,
* Check a directory tree of mount points for busyness
* The tree is not busy iff no mountpoints are busy
*/
-static int autofs4_tree_busy(struct vfsmount *mnt,
- struct dentry *top,
- unsigned long timeout,
- int do_now)
+static int autofs_tree_busy(struct vfsmount *mnt,
+ struct dentry *top,
+ unsigned long timeout,
+ int do_now)
{
- struct autofs_info *top_ino = autofs4_dentry_ino(top);
+ struct autofs_info *top_ino = autofs_dentry_ino(top);
struct dentry *p;
DPRINTK("top %p %.*s",
@@ -244,13 +244,13 @@ static int autofs4_tree_busy(struct vfsmount *mnt,
* If the fs is busy update the expiry counter.
*/
if (d_mountpoint(p)) {
- if (autofs4_mount_busy(mnt, p)) {
+ if (autofs_mount_busy(mnt, p)) {
top_ino->last_used = jiffies;
dput(p);
return 1;
}
} else {
- struct autofs_info *ino = autofs4_dentry_ino(p);
+ struct autofs_info *ino = autofs_dentry_ino(p);
unsigned int ino_count = atomic_read(&ino->count);
/*
@@ -274,16 +274,16 @@ static int autofs4_tree_busy(struct vfsmount *mnt,
}
/* Timeout of a tree mount is ultimately determined by its top dentry */
- if (!autofs4_can_expire(top, timeout, do_now))
+ if (!autofs_can_expire(top, timeout, do_now))
return 1;
return 0;
}
-static struct dentry *autofs4_check_leaves(struct vfsmount *mnt,
- struct dentry *parent,
- unsigned long timeout,
- int do_now)
+static struct dentry *autofs_check_leaves(struct vfsmount *mnt,
+ struct dentry *parent,
+ unsigned long timeout,
+ int do_now)
{
struct dentry *p;
@@ -297,11 +297,11 @@ static struct dentry *autofs4_check_leaves(struct vfsmount *mnt,
if (d_mountpoint(p)) {
/* Can we umount this guy */
- if (autofs4_mount_busy(mnt, p))
+ if (autofs_mount_busy(mnt, p))
continue;
/* Can we expire this guy */
- if (autofs4_can_expire(p, timeout, do_now))
+ if (autofs_can_expire(p, timeout, do_now))
return p;
}
}
@@ -309,10 +309,10 @@ static struct dentry *autofs4_check_leaves(struct vfsmount *mnt,
}
/* Check if we can expire a direct mount (possibly a tree) */
-struct dentry *autofs4_expire_direct(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi,
- int how)
+struct dentry *autofs_expire_direct(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi,
+ int how)
{
unsigned long timeout;
struct dentry *root = dget(sb->s_root);
@@ -326,12 +326,12 @@ struct dentry *autofs4_expire_direct(struct super_block *sb,
timeout = sbi->exp_timeout;
spin_lock(&sbi->fs_lock);
- ino = autofs4_dentry_ino(root);
+ ino = autofs_dentry_ino(root);
/* No point expiring a pending mount */
if (ino->flags & AUTOFS_INF_PENDING)
goto out;
- if (!autofs4_direct_busy(mnt, root, timeout, do_now)) {
- struct autofs_info *ino = autofs4_dentry_ino(root);
+ if (!autofs_direct_busy(mnt, root, timeout, do_now)) {
+ struct autofs_info *ino = autofs_dentry_ino(root);
ino->flags |= AUTOFS_INF_EXPIRING;
init_completion(&ino->expire_complete);
spin_unlock(&sbi->fs_lock);
@@ -350,10 +350,10 @@ out:
* - it is unused by any user process
* - it has been unused for exp_timeout time
*/
-struct dentry *autofs4_expire_indirect(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi,
- int how)
+struct dentry *autofs_expire_indirect(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi,
+ int how)
{
unsigned long timeout;
struct dentry *root = sb->s_root;
@@ -373,7 +373,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
dentry = NULL;
while ((dentry = get_next_positive_subdir(dentry, root))) {
spin_lock(&sbi->fs_lock);
- ino = autofs4_dentry_ino(dentry);
+ ino = autofs_dentry_ino(dentry);
/* No point expiring a pending mount */
if (ino->flags & AUTOFS_INF_PENDING)
goto next;
@@ -389,11 +389,11 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
(int)dentry->d_name.len, dentry->d_name.name);
/* Can we umount this guy */
- if (autofs4_mount_busy(mnt, dentry))
+ if (autofs_mount_busy(mnt, dentry))
goto next;
/* Can we expire this guy */
- if (autofs4_can_expire(dentry, timeout, do_now)) {
+ if (autofs_can_expire(dentry, timeout, do_now)) {
expired = dentry;
goto found;
}
@@ -410,7 +410,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
if (dentry->d_count > ino_count)
goto next;
- if (!autofs4_tree_busy(mnt, dentry, timeout, do_now)) {
+ if (!autofs_tree_busy(mnt, dentry, timeout, do_now)) {
expired = dentry;
goto found;
}
@@ -424,7 +424,7 @@ struct dentry *autofs4_expire_indirect(struct super_block *sb,
if (dentry->d_count > ino_count)
goto next;
- expired = autofs4_check_leaves(mnt, dentry, timeout, do_now);
+ expired = autofs_check_leaves(mnt, dentry, timeout, do_now);
if (expired) {
dput(dentry);
goto found;
@@ -438,7 +438,7 @@ next:
found:
DPRINTK("returning %p %.*s",
expired, (int)expired->d_name.len, expired->d_name.name);
- ino = autofs4_dentry_ino(expired);
+ ino = autofs_dentry_ino(expired);
ino->flags |= AUTOFS_INF_EXPIRING;
init_completion(&ino->expire_complete);
spin_unlock(&sbi->fs_lock);
@@ -452,10 +452,10 @@ found:
return expired;
}
-int autofs4_expire_wait(struct dentry *dentry)
+int autofs_expire_wait(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
int status;
/* Block on any pending expire */
@@ -466,7 +466,7 @@ int autofs4_expire_wait(struct dentry *dentry)
DPRINTK("waiting for expire %p name=%.*s",
dentry, dentry->d_name.len, dentry->d_name.name);
- status = autofs4_wait(sbi, dentry, NFY_NONE);
+ status = autofs_wait(sbi, dentry, NFY_NONE);
wait_for_completion(&ino->expire_complete);
DPRINTK("expire done status=%d", status);
@@ -482,10 +482,10 @@ int autofs4_expire_wait(struct dentry *dentry)
}
/* Perform an expiry operation */
-int autofs4_expire_run(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi,
- struct autofs_packet_expire __user *pkt_p)
+int autofs_expire_run(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi,
+ struct autofs_packet_expire __user *pkt_p)
{
struct autofs_packet_expire pkt;
struct autofs_info *ino;
@@ -497,7 +497,7 @@ int autofs4_expire_run(struct super_block *sb,
pkt.hdr.proto_version = sbi->version;
pkt.hdr.type = autofs_ptype_expire;
- if ((dentry = autofs4_expire_indirect(sb, mnt, sbi, 0)) == NULL)
+ if ((dentry = autofs_expire_indirect(sb, mnt, sbi, 0)) == NULL)
return -EAGAIN;
pkt.len = dentry->d_name.len;
@@ -509,7 +509,7 @@ int autofs4_expire_run(struct super_block *sb,
ret = -EFAULT;
spin_lock(&sbi->fs_lock);
- ino = autofs4_dentry_ino(dentry);
+ ino = autofs_dentry_ino(dentry);
ino->flags &= ~AUTOFS_INF_EXPIRING;
complete_all(&ino->expire_complete);
spin_unlock(&sbi->fs_lock);
@@ -517,23 +517,23 @@ int autofs4_expire_run(struct super_block *sb,
return ret;
}
-int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int when)
+int autofs_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int when)
{
struct dentry *dentry;
int ret = -EAGAIN;
if (autofs_type_trigger(sbi->type))
- dentry = autofs4_expire_direct(sb, mnt, sbi, when);
+ dentry = autofs_expire_direct(sb, mnt, sbi, when);
else
- dentry = autofs4_expire_indirect(sb, mnt, sbi, when);
+ dentry = autofs_expire_indirect(sb, mnt, sbi, when);
if (dentry) {
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
/* This is synchronous because it makes the daemon a
little easier */
- ret = autofs4_wait(sbi, dentry, NFY_EXPIRE);
+ ret = autofs_wait(sbi, dentry, NFY_EXPIRE);
spin_lock(&sbi->fs_lock);
ino->flags &= ~AUTOFS_INF_EXPIRING;
@@ -549,7 +549,7 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
* Call repeatedly until it returns -EAGAIN, meaning there's nothing
* more to be done.
*/
-int autofs4_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+int autofs_expire_multi(struct super_block *sb, struct vfsmount *mnt,
struct autofs_sb_info *sbi, int __user *arg)
{
int do_now = 0;
@@ -557,6 +557,6 @@ int autofs4_expire_multi(struct super_block *sb, struct vfsmount *mnt,
if (arg && get_user(do_now, arg))
return -EFAULT;
- return autofs4_do_expire_multi(sb, mnt, sbi, do_now);
+ return autofs_do_expire_multi(sb, mnt, sbi, do_now);
}
diff --git a/fs/autofs4/init.c b/fs/autofs4/init.c
index 5a66322..51232a9 100644
--- a/fs/autofs4/init.c
+++ b/fs/autofs4/init.c
@@ -14,18 +14,18 @@
static struct dentry *autofs_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
- return mount_nodev(fs_type, flags, data, autofs4_fill_super);
+ return mount_nodev(fs_type, flags, data, autofs_fill_super);
}
static struct file_system_type autofs_fs_type = {
.owner = THIS_MODULE,
.name = "autofs",
.mount = autofs_mount,
- .kill_sb = autofs4_kill_sb,
+ .kill_sb = autofs_kill_sb,
};
MODULE_ALIAS_FS("autofs");
-static int __init init_autofs4_fs(void)
+static int __init init_autofs_fs(void)
{
int err;
@@ -38,12 +38,12 @@ static int __init init_autofs4_fs(void)
return err;
}
-static void __exit exit_autofs4_fs(void)
+static void __exit exit_autofs_fs(void)
{
autofs_dev_ioctl_exit();
unregister_filesystem(&autofs_fs_type);
}
-module_init(init_autofs4_fs)
-module_exit(exit_autofs4_fs)
+module_init(init_autofs_fs)
+module_exit(exit_autofs_fs)
MODULE_LICENSE("GPL");
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index eafdf6e..543389c 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -19,7 +19,7 @@
#include "autofs_i.h"
#include <linux/module.h>
-struct autofs_info *autofs4_new_ino(struct autofs_sb_info *sbi)
+struct autofs_info *autofs_new_ino(struct autofs_sb_info *sbi)
{
struct autofs_info *ino = kzalloc(sizeof(*ino), GFP_KERNEL);
if (ino) {
@@ -31,21 +31,21 @@ struct autofs_info *autofs4_new_ino(struct autofs_sb_info *sbi)
return ino;
}
-void autofs4_clean_ino(struct autofs_info *ino)
+void autofs_clean_ino(struct autofs_info *ino)
{
ino->uid = GLOBAL_ROOT_UID;
ino->gid = GLOBAL_ROOT_GID;
ino->last_used = jiffies;
}
-void autofs4_free_ino(struct autofs_info *ino)
+void autofs_free_ino(struct autofs_info *ino)
{
kfree(ino);
}
-void autofs4_kill_sb(struct super_block *sb)
+void autofs_kill_sb(struct super_block *sb)
{
- struct autofs_sb_info *sbi = autofs4_sbi(sb);
+ struct autofs_sb_info *sbi = autofs_sbi(sb);
/*
* In the event of a failure in get_sb_nodev the superblock
@@ -57,7 +57,7 @@ void autofs4_kill_sb(struct super_block *sb)
goto out_kill_sb;
/* Free wait queues, close pipe */
- autofs4_catatonic_mode(sbi);
+ autofs_catatonic_mode(sbi);
put_pid(sbi->oz_pgrp);
@@ -69,9 +69,9 @@ out_kill_sb:
kill_litter_super(sb);
}
-static int autofs4_show_options(struct seq_file *m, struct dentry *root)
+static int autofs_show_options(struct seq_file *m, struct dentry *root)
{
- struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
struct inode *root_inode = root->d_sb->s_root->d_inode;
if (!sbi)
@@ -99,16 +99,16 @@ static int autofs4_show_options(struct seq_file *m, struct dentry *root)
return 0;
}
-static void autofs4_evict_inode(struct inode *inode)
+static void autofs_evict_inode(struct inode *inode)
{
clear_inode(inode);
kfree(inode->i_private);
}
-static const struct super_operations autofs4_sops = {
+static const struct super_operations autofs_sops = {
.statfs = simple_statfs,
- .show_options = autofs4_show_options,
- .evict_inode = autofs4_evict_inode,
+ .show_options = autofs_show_options,
+ .evict_inode = autofs_evict_inode,
};
enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto,
@@ -203,7 +203,7 @@ static int parse_options(char *options, int *pipefd, kuid_t *uid, kgid_t *gid,
return (*pipefd < 0);
}
-int autofs4_fill_super(struct super_block *s, void *data, int silent)
+int autofs_fill_super(struct super_block *s, void *data, int silent)
{
struct inode * root_inode;
struct dentry * root;
@@ -242,17 +242,17 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
s->s_blocksize = 1024;
s->s_blocksize_bits = 10;
s->s_magic = AUTOFS_SUPER_MAGIC;
- s->s_op = &autofs4_sops;
- s->s_d_op = &autofs4_dentry_operations;
+ s->s_op = &autofs_sops;
+ s->s_d_op = &autofs_dentry_operations;
s->s_time_gran = 1;
/*
* Get the root inode and dentry, but defer checking for errors.
*/
- ino = autofs4_new_ino(sbi);
+ ino = autofs_new_ino(sbi);
if (!ino)
goto fail_free;
- root_inode = autofs4_get_inode(s, S_IFDIR | 0755);
+ root_inode = autofs_get_inode(s, S_IFDIR | 0755);
root = d_make_root(root_inode);
if (!root)
goto fail_ino;
@@ -282,8 +282,8 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
if (autofs_type_trigger(sbi->type))
__managed_dentry_set_managed(root);
- root_inode->i_fop = &autofs4_root_operations;
- root_inode->i_op = &autofs4_dir_inode_operations;
+ root_inode->i_fop = &autofs_root_operations;
+ root_inode->i_op = &autofs_dir_inode_operations;
/* Couldn't this be tested earlier? */
if (sbi->max_proto < AUTOFS_MIN_PROTO_VERSION ||
@@ -341,7 +341,7 @@ fail_unlock:
return -EINVAL;
}
-struct inode *autofs4_get_inode(struct super_block *sb, umode_t mode)
+struct inode *autofs_get_inode(struct super_block *sb, umode_t mode)
{
struct inode *inode = new_inode(sb);
@@ -358,10 +358,10 @@ struct inode *autofs4_get_inode(struct super_block *sb, umode_t mode)
if (S_ISDIR(mode)) {
set_nlink(inode, 2);
- inode->i_op = &autofs4_dir_inode_operations;
- inode->i_fop = &autofs4_dir_operations;
+ inode->i_op = &autofs_dir_inode_operations;
+ inode->i_fop = &autofs_dir_operations;
} else if (S_ISLNK(mode)) {
- inode->i_op = &autofs4_symlink_inode_operations;
+ inode->i_op = &autofs_symlink_inode_operations;
}
return inode;
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index a5b3825..4b64d07 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -20,58 +20,58 @@
#include "autofs_i.h"
-static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
-static int autofs4_dir_unlink(struct inode *,struct dentry *);
-static int autofs4_dir_rmdir(struct inode *,struct dentry *);
-static int autofs4_dir_mkdir(struct inode *,struct dentry *,umode_t);
-static long autofs4_root_ioctl(struct file *,unsigned int,unsigned long);
+static int autofs_dir_symlink(struct inode *,struct dentry *,const char *);
+static int autofs_dir_unlink(struct inode *,struct dentry *);
+static int autofs_dir_rmdir(struct inode *,struct dentry *);
+static int autofs_dir_mkdir(struct inode *,struct dentry *,umode_t);
+static long autofs_root_ioctl(struct file *,unsigned int,unsigned long);
#ifdef CONFIG_COMPAT
-static long autofs4_root_compat_ioctl(struct file *,unsigned int,unsigned long);
+static long autofs_root_compat_ioctl(struct file *,unsigned int,unsigned long);
#endif
-static int autofs4_dir_open(struct inode *inode, struct file *file);
-static struct dentry *autofs4_lookup(struct inode *,struct dentry *, unsigned int);
-static struct vfsmount *autofs4_d_automount(struct path *);
-static int autofs4_d_manage(struct dentry *, bool);
-static void autofs4_dentry_release(struct dentry *);
+static int autofs_dir_open(struct inode *inode, struct file *file);
+static struct dentry *autofs_lookup(struct inode *,struct dentry *, unsigned int);
+static struct vfsmount *autofs_d_automount(struct path *);
+static int autofs_d_manage(struct dentry *, bool);
+static void autofs_dentry_release(struct dentry *);
-const struct file_operations autofs4_root_operations = {
+const struct file_operations autofs_root_operations = {
.open = dcache_dir_open,
.release = dcache_dir_close,
.read = generic_read_dir,
.iterate = dcache_readdir,
.llseek = dcache_dir_lseek,
- .unlocked_ioctl = autofs4_root_ioctl,
+ .unlocked_ioctl = autofs_root_ioctl,
#ifdef CONFIG_COMPAT
- .compat_ioctl = autofs4_root_compat_ioctl,
+ .compat_ioctl = autofs_root_compat_ioctl,
#endif
};
-const struct file_operations autofs4_dir_operations = {
- .open = autofs4_dir_open,
+const struct file_operations autofs_dir_operations = {
+ .open = autofs_dir_open,
.release = dcache_dir_close,
.read = generic_read_dir,
.iterate = dcache_readdir,
.llseek = dcache_dir_lseek,
};
-const struct inode_operations autofs4_dir_inode_operations = {
- .lookup = autofs4_lookup,
- .unlink = autofs4_dir_unlink,
- .symlink = autofs4_dir_symlink,
- .mkdir = autofs4_dir_mkdir,
- .rmdir = autofs4_dir_rmdir,
+const struct inode_operations autofs_dir_inode_operations = {
+ .lookup = autofs_lookup,
+ .unlink = autofs_dir_unlink,
+ .symlink = autofs_dir_symlink,
+ .mkdir = autofs_dir_mkdir,
+ .rmdir = autofs_dir_rmdir,
};
-const struct dentry_operations autofs4_dentry_operations = {
- .d_automount = autofs4_d_automount,
- .d_manage = autofs4_d_manage,
- .d_release = autofs4_dentry_release,
+const struct dentry_operations autofs_dentry_operations = {
+ .d_automount = autofs_d_automount,
+ .d_manage = autofs_d_manage,
+ .d_release = autofs_dentry_release,
};
-static void autofs4_add_active(struct dentry *dentry)
+static void autofs_add_active(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
if (!ino->active_count) {
@@ -84,10 +84,10 @@ static void autofs4_add_active(struct dentry *dentry)
return;
}
-static void autofs4_del_active(struct dentry *dentry)
+static void autofs_del_active(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
ino->active_count--;
@@ -100,15 +100,15 @@ static void autofs4_del_active(struct dentry *dentry)
return;
}
-static int autofs4_dir_open(struct inode *inode, struct file *file)
+static int autofs_dir_open(struct inode *inode, struct file *file)
{
struct dentry *dentry = file->f_path.dentry;
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
DPRINTK("file=%p dentry=%p %.*s",
file, dentry, dentry->d_name.len, dentry->d_name.name);
- if (autofs4_oz_mode(sbi))
+ if (autofs_oz_mode(sbi))
goto out;
/*
@@ -131,10 +131,10 @@ out:
return dcache_dir_open(inode, file);
}
-static void autofs4_dentry_release(struct dentry *de)
+static void autofs_dentry_release(struct dentry *de)
{
- struct autofs_info *ino = autofs4_dentry_ino(de);
- struct autofs_sb_info *sbi = autofs4_sbi(de->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(de);
+ struct autofs_sb_info *sbi = autofs_sbi(de->d_sb);
DPRINTK("releasing %p", de);
@@ -150,12 +150,12 @@ static void autofs4_dentry_release(struct dentry *de)
spin_unlock(&sbi->lookup_lock);
}
- autofs4_free_ino(ino);
+ autofs_free_ino(ino);
}
-static struct dentry *autofs4_lookup_active(struct dentry *dentry)
+static struct dentry *autofs_lookup_active(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
struct dentry *parent = dentry->d_parent;
struct qstr *name = &dentry->d_name;
unsigned int len = name->len;
@@ -205,9 +205,9 @@ next:
return NULL;
}
-static struct dentry *autofs4_lookup_expiring(struct dentry *dentry)
+static struct dentry *autofs_lookup_expiring(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
struct dentry *parent = dentry->d_parent;
struct qstr *name = &dentry->d_name;
unsigned int len = name->len;
@@ -257,16 +257,16 @@ next:
return NULL;
}
-static int autofs4_mount_wait(struct dentry *dentry)
+static int autofs_mount_wait(struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
int status = 0;
if (ino->flags & AUTOFS_INF_PENDING) {
DPRINTK("waiting for mount name=%.*s",
dentry->d_name.len, dentry->d_name.name);
- status = autofs4_wait(sbi, dentry, NFY_MOUNT);
+ status = autofs_wait(sbi, dentry, NFY_MOUNT);
DPRINTK("mount wait done status=%d", status);
}
ino->last_used = jiffies;
@@ -277,26 +277,26 @@ static int do_expire_wait(struct dentry *dentry)
{
struct dentry *expiring;
- expiring = autofs4_lookup_expiring(dentry);
+ expiring = autofs_lookup_expiring(dentry);
if (!expiring)
- return autofs4_expire_wait(dentry);
+ return autofs_expire_wait(dentry);
else {
/*
* If we are racing with expire the request might not
* be quite complete, but the directory has been removed
* so it must have been successful, just wait for it.
*/
- autofs4_expire_wait(expiring);
- autofs4_del_expiring(expiring);
+ autofs_expire_wait(expiring);
+ autofs_del_expiring(expiring);
dput(expiring);
}
return 0;
}
-static struct dentry *autofs4_mountpoint_changed(struct path *path)
+static struct dentry *autofs_mountpoint_changed(struct path *path)
{
struct dentry *dentry = path->dentry;
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
/*
* If this is an indirect mount the dentry could have gone away
@@ -308,7 +308,7 @@ static struct dentry *autofs4_mountpoint_changed(struct path *path)
struct dentry *new = d_lookup(parent, &dentry->d_name);
if (!new)
return NULL;
- ino = autofs4_dentry_ino(new);
+ ino = autofs_dentry_ino(new);
ino->last_used = jiffies;
dput(path->dentry);
path->dentry = new;
@@ -316,18 +316,18 @@ static struct dentry *autofs4_mountpoint_changed(struct path *path)
return path->dentry;
}
-static struct vfsmount *autofs4_d_automount(struct path *path)
+static struct vfsmount *autofs_d_automount(struct path *path)
{
struct dentry *dentry = path->dentry;
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
int status;
DPRINTK("dentry=%p %.*s",
dentry, dentry->d_name.len, dentry->d_name.name);
/* The daemon never triggers a mount. */
- if (autofs4_oz_mode(sbi))
+ if (autofs_oz_mode(sbi))
return NULL;
/*
@@ -346,7 +346,7 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
spin_lock(&sbi->fs_lock);
if (ino->flags & AUTOFS_INF_PENDING) {
spin_unlock(&sbi->fs_lock);
- status = autofs4_mount_wait(dentry);
+ status = autofs_mount_wait(dentry);
if (status)
return ERR_PTR(status);
goto done;
@@ -387,7 +387,7 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
}
ino->flags |= AUTOFS_INF_PENDING;
spin_unlock(&sbi->fs_lock);
- status = autofs4_mount_wait(dentry);
+ status = autofs_mount_wait(dentry);
spin_lock(&sbi->fs_lock);
ino->flags &= ~AUTOFS_INF_PENDING;
if (status) {
@@ -398,24 +398,24 @@ static struct vfsmount *autofs4_d_automount(struct path *path)
spin_unlock(&sbi->fs_lock);
done:
/* Mount succeeded, check if we ended up with a new dentry */
- dentry = autofs4_mountpoint_changed(path);
+ dentry = autofs_mountpoint_changed(path);
if (!dentry)
return ERR_PTR(-ENOENT);
return NULL;
}
-static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
+static int autofs_d_manage(struct dentry *dentry, bool rcu_walk)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
int status;
DPRINTK("dentry=%p %.*s",
dentry, dentry->d_name.len, dentry->d_name.name);
/* The daemon never waits. */
- if (autofs4_oz_mode(sbi)) {
+ if (autofs_oz_mode(sbi)) {
if (rcu_walk)
return 0;
if (!d_mountpoint(dentry))
@@ -434,7 +434,7 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
* This dentry may be under construction so wait on mount
* completion.
*/
- status = autofs4_mount_wait(dentry);
+ status = autofs_mount_wait(dentry);
if (status)
return status;
@@ -463,7 +463,7 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
}
/* Lookups in the root directory */
-static struct dentry *autofs4_lookup(struct inode *dir,
+static struct dentry *autofs_lookup(struct inode *dir,
struct dentry *dentry, unsigned int flags)
{
struct autofs_sb_info *sbi;
@@ -476,13 +476,13 @@ static struct dentry *autofs4_lookup(struct inode *dir,
if (dentry->d_name.len > NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
- sbi = autofs4_sbi(dir->i_sb);
+ sbi = autofs_sbi(dir->i_sb);
DPRINTK("pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d",
current->pid, task_pgrp_nr(current), sbi->catatonic,
- autofs4_oz_mode(sbi));
+ autofs_oz_mode(sbi));
- active = autofs4_lookup_active(dentry);
+ active = autofs_lookup_active(dentry);
if (active) {
return active;
} else {
@@ -492,33 +492,33 @@ static struct dentry *autofs4_lookup(struct inode *dir,
* can return fail immediately. The daemon however does need
* to create directories within the file system.
*/
- if (!autofs4_oz_mode(sbi) && !IS_ROOT(dentry->d_parent))
+ if (!autofs_oz_mode(sbi) && !IS_ROOT(dentry->d_parent))
return ERR_PTR(-ENOENT);
/* Mark entries in the root as mount triggers */
if (autofs_type_indirect(sbi->type) && IS_ROOT(dentry->d_parent))
__managed_dentry_set_managed(dentry);
- ino = autofs4_new_ino(sbi);
+ ino = autofs_new_ino(sbi);
if (!ino)
return ERR_PTR(-ENOMEM);
dentry->d_fsdata = ino;
ino->dentry = dentry;
- autofs4_add_active(dentry);
+ autofs_add_active(dentry);
d_instantiate(dentry, NULL);
}
return NULL;
}
-static int autofs4_dir_symlink(struct inode *dir,
+static int autofs_dir_symlink(struct inode *dir,
struct dentry *dentry,
const char *symname)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
struct autofs_info *p_ino;
struct inode *inode;
size_t size = strlen(symname);
@@ -527,14 +527,14 @@ static int autofs4_dir_symlink(struct inode *dir,
DPRINTK("%s <- %.*s", symname,
dentry->d_name.len, dentry->d_name.name);
- if (!autofs4_oz_mode(sbi))
+ if (!autofs_oz_mode(sbi))
return -EACCES;
BUG_ON(!ino);
- autofs4_clean_ino(ino);
+ autofs_clean_ino(ino);
- autofs4_del_active(dentry);
+ autofs_del_active(dentry);
cp = kmalloc(size + 1, GFP_KERNEL);
if (!cp)
@@ -542,7 +542,7 @@ static int autofs4_dir_symlink(struct inode *dir,
strcpy(cp, symname);
- inode = autofs4_get_inode(dir->i_sb, S_IFLNK | 0555);
+ inode = autofs_get_inode(dir->i_sb, S_IFLNK | 0555);
if (!inode) {
kfree(cp);
if (!dentry->d_fsdata)
@@ -555,7 +555,7 @@ static int autofs4_dir_symlink(struct inode *dir,
dget(dentry);
atomic_inc(&ino->count);
- p_ino = autofs4_dentry_ino(dentry->d_parent);
+ p_ino = autofs_dentry_ino(dentry->d_parent);
if (p_ino && dentry->d_parent != dentry)
atomic_inc(&p_ino->count);
@@ -577,20 +577,20 @@ static int autofs4_dir_symlink(struct inode *dir,
* If a process is blocked on the dentry waiting for the expire to finish,
* it will invalidate the dentry and try to mount with a new one.
*
- * Also see autofs4_dir_rmdir()..
+ * Also see autofs_dir_rmdir()..
*/
-static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
+static int autofs_dir_unlink(struct inode *dir, struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
struct autofs_info *p_ino;
/* This allows root to remove symlinks */
- if (!autofs4_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
+ if (!autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
return -EPERM;
if (atomic_dec_and_test(&ino->count)) {
- p_ino = autofs4_dentry_ino(dentry->d_parent);
+ p_ino = autofs_dentry_ino(dentry->d_parent);
if (p_ino && dentry->d_parent != dentry)
atomic_dec(&p_ino->count);
}
@@ -602,7 +602,7 @@ static int autofs4_dir_unlink(struct inode *dir, struct dentry *dentry)
dir->i_mtime = CURRENT_TIME;
spin_lock(&sbi->lookup_lock);
- __autofs4_add_expiring(dentry);
+ __autofs_add_expiring(dentry);
d_drop(dentry);
spin_unlock(&sbi->lookup_lock);
@@ -661,16 +661,16 @@ static void autofs_clear_leaf_automount_flags(struct dentry *dentry)
return;
}
-static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
+static int autofs_dir_rmdir(struct inode *dir, struct dentry *dentry)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
struct autofs_info *p_ino;
DPRINTK("dentry %p, removing %.*s",
dentry, dentry->d_name.len, dentry->d_name.name);
- if (!autofs4_oz_mode(sbi))
+ if (!autofs_oz_mode(sbi))
return -EACCES;
spin_lock(&sbi->lookup_lock);
@@ -678,7 +678,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
spin_unlock(&sbi->lookup_lock);
return -ENOTEMPTY;
}
- __autofs4_add_expiring(dentry);
+ __autofs_add_expiring(dentry);
d_drop(dentry);
spin_unlock(&sbi->lookup_lock);
@@ -686,7 +686,7 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
autofs_clear_leaf_automount_flags(dentry);
if (atomic_dec_and_test(&ino->count)) {
- p_ino = autofs4_dentry_ino(dentry->d_parent);
+ p_ino = autofs_dentry_ino(dentry->d_parent);
if (p_ino && dentry->d_parent != dentry)
atomic_dec(&p_ino->count);
}
@@ -700,14 +700,14 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
return 0;
}
-static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
+static int autofs_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
{
- struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
- struct autofs_info *ino = autofs4_dentry_ino(dentry);
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
struct autofs_info *p_ino;
struct inode *inode;
- if (!autofs4_oz_mode(sbi))
+ if (!autofs_oz_mode(sbi))
return -EACCES;
DPRINTK("dentry %p, creating %.*s",
@@ -715,11 +715,11 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t m
BUG_ON(!ino);
- autofs4_clean_ino(ino);
+ autofs_clean_ino(ino);
- autofs4_del_active(dentry);
+ autofs_del_active(dentry);
- inode = autofs4_get_inode(dir->i_sb, S_IFDIR | 0555);
+ inode = autofs_get_inode(dir->i_sb, S_IFDIR | 0555);
if (!inode)
return -ENOMEM;
d_add(dentry, inode);
@@ -729,7 +729,7 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t m
dget(dentry);
atomic_inc(&ino->count);
- p_ino = autofs4_dentry_ino(dentry->d_parent);
+ p_ino = autofs_dentry_ino(dentry->d_parent);
if (p_ino && dentry->d_parent != dentry)
atomic_inc(&p_ino->count);
inc_nlink(dir);
@@ -740,7 +740,7 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t m
/* Get/set timeout ioctl() operation */
#ifdef CONFIG_COMPAT
-static inline int autofs4_compat_get_set_timeout(struct autofs_sb_info *sbi,
+static inline int autofs_compat_get_set_timeout(struct autofs_sb_info *sbi,
compat_ulong_t __user *p)
{
int rv;
@@ -759,7 +759,7 @@ static inline int autofs4_compat_get_set_timeout(struct autofs_sb_info *sbi,
}
#endif
-static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
+static inline int autofs_get_set_timeout(struct autofs_sb_info *sbi,
unsigned long __user *p)
{
int rv;
@@ -778,14 +778,14 @@ static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
}
/* Return protocol version */
-static inline int autofs4_get_protover(struct autofs_sb_info *sbi,
+static inline int autofs_get_protover(struct autofs_sb_info *sbi,
int __user *p)
{
return put_user(sbi->version, p);
}
/* Return protocol sub version */
-static inline int autofs4_get_protosubver(struct autofs_sb_info *sbi,
+static inline int autofs_get_protosubver(struct autofs_sb_info *sbi,
int __user *p)
{
return put_user(sbi->sub_version, p);
@@ -794,7 +794,7 @@ static inline int autofs4_get_protosubver(struct autofs_sb_info *sbi,
/*
* Tells the daemon whether it can umount the autofs mount.
*/
-static inline int autofs4_ask_umount(struct vfsmount *mnt, int __user *p)
+static inline int autofs_ask_umount(struct vfsmount *mnt, int __user *p)
{
int status = 0;
@@ -808,14 +808,14 @@ static inline int autofs4_ask_umount(struct vfsmount *mnt, int __user *p)
return status;
}
-/* Identify autofs4_dentries - this is so we can tell if there's
+/* Identify autofs_dentries - this is so we can tell if there's
an extra dentry refcount or not. We only hold a refcount on the
dentry if its non-negative (ie, d_inode != NULL)
*/
-int is_autofs4_dentry(struct dentry *dentry)
+int is_autofs_dentry(struct dentry *dentry)
{
return dentry && dentry->d_inode &&
- dentry->d_op == &autofs4_dentry_operations &&
+ dentry->d_op == &autofs_dentry_operations &&
dentry->d_fsdata != NULL;
}
@@ -823,10 +823,10 @@ int is_autofs4_dentry(struct dentry *dentry)
* ioctl()'s on the root directory is the chief method for the daemon to
* generate kernel reactions
*/
-static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp,
+static int autofs_root_ioctl_unlocked(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
- struct autofs_sb_info *sbi = autofs4_sbi(inode->i_sb);
+ struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
void __user *p = (void __user *)arg;
DPRINTK("cmd = 0x%08x, arg = 0x%08lx, sbi = %p, pgrp = %u",
@@ -836,61 +836,61 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp,
_IOC_NR(cmd) - _IOC_NR(AUTOFS_IOC_FIRST) >= AUTOFS_IOC_COUNT)
return -ENOTTY;
- if (!autofs4_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
+ if (!autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
return -EPERM;
switch(cmd) {
case AUTOFS_IOC_READY: /* Wait queue: go ahead and retry */
- return autofs4_wait_release(sbi,(autofs_wqt_t)arg,0);
+ return autofs_wait_release(sbi,(autofs_wqt_t)arg,0);
case AUTOFS_IOC_FAIL: /* Wait queue: fail with ENOENT */
- return autofs4_wait_release(sbi,(autofs_wqt_t)arg,-ENOENT);
+ return autofs_wait_release(sbi,(autofs_wqt_t)arg,-ENOENT);
case AUTOFS_IOC_CATATONIC: /* Enter catatonic mode (daemon shutdown) */
- autofs4_catatonic_mode(sbi);
+ autofs_catatonic_mode(sbi);
return 0;
case AUTOFS_IOC_PROTOVER: /* Get protocol version */
- return autofs4_get_protover(sbi, p);
+ return autofs_get_protover(sbi, p);
case AUTOFS_IOC_PROTOSUBVER: /* Get protocol sub version */
- return autofs4_get_protosubver(sbi, p);
+ return autofs_get_protosubver(sbi, p);
case AUTOFS_IOC_SETTIMEOUT:
- return autofs4_get_set_timeout(sbi, p);
+ return autofs_get_set_timeout(sbi, p);
#ifdef CONFIG_COMPAT
case AUTOFS_IOC_SETTIMEOUT32:
- return autofs4_compat_get_set_timeout(sbi, p);
+ return autofs_compat_get_set_timeout(sbi, p);
#endif
case AUTOFS_IOC_ASKUMOUNT:
- return autofs4_ask_umount(filp->f_path.mnt, p);
+ return autofs_ask_umount(filp->f_path.mnt, p);
/* return a single thing to expire */
case AUTOFS_IOC_EXPIRE:
- return autofs4_expire_run(inode->i_sb,filp->f_path.mnt,sbi, p);
+ return autofs_expire_run(inode->i_sb,filp->f_path.mnt,sbi, p);
/* same as above, but can send multiple expires through pipe */
case AUTOFS_IOC_EXPIRE_MULTI:
- return autofs4_expire_multi(inode->i_sb,filp->f_path.mnt,sbi, p);
+ return autofs_expire_multi(inode->i_sb,filp->f_path.mnt,sbi, p);
default:
return -ENOSYS;
}
}
-static long autofs4_root_ioctl(struct file *filp,
+static long autofs_root_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct inode *inode = file_inode(filp);
- return autofs4_root_ioctl_unlocked(inode, filp, cmd, arg);
+ return autofs_root_ioctl_unlocked(inode, filp, cmd, arg);
}
#ifdef CONFIG_COMPAT
-static long autofs4_root_compat_ioctl(struct file *filp,
+static long autofs_root_compat_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct inode *inode = file_inode(filp);
int ret;
if (cmd == AUTOFS_IOC_READY || cmd == AUTOFS_IOC_FAIL)
- ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg);
+ ret = autofs_root_ioctl_unlocked(inode, filp, cmd, arg);
else
- ret = autofs4_root_ioctl_unlocked(inode, filp, cmd,
+ ret = autofs_root_ioctl_unlocked(inode, filp, cmd,
(unsigned long) compat_ptr(arg));
return ret;
diff --git a/fs/autofs4/symlink.c b/fs/autofs4/symlink.c
index 063b240..9d728bf 100644
--- a/fs/autofs4/symlink.c
+++ b/fs/autofs4/symlink.c
@@ -9,13 +9,13 @@
#include "autofs_i.h"
-static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)
+static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
nd_set_link(nd, dentry->d_inode->i_private);
return NULL;
}
-const struct inode_operations autofs4_symlink_inode_operations = {
+const struct inode_operations autofs_symlink_inode_operations = {
.readlink = generic_readlink,
- .follow_link = autofs4_follow_link
+ .follow_link = autofs_follow_link
};
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index f1fb9d7..1725e3f 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -16,12 +16,12 @@
/* We make this a static variable rather than a part of the superblock; it
is better if we don't reassign numbers easily even across filesystems */
-static autofs_wqt_t autofs4_next_wait_queue = 1;
+static autofs_wqt_t autofs_next_wait_queue = 1;
/* These are the signals we allow interrupting a pending mount */
#define SHUTDOWN_SIGS (sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGQUIT))
-void autofs4_catatonic_mode(struct autofs_sb_info *sbi)
+void autofs_catatonic_mode(struct autofs_sb_info *sbi)
{
struct autofs_wait_queue *wq, *nwq;
@@ -51,8 +51,8 @@ void autofs4_catatonic_mode(struct autofs_sb_info *sbi)
mutex_unlock(&sbi->wq_mutex);
}
-static int autofs4_write(struct autofs_sb_info *sbi,
- struct file *file, const void *addr, int bytes)
+static int autofs_write(struct autofs_sb_info *sbi,
+ struct file *file, const void *addr, int bytes)
{
unsigned long sigpipe, flags;
mm_segment_t fs;
@@ -87,7 +87,7 @@ static int autofs4_write(struct autofs_sb_info *sbi,
return (bytes > 0);
}
-static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
+static void autofs_notify_daemon(struct autofs_sb_info *sbi,
struct autofs_wait_queue *wq,
int type)
{
@@ -167,7 +167,7 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
break;
}
default:
- printk("autofs4_notify_daemon: bad type %d!\n", type);
+ printk("autofs_notify_daemon: bad type %d!\n", type);
mutex_unlock(&sbi->wq_mutex);
return;
}
@@ -176,13 +176,13 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
mutex_unlock(&sbi->wq_mutex);
- if (autofs4_write(sbi, pipe, &pkt, pktsz))
- autofs4_catatonic_mode(sbi);
+ if (autofs_write(sbi, pipe, &pkt, pktsz))
+ autofs_catatonic_mode(sbi);
fput(pipe);
}
-static int autofs4_getpath(struct autofs_sb_info *sbi,
- struct dentry *dentry, char **name)
+static int autofs_getpath(struct autofs_sb_info *sbi,
+ struct dentry *dentry, char **name)
{
struct dentry *root = sbi->sb->s_root;
struct dentry *tmp;
@@ -227,7 +227,7 @@ rename_retry:
}
static struct autofs_wait_queue *
-autofs4_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
+autofs_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
{
struct autofs_wait_queue *wq;
@@ -261,7 +261,7 @@ static int validate_request(struct autofs_wait_queue **wait,
return -ENOENT;
/* Wait in progress, continue; */
- wq = autofs4_find_wait(sbi, qstr);
+ wq = autofs_find_wait(sbi, qstr);
if (wq) {
*wait = wq;
return 1;
@@ -270,7 +270,7 @@ static int validate_request(struct autofs_wait_queue **wait,
*wait = NULL;
/* If we don't yet have any info this is a new request */
- ino = autofs4_dentry_ino(dentry);
+ ino = autofs_dentry_ino(dentry);
if (!ino)
return 1;
@@ -295,7 +295,7 @@ static int validate_request(struct autofs_wait_queue **wait,
if (sbi->catatonic)
return -ENOENT;
- wq = autofs4_find_wait(sbi, qstr);
+ wq = autofs_find_wait(sbi, qstr);
if (wq) {
*wait = wq;
return 1;
@@ -344,8 +344,8 @@ static int validate_request(struct autofs_wait_queue **wait,
return 1;
}
-int autofs4_wait(struct autofs_sb_info *sbi,
- struct dentry *dentry, enum autofs_notify notify)
+int autofs_wait(struct autofs_sb_info *sbi,
+ struct dentry *dentry, enum autofs_notify notify)
{
struct autofs_wait_queue *wq;
struct qstr qstr;
@@ -391,7 +391,7 @@ int autofs4_wait(struct autofs_sb_info *sbi,
if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
qstr.len = sprintf(name, "%p", dentry);
else {
- qstr.len = autofs4_getpath(sbi, dentry, &name);
+ qstr.len = autofs_getpath(sbi, dentry, &name);
if (!qstr.len) {
kfree(name);
return -ENOENT;
@@ -422,15 +422,15 @@ int autofs4_wait(struct autofs_sb_info *sbi,
return -ENOMEM;
}
- wq->wait_queue_token = autofs4_next_wait_queue;
- if (++autofs4_next_wait_queue == 0)
- autofs4_next_wait_queue = 1;
+ wq->wait_queue_token = autofs_next_wait_queue;
+ if (++autofs_next_wait_queue == 0)
+ autofs_next_wait_queue = 1;
wq->next = sbi->queues;
sbi->queues = wq;
init_waitqueue_head(&wq->queue);
memcpy(&wq->name, &qstr, sizeof(struct qstr));
- wq->dev = autofs4_get_dev(sbi);
- wq->ino = autofs4_get_ino(sbi);
+ wq->dev = autofs_get_dev(sbi);
+ wq->ino = autofs_get_ino(sbi);
wq->uid = current_uid();
wq->gid = current_gid();
wq->pid = pid;
@@ -459,8 +459,8 @@ int autofs4_wait(struct autofs_sb_info *sbi,
(unsigned long) wq->wait_queue_token, wq->name.len,
wq->name.name, notify);
- /* autofs4_notify_daemon() may block */
- autofs4_notify_daemon(sbi, wq, type);
+ /* autofs_notify_daemon() may block */
+ autofs_notify_daemon(sbi, wq, type);
} else {
wq->wait_ctr++;
mutex_unlock(&sbi->wq_mutex);
@@ -511,12 +511,12 @@ int autofs4_wait(struct autofs_sb_info *sbi,
struct dentry *de = NULL;
/* direct mount or browsable map */
- ino = autofs4_dentry_ino(dentry);
+ ino = autofs_dentry_ino(dentry);
if (!ino) {
/* If not lookup actual dentry used */
de = d_lookup(dentry->d_parent, &dentry->d_name);
if (de)
- ino = autofs4_dentry_ino(de);
+ ino = autofs_dentry_ino(de);
}
/* Set mount requester */
@@ -541,7 +541,8 @@ int autofs4_wait(struct autofs_sb_info *sbi,
}
-int autofs4_wait_release(struct autofs_sb_info *sbi, autofs_wqt_t wait_queue_token, int status)
+int autofs_wait_release(struct autofs_sb_info *sbi,
+ autofs_wqt_t wait_queue_token, int status)
{
struct autofs_wait_queue *wq, **wql;
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [RFC PATCH 6/7] autofs - rename module autofs4 to autofs
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
` (4 preceding siblings ...)
2013-07-01 3:14 ` [RFC PATCH 5/7] autofs - use autofs instead of autofs4 everywhere Ian Kent
@ 2013-07-01 3:14 ` Ian Kent
2013-07-01 3:14 ` [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS Ian Kent
6 siblings, 0 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
Rename autofs4 to autofs since is now the only module that provides the autofs
file system and the module is not version 4 specific.
Changes that will need to be made should be limited to:
- source include statments should be changed from autofs_fs4.h to autofs_fs.h
since these two header file have been merged.
- user space scripts that manually load autofs4.ko should be changed to load
autofs.ko. Since the module directory name and the module name itself are
the same now there is no need to manually load module.
- any "alias autofs autofs4" will need to be removed.
- configure AUTOFS_FS instead of AUTOFS4_FS from now on.
Signed-off-by: Ian Kent <raven@themaw.net>
---
MAINTAINERS | 4
fs/Kconfig | 1
fs/Makefile | 1
fs/autofs/Kconfig | 19 +
fs/autofs/Makefile | 7
fs/autofs/autofs_i.h | 341 ++++++++++++++++++
fs/autofs/dev-ioctl.c | 759 +++++++++++++++++++++++++++++++++++++++++
fs/autofs/expire.c | 561 ++++++++++++++++++++++++++++++
fs/autofs/init.c | 49 +++
fs/autofs/inode.c | 368 ++++++++++++++++++++
fs/autofs/root.c | 898 ++++++++++++++++++++++++++++++++++++++++++++++++
fs/autofs/symlink.c | 21 +
fs/autofs/waitq.c | 570 ++++++++++++++++++++++++++++++
fs/autofs4/Kconfig | 31 +-
fs/autofs4/Makefile | 10 -
fs/autofs4/autofs_i.h | 341 ------------------
fs/autofs4/dev-ioctl.c | 760 -----------------------------------------
fs/autofs4/expire.c | 562 ------------------------------
fs/autofs4/init.c | 49 ---
fs/autofs4/inode.c | 368 --------------------
fs/autofs4/root.c | 898 ------------------------------------------------
fs/autofs4/symlink.c | 21 -
fs/autofs4/waitq.c | 571 -------------------------------
23 files changed, 3627 insertions(+), 3583 deletions(-)
create mode 100644 fs/autofs/Kconfig
create mode 100644 fs/autofs/Makefile
create mode 100644 fs/autofs/autofs_i.h
create mode 100644 fs/autofs/dev-ioctl.c
create mode 100644 fs/autofs/expire.c
create mode 100644 fs/autofs/init.c
create mode 100644 fs/autofs/inode.c
create mode 100644 fs/autofs/root.c
create mode 100644 fs/autofs/symlink.c
create mode 100644 fs/autofs/waitq.c
delete mode 100644 fs/autofs4/autofs_i.h
delete mode 100644 fs/autofs4/dev-ioctl.c
delete mode 100644 fs/autofs4/expire.c
delete mode 100644 fs/autofs4/init.c
delete mode 100644 fs/autofs4/inode.c
delete mode 100644 fs/autofs4/root.c
delete mode 100644 fs/autofs4/symlink.c
delete mode 100644 fs/autofs4/waitq.c
diff --git a/MAINTAINERS b/MAINTAINERS
index bd30092..d83b551 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4679,11 +4679,11 @@ W: http://linuxtv.org
S: Maintained
F: drivers/media/radio/radio-keene*
-KERNEL AUTOMOUNTER v4 (AUTOFS4)
+KERNEL AUTOMOUNTER v4 (AUTOFS)
M: Ian Kent <raven@themaw.net>
L: autofs@vger.kernel.org
S: Maintained
-F: fs/autofs4/
+F: fs/autofs/
KERNEL BUILD + files below scripts/ (unless maintained elsewhere)
M: Michal Marek <mmarek@suse.cz>
diff --git a/fs/Kconfig b/fs/Kconfig
index c229f82..5c071f3 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -65,6 +65,7 @@ source "fs/notify/Kconfig"
source "fs/quota/Kconfig"
+source "fs/autofs/Kconfig"
source "fs/autofs4/Kconfig"
source "fs/fuse/Kconfig"
diff --git a/fs/Makefile b/fs/Makefile
index 4fe6df3..d433f30 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -102,6 +102,7 @@ obj-$(CONFIG_AFFS_FS) += affs/
obj-$(CONFIG_ROMFS_FS) += romfs/
obj-$(CONFIG_QNX4FS_FS) += qnx4/
obj-$(CONFIG_QNX6FS_FS) += qnx6/
+obj-$(CONFIG_AUTOFS_FS) += autofs/
obj-$(CONFIG_AUTOFS4_FS) += autofs4/
obj-$(CONFIG_ADFS_FS) += adfs/
obj-$(CONFIG_FUSE_FS) += fuse/
diff --git a/fs/autofs/Kconfig b/fs/autofs/Kconfig
new file mode 100644
index 0000000..99f5a05
--- /dev/null
+++ b/fs/autofs/Kconfig
@@ -0,0 +1,19 @@
+config AUTOFS_FS
+ tristate "Kernel automounter support (supports v3, v4 and v5)"
+ help
+ The automounter is a tool to automatically mount remote file systems
+ on demand. This implementation is partially kernel-based to reduce
+ overhead in the already-mounted case; this is unlike the BSD
+ automounter (amd), which is a pure user space daemon.
+
+ To use the automounter you need the user-space tools from
+ <ftp://ftp.kernel.org/pub/linux/daemons/autofs/>; you also want
+ to answer Y to "NFS file system support", below.
+
+ To compile this support as a module, choose M here: the module will be
+ called autofs.
+
+ If you are not a part of a fairly large, distributed network or
+ don't have a laptop which needs to dynamically reconfigure to the
+ local network, you probably do not need an automounter, and can say
+ N here.
diff --git a/fs/autofs/Makefile b/fs/autofs/Makefile
new file mode 100644
index 0000000..43fedde
--- /dev/null
+++ b/fs/autofs/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the linux autofs-filesystem routines.
+#
+
+obj-$(CONFIG_AUTOFS_FS) += autofs.o
+
+autofs-objs := init.o inode.o root.o symlink.o waitq.o expire.o dev-ioctl.o
diff --git a/fs/autofs/autofs_i.h b/fs/autofs/autofs_i.h
new file mode 100644
index 0000000..dcdd1d7
--- /dev/null
+++ b/fs/autofs/autofs_i.h
@@ -0,0 +1,341 @@
+/*
+ * Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
+ * Copyright 2005-2006 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+/* Internal header file for autofs */
+
+#include <linux/auto_fs.h>
+#include <linux/auto_dev-ioctl.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+
+/* This is the range of ioctl() numbers we claim as ours */
+#define AUTOFS_IOC_FIRST AUTOFS_IOC_READY
+#define AUTOFS_IOC_COUNT 32
+
+#define AUTOFS_DEV_IOCTL_IOC_FIRST (AUTOFS_DEV_IOCTL_VERSION)
+#define AUTOFS_DEV_IOCTL_IOC_COUNT (AUTOFS_IOC_COUNT - 11)
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <linux/string.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/mount.h>
+#include <linux/namei.h>
+#include <asm/current.h>
+#include <asm/uaccess.h>
+
+/* #define DEBUG */
+
+#define DPRINTK(fmt, ...) \
+ pr_debug("pid %d: %s: " fmt "\n", \
+ current->pid, __func__, ##__VA_ARGS__)
+
+#define AUTOFS_WARN(fmt, ...) \
+ printk(KERN_WARNING "pid %d: %s: " fmt "\n", \
+ current->pid, __func__, ##__VA_ARGS__)
+
+#define AUTOFS_ERROR(fmt, ...) \
+ printk(KERN_ERR "pid %d: %s: " fmt "\n", \
+ current->pid, __func__, ##__VA_ARGS__)
+
+/*
+ * Unified info structure. This is pointed to by both the dentry and
+ * inode structures. Each file in the filesystem has an instance of this
+ * structure. It holds a reference to the dentry, so dentries are never
+ * flushed while the file exists. All name lookups are dealt with at the
+ * dentry level, although the filesystem can interfere in the validation
+ * process. Readdir is implemented by traversing the dentry lists.
+ */
+struct autofs_info {
+ struct dentry *dentry;
+ struct inode *inode;
+
+ int flags;
+
+ struct completion expire_complete;
+
+ struct list_head active;
+ int active_count;
+
+ struct list_head expiring;
+
+ struct autofs_sb_info *sbi;
+ unsigned long last_used;
+ atomic_t count;
+
+ kuid_t uid;
+ kgid_t gid;
+};
+
+#define AUTOFS_INF_EXPIRING (1<<0) /* dentry in the process of expiring */
+#define AUTOFS_INF_PENDING (1<<2) /* dentry pending mount */
+
+struct autofs_wait_queue {
+ wait_queue_head_t queue;
+ struct autofs_wait_queue *next;
+ autofs_wqt_t wait_queue_token;
+ /* We use the following to see what we are waiting for */
+ struct qstr name;
+ u32 dev;
+ u64 ino;
+ kuid_t uid;
+ kgid_t gid;
+ pid_t pid;
+ pid_t tgid;
+ /* This is for status reporting upon return */
+ int status;
+ unsigned int wait_ctr;
+};
+
+#define AUTOFS_SBI_MAGIC 0x6d4a556d
+
+struct autofs_sb_info {
+ u32 magic;
+ int pipefd;
+ struct file *pipe;
+ struct pid *oz_pgrp;
+ int catatonic;
+ int version;
+ int sub_version;
+ int min_proto;
+ int max_proto;
+ unsigned long exp_timeout;
+ unsigned int type;
+ int reghost_enabled;
+ int needs_reghost;
+ struct super_block *sb;
+ struct mutex wq_mutex;
+ struct mutex pipe_mutex;
+ spinlock_t fs_lock;
+ struct autofs_wait_queue *queues; /* Wait queue pointer */
+ spinlock_t lookup_lock;
+ struct list_head active_list;
+ struct list_head expiring_list;
+};
+
+static inline struct autofs_sb_info *autofs_sbi(struct super_block *sb)
+{
+ return (struct autofs_sb_info *)(sb->s_fs_info);
+}
+
+static inline struct autofs_info *autofs_dentry_ino(struct dentry *dentry)
+{
+ return (struct autofs_info *)(dentry->d_fsdata);
+}
+
+/* autofs_oz_mode(): do we see the man behind the curtain? (The
+ processes which do manipulations for us in user space sees the raw
+ filesystem without "magic".) */
+
+static inline int autofs_oz_mode(struct autofs_sb_info *sbi)
+{
+ return sbi->catatonic || task_pgrp(current) == sbi->oz_pgrp;
+}
+
+/* Does a dentry have some pending activity? */
+static inline int autofs_ispending(struct dentry *dentry)
+{
+ struct autofs_info *inf = autofs_dentry_ino(dentry);
+
+ if (inf->flags & AUTOFS_INF_PENDING)
+ return 1;
+
+ if (inf->flags & AUTOFS_INF_EXPIRING)
+ return 1;
+
+ return 0;
+}
+
+struct inode *autofs_get_inode(struct super_block *, umode_t);
+void autofs_free_ino(struct autofs_info *);
+
+/* Expiration */
+int is_autofs_dentry(struct dentry *);
+int autofs_expire_wait(struct dentry *dentry);
+int autofs_expire_run(struct super_block *, struct vfsmount *,
+ struct autofs_sb_info *,
+ struct autofs_packet_expire __user *);
+int autofs_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int when);
+int autofs_expire_multi(struct super_block *, struct vfsmount *,
+ struct autofs_sb_info *, int __user *);
+struct dentry *autofs_expire_direct(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int how);
+struct dentry *autofs_expire_indirect(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int how);
+
+/* Device node initialization */
+
+int autofs_dev_ioctl_init(void);
+void autofs_dev_ioctl_exit(void);
+
+/* Operations structures */
+
+extern const struct inode_operations autofs_symlink_inode_operations;
+extern const struct inode_operations autofs_dir_inode_operations;
+extern const struct file_operations autofs_dir_operations;
+extern const struct file_operations autofs_root_operations;
+extern const struct dentry_operations autofs_dentry_operations;
+
+/* VFS automount flags management functions */
+
+static inline void __managed_dentry_set_automount(struct dentry *dentry)
+{
+ dentry->d_flags |= DCACHE_NEED_AUTOMOUNT;
+}
+
+static inline void managed_dentry_set_automount(struct dentry *dentry)
+{
+ spin_lock(&dentry->d_lock);
+ __managed_dentry_set_automount(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+static inline void __managed_dentry_clear_automount(struct dentry *dentry)
+{
+ dentry->d_flags &= ~DCACHE_NEED_AUTOMOUNT;
+}
+
+static inline void managed_dentry_clear_automount(struct dentry *dentry)
+{
+ spin_lock(&dentry->d_lock);
+ __managed_dentry_clear_automount(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+static inline void __managed_dentry_set_transit(struct dentry *dentry)
+{
+ dentry->d_flags |= DCACHE_MANAGE_TRANSIT;
+}
+
+static inline void managed_dentry_set_transit(struct dentry *dentry)
+{
+ spin_lock(&dentry->d_lock);
+ __managed_dentry_set_transit(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+static inline void __managed_dentry_clear_transit(struct dentry *dentry)
+{
+ dentry->d_flags &= ~DCACHE_MANAGE_TRANSIT;
+}
+
+static inline void managed_dentry_clear_transit(struct dentry *dentry)
+{
+ spin_lock(&dentry->d_lock);
+ __managed_dentry_clear_transit(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+static inline void __managed_dentry_set_managed(struct dentry *dentry)
+{
+ dentry->d_flags |= (DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT);
+}
+
+static inline void managed_dentry_set_managed(struct dentry *dentry)
+{
+ spin_lock(&dentry->d_lock);
+ __managed_dentry_set_managed(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+static inline void __managed_dentry_clear_managed(struct dentry *dentry)
+{
+ dentry->d_flags &= ~(DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT);
+}
+
+static inline void managed_dentry_clear_managed(struct dentry *dentry)
+{
+ spin_lock(&dentry->d_lock);
+ __managed_dentry_clear_managed(dentry);
+ spin_unlock(&dentry->d_lock);
+}
+
+/* Initializing function */
+
+int autofs_fill_super(struct super_block *, void *, int);
+struct autofs_info *autofs_new_ino(struct autofs_sb_info *);
+void autofs_clean_ino(struct autofs_info *);
+
+static inline int autofs_prepare_pipe(struct file *pipe)
+{
+ if (!pipe->f_op || !pipe->f_op->write)
+ return -EINVAL;
+ if (!S_ISFIFO(file_inode(pipe)->i_mode))
+ return -EINVAL;
+ /* We want a packet pipe */
+ pipe->f_flags |= O_DIRECT;
+ return 0;
+}
+
+/* Queue management functions */
+
+int autofs_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);
+int autofs_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
+void autofs_catatonic_mode(struct autofs_sb_info *);
+
+static inline u32 autofs_get_dev(struct autofs_sb_info *sbi)
+{
+ return new_encode_dev(sbi->sb->s_dev);
+}
+
+static inline u64 autofs_get_ino(struct autofs_sb_info *sbi)
+{
+ return sbi->sb->s_root->d_inode->i_ino;
+}
+
+static inline int simple_positive(struct dentry *dentry)
+{
+ return dentry->d_inode && !d_unhashed(dentry);
+}
+
+static inline void __autofs_add_expiring(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ if (ino) {
+ if (list_empty(&ino->expiring))
+ list_add(&ino->expiring, &sbi->expiring_list);
+ }
+ return;
+}
+
+static inline void autofs_add_expiring(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ if (ino) {
+ spin_lock(&sbi->lookup_lock);
+ if (list_empty(&ino->expiring))
+ list_add(&ino->expiring, &sbi->expiring_list);
+ spin_unlock(&sbi->lookup_lock);
+ }
+ return;
+}
+
+static inline void autofs_del_expiring(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ if (ino) {
+ spin_lock(&sbi->lookup_lock);
+ if (!list_empty(&ino->expiring))
+ list_del_init(&ino->expiring);
+ spin_unlock(&sbi->lookup_lock);
+ }
+ return;
+}
+
+extern void autofs_kill_sb(struct super_block *);
diff --git a/fs/autofs/dev-ioctl.c b/fs/autofs/dev-ioctl.c
new file mode 100644
index 0000000..de475cc
--- /dev/null
+++ b/fs/autofs/dev-ioctl.c
@@ -0,0 +1,759 @@
+/*
+ * Copyright 2008 Red Hat, Inc. All rights reserved.
+ * Copyright 2008 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ */
+
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+#include <linux/miscdevice.h>
+#include <linux/init.h>
+#include <linux/wait.h>
+#include <linux/namei.h>
+#include <linux/fcntl.h>
+#include <linux/file.h>
+#include <linux/fdtable.h>
+#include <linux/sched.h>
+#include <linux/compat.h>
+#include <linux/syscalls.h>
+#include <linux/magic.h>
+#include <linux/dcache.h>
+#include <linux/uaccess.h>
+#include <linux/slab.h>
+
+#include "autofs_i.h"
+
+/*
+ * This module implements an interface for routing autofs ioctl control
+ * commands via a miscellaneous device file.
+ *
+ * The alternate interface is needed because we need to be able open
+ * an ioctl file descriptor on an autofs mount that may be covered by
+ * another mount. This situation arises when starting automount(8)
+ * or other user space daemon which uses direct mounts or offset
+ * mounts (used for autofs lazy mount/umount of nested mount trees),
+ * which have been left busy at at service shutdown.
+ */
+
+#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
+
+typedef int (*ioctl_fn)(struct file *, struct autofs_sb_info *,
+ struct autofs_dev_ioctl *);
+
+static int check_name(const char *name)
+{
+ if (!strchr(name, '/'))
+ return -EINVAL;
+ return 0;
+}
+
+/*
+ * Check a string doesn't overrun the chunk of
+ * memory we copied from user land.
+ */
+static int invalid_str(char *str, size_t size)
+{
+ if (memchr(str, 0, size))
+ return 0;
+ return -EINVAL;
+}
+
+/*
+ * Check that the user compiled against correct version of autofs
+ * misc device code.
+ *
+ * As well as checking the version compatibility this always copies
+ * the kernel interface version out.
+ */
+static int check_dev_ioctl_version(int cmd, struct autofs_dev_ioctl *param)
+{
+ int err = 0;
+
+ if ((AUTOFS_DEV_IOCTL_VERSION_MAJOR != param->ver_major) ||
+ (AUTOFS_DEV_IOCTL_VERSION_MINOR < param->ver_minor)) {
+ AUTOFS_WARN("ioctl control interface version mismatch: "
+ "kernel(%u.%u), user(%u.%u), cmd(%d)",
+ AUTOFS_DEV_IOCTL_VERSION_MAJOR,
+ AUTOFS_DEV_IOCTL_VERSION_MINOR,
+ param->ver_major, param->ver_minor, cmd);
+ err = -EINVAL;
+ }
+
+ /* Fill in the kernel version. */
+ param->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
+ param->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
+
+ return err;
+}
+
+/*
+ * Copy parameter control struct, including a possible path allocated
+ * at the end of the struct.
+ */
+static struct autofs_dev_ioctl *copy_dev_ioctl(struct autofs_dev_ioctl __user *in)
+{
+ struct autofs_dev_ioctl tmp;
+
+ if (copy_from_user(&tmp, in, sizeof(tmp)))
+ return ERR_PTR(-EFAULT);
+
+ if (tmp.size < sizeof(tmp))
+ return ERR_PTR(-EINVAL);
+
+ return memdup_user(in, tmp.size);
+}
+
+static inline void free_dev_ioctl(struct autofs_dev_ioctl *param)
+{
+ kfree(param);
+ return;
+}
+
+/*
+ * Check sanity of parameter control fields and if a path is present
+ * check that it is terminated and contains at least one "/".
+ */
+static int validate_dev_ioctl(int cmd, struct autofs_dev_ioctl *param)
+{
+ int err;
+
+ err = check_dev_ioctl_version(cmd, param);
+ if (err) {
+ AUTOFS_WARN("invalid device control module version "
+ "supplied for cmd(0x%08x)", cmd);
+ goto out;
+ }
+
+ if (param->size > sizeof(*param)) {
+ err = invalid_str(param->path, param->size - sizeof(*param));
+ if (err) {
+ AUTOFS_WARN(
+ "path string terminator missing for cmd(0x%08x)",
+ cmd);
+ goto out;
+ }
+
+ err = check_name(param->path);
+ if (err) {
+ AUTOFS_WARN("invalid path supplied for cmd(0x%08x)",
+ cmd);
+ goto out;
+ }
+ }
+
+ err = 0;
+out:
+ return err;
+}
+
+/*
+ * Get the autofs super block info struct from the file opened on
+ * the autofs mount point.
+ */
+static struct autofs_sb_info *autofs_dev_ioctl_sbi(struct file *f)
+{
+ struct autofs_sb_info *sbi = NULL;
+ struct inode *inode;
+
+ if (f) {
+ inode = file_inode(f);
+ sbi = autofs_sbi(inode->i_sb);
+ }
+ return sbi;
+}
+
+/* Return autofs module protocol version */
+static int autofs_dev_ioctl_protover(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ param->protover.version = sbi->version;
+ return 0;
+}
+
+/* Return autofs module protocol sub version */
+static int autofs_dev_ioctl_protosubver(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ param->protosubver.sub_version = sbi->sub_version;
+ return 0;
+}
+
+static int find_autofs_mount(const char *pathname,
+ struct path *res,
+ int test(struct path *path, void *data),
+ void *data)
+{
+ struct path path;
+ int err = kern_path(pathname, 0, &path);
+ if (err)
+ return err;
+ err = -ENOENT;
+ while (path.dentry == path.mnt->mnt_root) {
+ if (path.dentry->d_sb->s_magic == AUTOFS_SUPER_MAGIC) {
+ if (test(&path, data)) {
+ path_get(&path);
+ if (!err) /* already found some */
+ path_put(res);
+ *res = path;
+ err = 0;
+ }
+ }
+ if (!follow_up(&path))
+ break;
+ }
+ path_put(&path);
+ return err;
+}
+
+static int test_by_dev(struct path *path, void *p)
+{
+ return path->dentry->d_sb->s_dev == *(dev_t *)p;
+}
+
+static int test_by_type(struct path *path, void *p)
+{
+ struct autofs_info *ino = autofs_dentry_ino(path->dentry);
+ return ino && ino->sbi->type & *(unsigned *)p;
+}
+
+/*
+ * Open a file descriptor on the autofs mount point corresponding
+ * to the given path and device number (aka. new_encode_dev(sb->s_dev)).
+ */
+static int autofs_dev_ioctl_open_mountpoint(const char *name, dev_t devid)
+{
+ int err, fd;
+
+ fd = get_unused_fd_flags(O_CLOEXEC);
+ if (likely(fd >= 0)) {
+ struct file *filp;
+ struct path path;
+
+ err = find_autofs_mount(name, &path, test_by_dev, &devid);
+ if (err)
+ goto out;
+
+ /*
+ * Find autofs super block that has the device number
+ * corresponding to the autofs fs we want to open.
+ */
+
+ filp = dentry_open(&path, O_RDONLY, current_cred());
+ path_put(&path);
+ if (IS_ERR(filp)) {
+ err = PTR_ERR(filp);
+ goto out;
+ }
+
+ fd_install(fd, filp);
+ }
+
+ return fd;
+
+out:
+ put_unused_fd(fd);
+ return err;
+}
+
+/* Open a file descriptor on an autofs mount point */
+static int autofs_dev_ioctl_openmount(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ const char *path;
+ dev_t devid;
+ int err, fd;
+
+ /* param->path has already been checked */
+ if (!param->openmount.devid)
+ return -EINVAL;
+
+ param->ioctlfd = -1;
+
+ path = param->path;
+ devid = new_decode_dev(param->openmount.devid);
+
+ err = 0;
+ fd = autofs_dev_ioctl_open_mountpoint(path, devid);
+ if (unlikely(fd < 0)) {
+ err = fd;
+ goto out;
+ }
+
+ param->ioctlfd = fd;
+out:
+ return err;
+}
+
+/* Close file descriptor allocated above (user can also use close(2)). */
+static int autofs_dev_ioctl_closemount(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ return sys_close(param->ioctlfd);
+}
+
+/*
+ * Send "ready" status for an existing wait (either a mount or an expire
+ * request).
+ */
+static int autofs_dev_ioctl_ready(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ autofs_wqt_t token;
+
+ token = (autofs_wqt_t) param->ready.token;
+ return autofs_wait_release(sbi, token, 0);
+}
+
+/*
+ * Send "fail" status for an existing wait (either a mount or an expire
+ * request).
+ */
+static int autofs_dev_ioctl_fail(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ autofs_wqt_t token;
+ int status;
+
+ token = (autofs_wqt_t) param->fail.token;
+ status = param->fail.status ? param->fail.status : -ENOENT;
+ return autofs_wait_release(sbi, token, status);
+}
+
+/*
+ * Set the pipe fd for kernel communication to the daemon.
+ *
+ * Normally this is set at mount using an option but if we
+ * are reconnecting to a busy mount then we need to use this
+ * to tell the autofs mount about the new kernel pipe fd. In
+ * order to protect mounts against incorrectly setting the
+ * pipefd we also require that the autofs mount be catatonic.
+ *
+ * This also sets the process group id used to identify the
+ * controlling process (eg. the owning automount(8) daemon).
+ */
+static int autofs_dev_ioctl_setpipefd(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ int pipefd;
+ int err = 0;
+ struct pid *new_pid = NULL;
+
+ if (param->setpipefd.pipefd == -1)
+ return -EINVAL;
+
+ pipefd = param->setpipefd.pipefd;
+
+ mutex_lock(&sbi->wq_mutex);
+ if (!sbi->catatonic) {
+ mutex_unlock(&sbi->wq_mutex);
+ return -EBUSY;
+ } else {
+ struct file *pipe;
+
+ new_pid = get_task_pid(current, PIDTYPE_PGID);
+
+ if (ns_of_pid(new_pid) != ns_of_pid(sbi->oz_pgrp)) {
+ AUTOFS_WARN("Not allowed to change PID namespace");
+ err = -EINVAL;
+ goto out;
+ }
+
+ pipe = fget(pipefd);
+ if (!pipe) {
+ err = -EBADF;
+ goto out;
+ }
+ if (autofs_prepare_pipe(pipe) < 0) {
+ err = -EPIPE;
+ fput(pipe);
+ goto out;
+ }
+ swap(sbi->oz_pgrp, new_pid);
+ sbi->pipefd = pipefd;
+ sbi->pipe = pipe;
+ sbi->catatonic = 0;
+ }
+out:
+ put_pid(new_pid);
+ mutex_unlock(&sbi->wq_mutex);
+ return err;
+}
+
+/*
+ * Make the autofs mount point catatonic, no longer responsive to
+ * mount requests. Also closes the kernel pipe file descriptor.
+ */
+static int autofs_dev_ioctl_catatonic(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ autofs_catatonic_mode(sbi);
+ return 0;
+}
+
+/* Set the autofs mount timeout */
+static int autofs_dev_ioctl_timeout(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ unsigned long timeout;
+
+ timeout = param->timeout.timeout;
+ param->timeout.timeout = sbi->exp_timeout / HZ;
+ sbi->exp_timeout = timeout * HZ;
+ return 0;
+}
+
+/*
+ * Return the uid and gid of the last request for the mount
+ *
+ * When reconstructing an autofs mount tree with active mounts
+ * we need to re-connect to mounts that may have used the original
+ * process uid and gid (or string variations of them) for mount
+ * lookups within the map entry.
+ */
+static int autofs_dev_ioctl_requester(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ struct autofs_info *ino;
+ struct path path;
+ dev_t devid;
+ int err = -ENOENT;
+
+ if (param->size <= sizeof(*param)) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ devid = sbi->sb->s_dev;
+
+ param->requester.uid = param->requester.gid = -1;
+
+ err = find_autofs_mount(param->path, &path, test_by_dev, &devid);
+ if (err)
+ goto out;
+
+ ino = autofs_dentry_ino(path.dentry);
+ if (ino) {
+ err = 0;
+ autofs_expire_wait(path.dentry);
+ spin_lock(&sbi->fs_lock);
+ param->requester.uid = from_kuid_munged(current_user_ns(), ino->uid);
+ param->requester.gid = from_kgid_munged(current_user_ns(), ino->gid);
+ spin_unlock(&sbi->fs_lock);
+ }
+ path_put(&path);
+out:
+ return err;
+}
+
+/*
+ * Call repeatedly until it returns -EAGAIN, meaning there's nothing
+ * more that can be done.
+ */
+static int autofs_dev_ioctl_expire(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ struct vfsmount *mnt;
+ int how;
+
+ how = param->expire.how;
+ mnt = fp->f_path.mnt;
+
+ return autofs_do_expire_multi(sbi->sb, mnt, sbi, how);
+}
+
+/* Check if autofs mount point is in use */
+static int autofs_dev_ioctl_askumount(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ param->askumount.may_umount = 0;
+ if (may_umount(fp->f_path.mnt))
+ param->askumount.may_umount = 1;
+ return 0;
+}
+
+/*
+ * Check if the given path is a mountpoint.
+ *
+ * If we are supplied with the file descriptor of an autofs
+ * mount we're looking for a specific mount. In this case
+ * the path is considered a mountpoint if it is itself a
+ * mountpoint or contains a mount, such as a multi-mount
+ * without a root mount. In this case we return 1 if the
+ * path is a mount point and the super magic of the covering
+ * mount if there is one or 0 if it isn't a mountpoint.
+ *
+ * If we aren't supplied with a file descriptor then we
+ * lookup the nameidata of the path and check if it is the
+ * root of a mount. If a type is given we are looking for
+ * a particular autofs mount and if we don't find a match
+ * we return fail. If the located nameidata path is the
+ * root of a mount we return 1 along with the super magic
+ * of the mount or 0 otherwise.
+ *
+ * In both cases the the device number (as returned by
+ * new_encode_dev()) is also returned.
+ */
+static int autofs_dev_ioctl_ismountpoint(struct file *fp,
+ struct autofs_sb_info *sbi,
+ struct autofs_dev_ioctl *param)
+{
+ struct path path;
+ const char *name;
+ unsigned int type;
+ unsigned int devid, magic;
+ int err = -ENOENT;
+
+ if (param->size <= sizeof(*param)) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ name = param->path;
+ type = param->ismountpoint.in.type;
+
+ param->ismountpoint.out.devid = devid = 0;
+ param->ismountpoint.out.magic = magic = 0;
+
+ if (!fp || param->ioctlfd == -1) {
+ if (autofs_type_any(type))
+ err = kern_path(name, LOOKUP_FOLLOW, &path);
+ else
+ err = find_autofs_mount(name, &path, test_by_type, &type);
+ if (err)
+ goto out;
+ devid = new_encode_dev(path.dentry->d_sb->s_dev);
+ err = 0;
+ if (path.mnt->mnt_root == path.dentry) {
+ err = 1;
+ magic = path.dentry->d_sb->s_magic;
+ }
+ } else {
+ dev_t dev = sbi->sb->s_dev;
+
+ err = find_autofs_mount(name, &path, test_by_dev, &dev);
+ if (err)
+ goto out;
+
+ devid = new_encode_dev(dev);
+
+ err = have_submounts(path.dentry);
+
+ if (follow_down_one(&path))
+ magic = path.dentry->d_sb->s_magic;
+ }
+
+ param->ismountpoint.out.devid = devid;
+ param->ismountpoint.out.magic = magic;
+ path_put(&path);
+out:
+ return err;
+}
+
+/*
+ * Our range of ioctl numbers isn't 0 based so we need to shift
+ * the array index by _IOC_NR(AUTOFS_CTL_IOC_FIRST) for the table
+ * lookup.
+ */
+#define cmd_idx(cmd) (cmd - _IOC_NR(AUTOFS_DEV_IOCTL_IOC_FIRST))
+
+static ioctl_fn lookup_dev_ioctl(unsigned int cmd)
+{
+ static struct {
+ int cmd;
+ ioctl_fn fn;
+ } _ioctls[] = {
+ {cmd_idx(AUTOFS_DEV_IOCTL_VERSION_CMD), NULL},
+ {cmd_idx(AUTOFS_DEV_IOCTL_PROTOVER_CMD),
+ autofs_dev_ioctl_protover},
+ {cmd_idx(AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD),
+ autofs_dev_ioctl_protosubver},
+ {cmd_idx(AUTOFS_DEV_IOCTL_OPENMOUNT_CMD),
+ autofs_dev_ioctl_openmount},
+ {cmd_idx(AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD),
+ autofs_dev_ioctl_closemount},
+ {cmd_idx(AUTOFS_DEV_IOCTL_READY_CMD),
+ autofs_dev_ioctl_ready},
+ {cmd_idx(AUTOFS_DEV_IOCTL_FAIL_CMD),
+ autofs_dev_ioctl_fail},
+ {cmd_idx(AUTOFS_DEV_IOCTL_SETPIPEFD_CMD),
+ autofs_dev_ioctl_setpipefd},
+ {cmd_idx(AUTOFS_DEV_IOCTL_CATATONIC_CMD),
+ autofs_dev_ioctl_catatonic},
+ {cmd_idx(AUTOFS_DEV_IOCTL_TIMEOUT_CMD),
+ autofs_dev_ioctl_timeout},
+ {cmd_idx(AUTOFS_DEV_IOCTL_REQUESTER_CMD),
+ autofs_dev_ioctl_requester},
+ {cmd_idx(AUTOFS_DEV_IOCTL_EXPIRE_CMD),
+ autofs_dev_ioctl_expire},
+ {cmd_idx(AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD),
+ autofs_dev_ioctl_askumount},
+ {cmd_idx(AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD),
+ autofs_dev_ioctl_ismountpoint}
+ };
+ unsigned int idx = cmd_idx(cmd);
+
+ return (idx >= ARRAY_SIZE(_ioctls)) ? NULL : _ioctls[idx].fn;
+}
+
+/* ioctl dispatcher */
+static int _autofs_dev_ioctl(unsigned int command, struct autofs_dev_ioctl __user *user)
+{
+ struct autofs_dev_ioctl *param;
+ struct file *fp;
+ struct autofs_sb_info *sbi;
+ unsigned int cmd_first, cmd;
+ ioctl_fn fn = NULL;
+ int err = 0;
+
+ /* only root can play with this */
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ cmd_first = _IOC_NR(AUTOFS_DEV_IOCTL_IOC_FIRST);
+ cmd = _IOC_NR(command);
+
+ if (_IOC_TYPE(command) != _IOC_TYPE(AUTOFS_DEV_IOCTL_IOC_FIRST) ||
+ cmd - cmd_first >= AUTOFS_DEV_IOCTL_IOC_COUNT) {
+ return -ENOTTY;
+ }
+
+ /* Copy the parameters into kernel space. */
+ param = copy_dev_ioctl(user);
+ if (IS_ERR(param))
+ return PTR_ERR(param);
+
+ err = validate_dev_ioctl(command, param);
+ if (err)
+ goto out;
+
+ /* The validate routine above always sets the version */
+ if (cmd == AUTOFS_DEV_IOCTL_VERSION_CMD)
+ goto done;
+
+ fn = lookup_dev_ioctl(cmd);
+ if (!fn) {
+ AUTOFS_WARN("unknown command 0x%08x", command);
+ return -ENOTTY;
+ }
+
+ fp = NULL;
+ sbi = NULL;
+
+ /*
+ * For obvious reasons the openmount can't have a file
+ * descriptor yet. We don't take a reference to the
+ * file during close to allow for immediate release.
+ */
+ if (cmd != AUTOFS_DEV_IOCTL_OPENMOUNT_CMD &&
+ cmd != AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD) {
+ fp = fget(param->ioctlfd);
+ if (!fp) {
+ if (cmd == AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD)
+ goto cont;
+ err = -EBADF;
+ goto out;
+ }
+
+ if (!fp->f_op) {
+ err = -ENOTTY;
+ fput(fp);
+ goto out;
+ }
+
+ sbi = autofs_dev_ioctl_sbi(fp);
+ if (!sbi || sbi->magic != AUTOFS_SBI_MAGIC) {
+ err = -EINVAL;
+ fput(fp);
+ goto out;
+ }
+
+ /*
+ * Admin needs to be able to set the mount catatonic in
+ * order to be able to perform the re-open.
+ */
+ if (!autofs_oz_mode(sbi) &&
+ cmd != AUTOFS_DEV_IOCTL_CATATONIC_CMD) {
+ err = -EACCES;
+ fput(fp);
+ goto out;
+ }
+ }
+cont:
+ err = fn(fp, sbi, param);
+
+ if (fp)
+ fput(fp);
+done:
+ if (err >= 0 && copy_to_user(user, param, AUTOFS_DEV_IOCTL_SIZE))
+ err = -EFAULT;
+out:
+ free_dev_ioctl(param);
+ return err;
+}
+
+static long autofs_dev_ioctl(struct file *file, uint command, ulong u)
+{
+ int err;
+ err = _autofs_dev_ioctl(command, (struct autofs_dev_ioctl __user *) u);
+ return (long) err;
+}
+
+#ifdef CONFIG_COMPAT
+static long autofs_dev_ioctl_compat(struct file *file, uint command, ulong u)
+{
+ return (long) autofs_dev_ioctl(file, command, (ulong) compat_ptr(u));
+}
+#else
+#define autofs_dev_ioctl_compat NULL
+#endif
+
+static const struct file_operations _dev_ioctl_fops = {
+ .unlocked_ioctl = autofs_dev_ioctl,
+ .compat_ioctl = autofs_dev_ioctl_compat,
+ .owner = THIS_MODULE,
+ .llseek = noop_llseek,
+};
+
+static struct miscdevice _autofs_dev_ioctl_misc = {
+ .minor = AUTOFS_MINOR,
+ .name = AUTOFS_DEVICE_NAME,
+ .fops = &_dev_ioctl_fops
+};
+
+MODULE_ALIAS_MISCDEV(AUTOFS_MINOR);
+MODULE_ALIAS("devname:autofs");
+
+/* Register/deregister misc character device */
+int autofs_dev_ioctl_init(void)
+{
+ int r;
+
+ r = misc_register(&_autofs_dev_ioctl_misc);
+ if (r) {
+ AUTOFS_ERROR("misc_register failed for control device");
+ return r;
+ }
+
+ return 0;
+}
+
+void autofs_dev_ioctl_exit(void)
+{
+ misc_deregister(&_autofs_dev_ioctl_misc);
+ return;
+}
diff --git a/fs/autofs/expire.c b/fs/autofs/expire.c
new file mode 100644
index 0000000..4b78c86
--- /dev/null
+++ b/fs/autofs/expire.c
@@ -0,0 +1,561 @@
+/*
+ * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
+ * Copyright 2001-2006 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include "autofs_i.h"
+
+static unsigned long now;
+
+/* Check if a dentry can be expired */
+static inline int autofs_can_expire(struct dentry *dentry,
+ unsigned long timeout, int do_now)
+{
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+
+ /* dentry in the process of being deleted */
+ if (ino == NULL)
+ return 0;
+
+ if (!do_now) {
+ /* Too young to die */
+ if (!timeout || time_after(ino->last_used + timeout, now))
+ return 0;
+
+ /* update last_used here :-
+ - obviously makes sense if it is in use now
+ - less obviously, prevents rapid-fire expire
+ attempts if expire fails the first time */
+ ino->last_used = now;
+ }
+ return 1;
+}
+
+/* Check a mount point for busyness */
+static int autofs_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
+{
+ struct dentry *top = dentry;
+ struct path path = {.mnt = mnt, .dentry = dentry};
+ int status = 1;
+
+ DPRINTK("dentry %p %.*s",
+ dentry, (int)dentry->d_name.len, dentry->d_name.name);
+
+ path_get(&path);
+
+ if (!follow_down_one(&path))
+ goto done;
+
+ if (is_autofs_dentry(path.dentry)) {
+ struct autofs_sb_info *sbi = autofs_sbi(path.dentry->d_sb);
+
+ /* This is an autofs submount, we can't expire it */
+ if (autofs_type_indirect(sbi->type))
+ goto done;
+ }
+
+ /* Update the expiry counter if fs is busy */
+ if (!may_umount_tree(path.mnt)) {
+ struct autofs_info *ino = autofs_dentry_ino(top);
+ ino->last_used = jiffies;
+ goto done;
+ }
+
+ status = 0;
+done:
+ DPRINTK("returning = %d", status);
+ path_put(&path);
+ return status;
+}
+
+/*
+ * Calculate and dget next entry in the subdirs list under root.
+ */
+static struct dentry *get_next_positive_subdir(struct dentry *prev,
+ struct dentry *root)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
+ struct list_head *next;
+ struct dentry *q;
+
+ spin_lock(&sbi->lookup_lock);
+ spin_lock(&root->d_lock);
+
+ if (prev)
+ next = prev->d_u.d_child.next;
+ else {
+ prev = dget_dlock(root);
+ next = prev->d_subdirs.next;
+ }
+
+cont:
+ if (next == &root->d_subdirs) {
+ spin_unlock(&root->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+ dput(prev);
+ return NULL;
+ }
+
+ q = list_entry(next, struct dentry, d_u.d_child);
+
+ spin_lock_nested(&q->d_lock, DENTRY_D_LOCK_NESTED);
+ /* Already gone or negative dentry (under construction) - try next */
+ if (q->d_count == 0 || !simple_positive(q)) {
+ spin_unlock(&q->d_lock);
+ next = q->d_u.d_child.next;
+ goto cont;
+ }
+ dget_dlock(q);
+ spin_unlock(&q->d_lock);
+ spin_unlock(&root->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+
+ dput(prev);
+
+ return q;
+}
+
+/*
+ * Calculate and dget next entry in top down tree traversal.
+ */
+static struct dentry *get_next_positive_dentry(struct dentry *prev,
+ struct dentry *root)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
+ struct list_head *next;
+ struct dentry *p, *ret;
+
+ if (prev == NULL)
+ return dget(root);
+
+ spin_lock(&sbi->lookup_lock);
+relock:
+ p = prev;
+ spin_lock(&p->d_lock);
+again:
+ next = p->d_subdirs.next;
+ if (next == &p->d_subdirs) {
+ while (1) {
+ struct dentry *parent;
+
+ if (p == root) {
+ spin_unlock(&p->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+ dput(prev);
+ return NULL;
+ }
+
+ parent = p->d_parent;
+ if (!spin_trylock(&parent->d_lock)) {
+ spin_unlock(&p->d_lock);
+ cpu_relax();
+ goto relock;
+ }
+ spin_unlock(&p->d_lock);
+ next = p->d_u.d_child.next;
+ p = parent;
+ if (next != &parent->d_subdirs)
+ break;
+ }
+ }
+ ret = list_entry(next, struct dentry, d_u.d_child);
+
+ spin_lock_nested(&ret->d_lock, DENTRY_D_LOCK_NESTED);
+ /* Negative dentry - try next */
+ if (!simple_positive(ret)) {
+ spin_unlock(&p->d_lock);
+ lock_set_subclass(&ret->d_lock.dep_map, 0, _RET_IP_);
+ p = ret;
+ goto again;
+ }
+ dget_dlock(ret);
+ spin_unlock(&ret->d_lock);
+ spin_unlock(&p->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+
+ dput(prev);
+
+ return ret;
+}
+
+/*
+ * Check a direct mount point for busyness.
+ * Direct mounts have similar expiry semantics to tree mounts.
+ * The tree is not busy iff no mountpoints are busy and there are no
+ * autofs submounts.
+ */
+static int autofs_direct_busy(struct vfsmount *mnt,
+ struct dentry *top,
+ unsigned long timeout,
+ int do_now)
+{
+ DPRINTK("top %p %.*s",
+ top, (int) top->d_name.len, top->d_name.name);
+
+ /* If it's busy update the expiry counters */
+ if (!may_umount_tree(mnt)) {
+ struct autofs_info *ino = autofs_dentry_ino(top);
+ if (ino)
+ ino->last_used = jiffies;
+ return 1;
+ }
+
+ /* Timeout of a direct mount is determined by its top dentry */
+ if (!autofs_can_expire(top, timeout, do_now))
+ return 1;
+
+ return 0;
+}
+
+/*
+ * Check a directory tree of mount points for busyness
+ * The tree is not busy iff no mountpoints are busy
+ */
+static int autofs_tree_busy(struct vfsmount *mnt,
+ struct dentry *top,
+ unsigned long timeout,
+ int do_now)
+{
+ struct autofs_info *top_ino = autofs_dentry_ino(top);
+ struct dentry *p;
+
+ DPRINTK("top %p %.*s",
+ top, (int)top->d_name.len, top->d_name.name);
+
+ /* Negative dentry - give up */
+ if (!simple_positive(top))
+ return 1;
+
+ p = NULL;
+ while ((p = get_next_positive_dentry(p, top))) {
+ DPRINTK("dentry %p %.*s",
+ p, (int) p->d_name.len, p->d_name.name);
+
+ /*
+ * Is someone visiting anywhere in the subtree ?
+ * If there's no mount we need to check the usage
+ * count for the autofs dentry.
+ * If the fs is busy update the expiry counter.
+ */
+ if (d_mountpoint(p)) {
+ if (autofs_mount_busy(mnt, p)) {
+ top_ino->last_used = jiffies;
+ dput(p);
+ return 1;
+ }
+ } else {
+ struct autofs_info *ino = autofs_dentry_ino(p);
+ unsigned int ino_count = atomic_read(&ino->count);
+
+ /*
+ * Clean stale dentries below that have not been
+ * invalidated after a mount fail during lookup
+ */
+ d_invalidate(p);
+
+ /* allow for dget above and top is already dgot */
+ if (p == top)
+ ino_count += 2;
+ else
+ ino_count++;
+
+ if (p->d_count > ino_count) {
+ top_ino->last_used = jiffies;
+ dput(p);
+ return 1;
+ }
+ }
+ }
+
+ /* Timeout of a tree mount is ultimately determined by its top dentry */
+ if (!autofs_can_expire(top, timeout, do_now))
+ return 1;
+
+ return 0;
+}
+
+static struct dentry *autofs_check_leaves(struct vfsmount *mnt,
+ struct dentry *parent,
+ unsigned long timeout,
+ int do_now)
+{
+ struct dentry *p;
+
+ DPRINTK("parent %p %.*s",
+ parent, (int)parent->d_name.len, parent->d_name.name);
+
+ p = NULL;
+ while ((p = get_next_positive_dentry(p, parent))) {
+ DPRINTK("dentry %p %.*s",
+ p, (int) p->d_name.len, p->d_name.name);
+
+ if (d_mountpoint(p)) {
+ /* Can we umount this guy */
+ if (autofs_mount_busy(mnt, p))
+ continue;
+
+ /* Can we expire this guy */
+ if (autofs_can_expire(p, timeout, do_now))
+ return p;
+ }
+ }
+ return NULL;
+}
+
+/* Check if we can expire a direct mount (possibly a tree) */
+struct dentry *autofs_expire_direct(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi,
+ int how)
+{
+ unsigned long timeout;
+ struct dentry *root = dget(sb->s_root);
+ int do_now = how & AUTOFS_EXP_IMMEDIATE;
+ struct autofs_info *ino;
+
+ if (!root)
+ return NULL;
+
+ now = jiffies;
+ timeout = sbi->exp_timeout;
+
+ spin_lock(&sbi->fs_lock);
+ ino = autofs_dentry_ino(root);
+ /* No point expiring a pending mount */
+ if (ino->flags & AUTOFS_INF_PENDING)
+ goto out;
+ if (!autofs_direct_busy(mnt, root, timeout, do_now)) {
+ struct autofs_info *ino = autofs_dentry_ino(root);
+ ino->flags |= AUTOFS_INF_EXPIRING;
+ init_completion(&ino->expire_complete);
+ spin_unlock(&sbi->fs_lock);
+ return root;
+ }
+out:
+ spin_unlock(&sbi->fs_lock);
+ dput(root);
+
+ return NULL;
+}
+
+/*
+ * Find an eligible tree to time-out
+ * A tree is eligible if :-
+ * - it is unused by any user process
+ * - it has been unused for exp_timeout time
+ */
+struct dentry *autofs_expire_indirect(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi,
+ int how)
+{
+ unsigned long timeout;
+ struct dentry *root = sb->s_root;
+ struct dentry *dentry;
+ struct dentry *expired = NULL;
+ int do_now = how & AUTOFS_EXP_IMMEDIATE;
+ int exp_leaves = how & AUTOFS_EXP_LEAVES;
+ struct autofs_info *ino;
+ unsigned int ino_count;
+
+ if (!root)
+ return NULL;
+
+ now = jiffies;
+ timeout = sbi->exp_timeout;
+
+ dentry = NULL;
+ while ((dentry = get_next_positive_subdir(dentry, root))) {
+ spin_lock(&sbi->fs_lock);
+ ino = autofs_dentry_ino(dentry);
+ /* No point expiring a pending mount */
+ if (ino->flags & AUTOFS_INF_PENDING)
+ goto next;
+
+ /*
+ * Case 1: (i) indirect mount or top level pseudo direct mount
+ * (autofs-4.1).
+ * (ii) indirect mount with offset mount, check the "/"
+ * offset (autofs-5.0+).
+ */
+ if (d_mountpoint(dentry)) {
+ DPRINTK("checking mountpoint %p %.*s", dentry,
+ (int)dentry->d_name.len, dentry->d_name.name);
+
+ /* Can we umount this guy */
+ if (autofs_mount_busy(mnt, dentry))
+ goto next;
+
+ /* Can we expire this guy */
+ if (autofs_can_expire(dentry, timeout, do_now)) {
+ expired = dentry;
+ goto found;
+ }
+ goto next;
+ }
+
+ if (simple_empty(dentry))
+ goto next;
+
+ /* Case 2: tree mount, expire iff entire tree is not busy */
+ if (!exp_leaves) {
+ /* Path walk currently on this dentry? */
+ ino_count = atomic_read(&ino->count) + 1;
+ if (dentry->d_count > ino_count)
+ goto next;
+
+ if (!autofs_tree_busy(mnt, dentry, timeout, do_now)) {
+ expired = dentry;
+ goto found;
+ }
+ /*
+ * Case 3: pseudo direct mount, expire individual leaves
+ * (autofs-4.1).
+ */
+ } else {
+ /* Path walk currently on this dentry? */
+ ino_count = atomic_read(&ino->count) + 1;
+ if (dentry->d_count > ino_count)
+ goto next;
+
+ expired = autofs_check_leaves(mnt, dentry, timeout, do_now);
+ if (expired) {
+ dput(dentry);
+ goto found;
+ }
+ }
+next:
+ spin_unlock(&sbi->fs_lock);
+ }
+ return NULL;
+
+found:
+ DPRINTK("returning %p %.*s",
+ expired, (int)expired->d_name.len, expired->d_name.name);
+ ino = autofs_dentry_ino(expired);
+ ino->flags |= AUTOFS_INF_EXPIRING;
+ init_completion(&ino->expire_complete);
+ spin_unlock(&sbi->fs_lock);
+ spin_lock(&sbi->lookup_lock);
+ spin_lock(&expired->d_parent->d_lock);
+ spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED);
+ list_move(&expired->d_parent->d_subdirs, &expired->d_u.d_child);
+ spin_unlock(&expired->d_lock);
+ spin_unlock(&expired->d_parent->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+ return expired;
+}
+
+int autofs_expire_wait(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ int status;
+
+ /* Block on any pending expire */
+ spin_lock(&sbi->fs_lock);
+ if (ino->flags & AUTOFS_INF_EXPIRING) {
+ spin_unlock(&sbi->fs_lock);
+
+ DPRINTK("waiting for expire %p name=%.*s",
+ dentry, dentry->d_name.len, dentry->d_name.name);
+
+ status = autofs_wait(sbi, dentry, NFY_NONE);
+ wait_for_completion(&ino->expire_complete);
+
+ DPRINTK("expire done status=%d", status);
+
+ if (d_unhashed(dentry))
+ return -EAGAIN;
+
+ return status;
+ }
+ spin_unlock(&sbi->fs_lock);
+
+ return 0;
+}
+
+/* Perform an expiry operation */
+int autofs_expire_run(struct super_block *sb,
+ struct vfsmount *mnt,
+ struct autofs_sb_info *sbi,
+ struct autofs_packet_expire __user *pkt_p)
+{
+ struct autofs_packet_expire pkt;
+ struct autofs_info *ino;
+ struct dentry *dentry;
+ int ret = 0;
+
+ memset(&pkt,0,sizeof pkt);
+
+ pkt.hdr.proto_version = sbi->version;
+ pkt.hdr.type = autofs_ptype_expire;
+
+ if ((dentry = autofs_expire_indirect(sb, mnt, sbi, 0)) == NULL)
+ return -EAGAIN;
+
+ pkt.len = dentry->d_name.len;
+ memcpy(pkt.name, dentry->d_name.name, pkt.len);
+ pkt.name[pkt.len] = '\0';
+ dput(dentry);
+
+ if (copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)))
+ ret = -EFAULT;
+
+ spin_lock(&sbi->fs_lock);
+ ino = autofs_dentry_ino(dentry);
+ ino->flags &= ~AUTOFS_INF_EXPIRING;
+ complete_all(&ino->expire_complete);
+ spin_unlock(&sbi->fs_lock);
+
+ return ret;
+}
+
+int autofs_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int when)
+{
+ struct dentry *dentry;
+ int ret = -EAGAIN;
+
+ if (autofs_type_trigger(sbi->type))
+ dentry = autofs_expire_direct(sb, mnt, sbi, when);
+ else
+ dentry = autofs_expire_indirect(sb, mnt, sbi, when);
+
+ if (dentry) {
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+
+ /* This is synchronous because it makes the daemon a
+ little easier */
+ ret = autofs_wait(sbi, dentry, NFY_EXPIRE);
+
+ spin_lock(&sbi->fs_lock);
+ ino->flags &= ~AUTOFS_INF_EXPIRING;
+ complete_all(&ino->expire_complete);
+ spin_unlock(&sbi->fs_lock);
+ dput(dentry);
+ }
+
+ return ret;
+}
+
+/*
+ * Call repeatedly until it returns -EAGAIN, meaning there's nothing
+ * more to be done.
+ */
+int autofs_expire_multi(struct super_block *sb, struct vfsmount *mnt,
+ struct autofs_sb_info *sbi, int __user *arg)
+{
+ int do_now = 0;
+
+ if (arg && get_user(do_now, arg))
+ return -EFAULT;
+
+ return autofs_do_expire_multi(sb, mnt, sbi, do_now);
+}
diff --git a/fs/autofs/init.c b/fs/autofs/init.c
new file mode 100644
index 0000000..51232a9
--- /dev/null
+++ b/fs/autofs/init.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include "autofs_i.h"
+
+static struct dentry *autofs_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data)
+{
+ return mount_nodev(fs_type, flags, data, autofs_fill_super);
+}
+
+static struct file_system_type autofs_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "autofs",
+ .mount = autofs_mount,
+ .kill_sb = autofs_kill_sb,
+};
+MODULE_ALIAS_FS("autofs");
+
+static int __init init_autofs_fs(void)
+{
+ int err;
+
+ autofs_dev_ioctl_init();
+
+ err = register_filesystem(&autofs_fs_type);
+ if (err)
+ autofs_dev_ioctl_exit();
+
+ return err;
+}
+
+static void __exit exit_autofs_fs(void)
+{
+ autofs_dev_ioctl_exit();
+ unregister_filesystem(&autofs_fs_type);
+}
+
+module_init(init_autofs_fs)
+module_exit(exit_autofs_fs)
+MODULE_LICENSE("GPL");
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c
new file mode 100644
index 0000000..5f941ff
--- /dev/null
+++ b/fs/autofs/inode.c
@@ -0,0 +1,368 @@
+/*
+ * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ * Copyright 2005-2006 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/file.h>
+#include <linux/seq_file.h>
+#include <linux/pagemap.h>
+#include <linux/parser.h>
+#include <linux/bitops.h>
+#include <linux/magic.h>
+#include "autofs_i.h"
+#include <linux/module.h>
+
+struct autofs_info *autofs_new_ino(struct autofs_sb_info *sbi)
+{
+ struct autofs_info *ino = kzalloc(sizeof(*ino), GFP_KERNEL);
+ if (ino) {
+ INIT_LIST_HEAD(&ino->active);
+ INIT_LIST_HEAD(&ino->expiring);
+ ino->last_used = jiffies;
+ ino->sbi = sbi;
+ }
+ return ino;
+}
+
+void autofs_clean_ino(struct autofs_info *ino)
+{
+ ino->uid = GLOBAL_ROOT_UID;
+ ino->gid = GLOBAL_ROOT_GID;
+ ino->last_used = jiffies;
+}
+
+void autofs_free_ino(struct autofs_info *ino)
+{
+ kfree(ino);
+}
+
+void autofs_kill_sb(struct super_block *sb)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(sb);
+
+ /*
+ * In the event of a failure in get_sb_nodev the superblock
+ * info is not present so nothing else has been setup, so
+ * just call kill_anon_super when we are called from
+ * deactivate_super.
+ */
+ if (!sbi)
+ goto out_kill_sb;
+
+ /* Free wait queues, close pipe */
+ autofs_catatonic_mode(sbi);
+
+ put_pid(sbi->oz_pgrp);
+
+ sb->s_fs_info = NULL;
+ kfree(sbi);
+
+out_kill_sb:
+ DPRINTK("shutting down");
+ kill_litter_super(sb);
+}
+
+static int autofs_show_options(struct seq_file *m, struct dentry *root)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
+ struct inode *root_inode = root->d_sb->s_root->d_inode;
+
+ if (!sbi)
+ return 0;
+
+ seq_printf(m, ",fd=%d", sbi->pipefd);
+ if (!uid_eq(root_inode->i_uid, GLOBAL_ROOT_UID))
+ seq_printf(m, ",uid=%u",
+ from_kuid_munged(&init_user_ns, root_inode->i_uid));
+ if (!gid_eq(root_inode->i_gid, GLOBAL_ROOT_GID))
+ seq_printf(m, ",gid=%u",
+ from_kgid_munged(&init_user_ns, root_inode->i_gid));
+ seq_printf(m, ",pgrp=%d", pid_vnr(sbi->oz_pgrp));
+ seq_printf(m, ",timeout=%lu", sbi->exp_timeout/HZ);
+ seq_printf(m, ",minproto=%d", sbi->min_proto);
+ seq_printf(m, ",maxproto=%d", sbi->max_proto);
+
+ if (autofs_type_offset(sbi->type))
+ seq_printf(m, ",offset");
+ else if (autofs_type_direct(sbi->type))
+ seq_printf(m, ",direct");
+ else
+ seq_printf(m, ",indirect");
+
+ return 0;
+}
+
+static void autofs_evict_inode(struct inode *inode)
+{
+ clear_inode(inode);
+ kfree(inode->i_private);
+}
+
+static const struct super_operations autofs_sops = {
+ .statfs = simple_statfs,
+ .show_options = autofs_show_options,
+ .evict_inode = autofs_evict_inode,
+};
+
+enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto,
+ Opt_indirect, Opt_direct, Opt_offset};
+
+static const match_table_t tokens = {
+ {Opt_fd, "fd=%u"},
+ {Opt_uid, "uid=%u"},
+ {Opt_gid, "gid=%u"},
+ {Opt_pgrp, "pgrp=%u"},
+ {Opt_minproto, "minproto=%u"},
+ {Opt_maxproto, "maxproto=%u"},
+ {Opt_indirect, "indirect"},
+ {Opt_direct, "direct"},
+ {Opt_offset, "offset"},
+ {Opt_err, NULL}
+};
+
+static int parse_options(char *options, int *pipefd, kuid_t *uid, kgid_t *gid,
+ int *pgrp, bool *pgrp_set, unsigned int *type,
+ int *minproto, int *maxproto)
+{
+ char *p;
+ substring_t args[MAX_OPT_ARGS];
+ int option;
+
+ *uid = current_uid();
+ *gid = current_gid();
+
+ *minproto = AUTOFS_MIN_PROTO_VERSION;
+ *maxproto = AUTOFS_MAX_PROTO_VERSION;
+
+ *pipefd = -1;
+
+ if (!options)
+ return 1;
+
+ while ((p = strsep(&options, ",")) != NULL) {
+ int token;
+ if (!*p)
+ continue;
+
+ token = match_token(p, tokens, args);
+ switch (token) {
+ case Opt_fd:
+ if (match_int(args, pipefd))
+ return 1;
+ break;
+ case Opt_uid:
+ if (match_int(args, &option))
+ return 1;
+ *uid = make_kuid(current_user_ns(), option);
+ if (!uid_valid(*uid))
+ return 1;
+ break;
+ case Opt_gid:
+ if (match_int(args, &option))
+ return 1;
+ *gid = make_kgid(current_user_ns(), option);
+ if (!gid_valid(*gid))
+ return 1;
+ break;
+ case Opt_pgrp:
+ if (match_int(args, &option))
+ return 1;
+ *pgrp = option;
+ *pgrp_set = true;
+ break;
+ case Opt_minproto:
+ if (match_int(args, &option))
+ return 1;
+ *minproto = option;
+ break;
+ case Opt_maxproto:
+ if (match_int(args, &option))
+ return 1;
+ *maxproto = option;
+ break;
+ case Opt_indirect:
+ set_autofs_type_indirect(type);
+ break;
+ case Opt_direct:
+ set_autofs_type_direct(type);
+ break;
+ case Opt_offset:
+ set_autofs_type_offset(type);
+ break;
+ default:
+ return 1;
+ }
+ }
+ return (*pipefd < 0);
+}
+
+int autofs_fill_super(struct super_block *s, void *data, int silent)
+{
+ struct inode * root_inode;
+ struct dentry * root;
+ struct file * pipe;
+ int pipefd;
+ struct autofs_sb_info *sbi;
+ struct autofs_info *ino;
+ int pgrp;
+ bool pgrp_set = false;
+
+ sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
+ if (!sbi)
+ goto fail_unlock;
+ DPRINTK("starting up, sbi = %p",sbi);
+
+ s->s_fs_info = sbi;
+ sbi->magic = AUTOFS_SBI_MAGIC;
+ sbi->pipefd = -1;
+ sbi->pipe = NULL;
+ sbi->catatonic = 1;
+ sbi->exp_timeout = 0;
+ sbi->oz_pgrp = NULL;
+ sbi->sb = s;
+ sbi->version = 0;
+ sbi->sub_version = 0;
+ set_autofs_type_indirect(&sbi->type);
+ sbi->min_proto = 0;
+ sbi->max_proto = 0;
+ mutex_init(&sbi->wq_mutex);
+ mutex_init(&sbi->pipe_mutex);
+ spin_lock_init(&sbi->fs_lock);
+ sbi->queues = NULL;
+ spin_lock_init(&sbi->lookup_lock);
+ INIT_LIST_HEAD(&sbi->active_list);
+ INIT_LIST_HEAD(&sbi->expiring_list);
+ s->s_blocksize = 1024;
+ s->s_blocksize_bits = 10;
+ s->s_magic = AUTOFS_SUPER_MAGIC;
+ s->s_op = &autofs_sops;
+ s->s_d_op = &autofs_dentry_operations;
+ s->s_time_gran = 1;
+
+ /*
+ * Get the root inode and dentry, but defer checking for errors.
+ */
+ ino = autofs_new_ino(sbi);
+ if (!ino)
+ goto fail_free;
+ root_inode = autofs_get_inode(s, S_IFDIR | 0755);
+ root = d_make_root(root_inode);
+ if (!root)
+ goto fail_ino;
+ pipe = NULL;
+
+ root->d_fsdata = ino;
+
+ /* Can this call block? */
+ if (parse_options(data, &pipefd, &root_inode->i_uid, &root_inode->i_gid,
+ &pgrp, &pgrp_set, &sbi->type, &sbi->min_proto,
+ &sbi->max_proto)) {
+ printk("autofs: called with bogus options\n");
+ goto fail_dput;
+ }
+
+ if (pgrp_set) {
+ sbi->oz_pgrp = find_get_pid(pgrp);
+ if (!sbi->oz_pgrp) {
+ pr_warn("autofs: could not find process group %d\n",
+ pgrp);
+ goto fail_dput;
+ }
+ } else {
+ sbi->oz_pgrp = get_task_pid(current, PIDTYPE_PGID);
+ }
+
+ if (autofs_type_trigger(sbi->type))
+ __managed_dentry_set_managed(root);
+
+ root_inode->i_fop = &autofs_root_operations;
+ root_inode->i_op = &autofs_dir_inode_operations;
+
+ /* Couldn't this be tested earlier? */
+ if (sbi->max_proto < AUTOFS_MIN_PROTO_VERSION ||
+ sbi->min_proto > AUTOFS_MAX_PROTO_VERSION) {
+ printk("autofs: kernel does not match daemon version "
+ "daemon (%d, %d) kernel (%d, %d)\n",
+ sbi->min_proto, sbi->max_proto,
+ AUTOFS_MIN_PROTO_VERSION, AUTOFS_MAX_PROTO_VERSION);
+ goto fail_dput;
+ }
+
+ /* Establish highest kernel protocol version */
+ if (sbi->max_proto > AUTOFS_MAX_PROTO_VERSION)
+ sbi->version = AUTOFS_MAX_PROTO_VERSION;
+ else
+ sbi->version = sbi->max_proto;
+ sbi->sub_version = AUTOFS_PROTO_SUBVERSION;
+
+ DPRINTK("pipe fd = %d, pgrp = %u", pipefd, pid_nr(sbi->oz_pgrp));
+ pipe = fget(pipefd);
+
+ if (!pipe) {
+ printk("autofs: could not open pipe file descriptor\n");
+ goto fail_dput;
+ }
+ if (autofs_prepare_pipe(pipe) < 0)
+ goto fail_fput;
+ sbi->pipe = pipe;
+ sbi->pipefd = pipefd;
+ sbi->catatonic = 0;
+
+ /*
+ * Success! Install the root dentry now to indicate completion.
+ */
+ s->s_root = root;
+ return 0;
+
+ /*
+ * Failure ... clean up.
+ */
+fail_fput:
+ printk("autofs: pipe file descriptor does not contain proper ops\n");
+ fput(pipe);
+ /* fall through */
+fail_dput:
+ dput(root);
+ goto fail_free;
+fail_ino:
+ kfree(ino);
+fail_free:
+ put_pid(sbi->oz_pgrp);
+ kfree(sbi);
+ s->s_fs_info = NULL;
+fail_unlock:
+ return -EINVAL;
+}
+
+struct inode *autofs_get_inode(struct super_block *sb, umode_t mode)
+{
+ struct inode *inode = new_inode(sb);
+
+ if (inode == NULL)
+ return NULL;
+
+ inode->i_mode = mode;
+ if (sb->s_root) {
+ inode->i_uid = sb->s_root->d_inode->i_uid;
+ inode->i_gid = sb->s_root->d_inode->i_gid;
+ }
+ inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ inode->i_ino = get_next_ino();
+
+ if (S_ISDIR(mode)) {
+ set_nlink(inode, 2);
+ inode->i_op = &autofs_dir_inode_operations;
+ inode->i_fop = &autofs_dir_operations;
+ } else if (S_ISLNK(mode)) {
+ inode->i_op = &autofs_symlink_inode_operations;
+ }
+
+ return inode;
+}
diff --git a/fs/autofs/root.c b/fs/autofs/root.c
new file mode 100644
index 0000000..0f1644d
--- /dev/null
+++ b/fs/autofs/root.c
@@ -0,0 +1,898 @@
+/*
+ * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
+ * Copyright 2001-2006 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/slab.h>
+#include <linux/param.h>
+#include <linux/time.h>
+#include <linux/compat.h>
+#include <linux/mutex.h>
+
+#include "autofs_i.h"
+
+static int autofs_dir_symlink(struct inode *,struct dentry *,const char *);
+static int autofs_dir_unlink(struct inode *,struct dentry *);
+static int autofs_dir_rmdir(struct inode *,struct dentry *);
+static int autofs_dir_mkdir(struct inode *,struct dentry *,umode_t);
+static long autofs_root_ioctl(struct file *,unsigned int,unsigned long);
+#ifdef CONFIG_COMPAT
+static long autofs_root_compat_ioctl(struct file *,unsigned int,unsigned long);
+#endif
+static int autofs_dir_open(struct inode *inode, struct file *file);
+static struct dentry *autofs_lookup(struct inode *,struct dentry *, unsigned int);
+static struct vfsmount *autofs_d_automount(struct path *);
+static int autofs_d_manage(struct dentry *, bool);
+static void autofs_dentry_release(struct dentry *);
+
+const struct file_operations autofs_root_operations = {
+ .open = dcache_dir_open,
+ .release = dcache_dir_close,
+ .read = generic_read_dir,
+ .iterate = dcache_readdir,
+ .llseek = dcache_dir_lseek,
+ .unlocked_ioctl = autofs_root_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = autofs_root_compat_ioctl,
+#endif
+};
+
+const struct file_operations autofs_dir_operations = {
+ .open = autofs_dir_open,
+ .release = dcache_dir_close,
+ .read = generic_read_dir,
+ .iterate = dcache_readdir,
+ .llseek = dcache_dir_lseek,
+};
+
+const struct inode_operations autofs_dir_inode_operations = {
+ .lookup = autofs_lookup,
+ .unlink = autofs_dir_unlink,
+ .symlink = autofs_dir_symlink,
+ .mkdir = autofs_dir_mkdir,
+ .rmdir = autofs_dir_rmdir,
+};
+
+const struct dentry_operations autofs_dentry_operations = {
+ .d_automount = autofs_d_automount,
+ .d_manage = autofs_d_manage,
+ .d_release = autofs_dentry_release,
+};
+
+static void autofs_add_active(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ if (ino) {
+ spin_lock(&sbi->lookup_lock);
+ if (!ino->active_count) {
+ if (list_empty(&ino->active))
+ list_add(&ino->active, &sbi->active_list);
+ }
+ ino->active_count++;
+ spin_unlock(&sbi->lookup_lock);
+ }
+ return;
+}
+
+static void autofs_del_active(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ if (ino) {
+ spin_lock(&sbi->lookup_lock);
+ ino->active_count--;
+ if (!ino->active_count) {
+ if (!list_empty(&ino->active))
+ list_del_init(&ino->active);
+ }
+ spin_unlock(&sbi->lookup_lock);
+ }
+ return;
+}
+
+static int autofs_dir_open(struct inode *inode, struct file *file)
+{
+ struct dentry *dentry = file->f_path.dentry;
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+
+ DPRINTK("file=%p dentry=%p %.*s",
+ file, dentry, dentry->d_name.len, dentry->d_name.name);
+
+ if (autofs_oz_mode(sbi))
+ goto out;
+
+ /*
+ * An empty directory in an autofs file system is always a
+ * mount point. The daemon must have failed to mount this
+ * during lookup so it doesn't exist. This can happen, for
+ * example, if user space returns an incorrect status for a
+ * mount request. Otherwise we're doing a readdir on the
+ * autofs file system so just let the libfs routines handle
+ * it.
+ */
+ spin_lock(&sbi->lookup_lock);
+ if (!d_mountpoint(dentry) && simple_empty(dentry)) {
+ spin_unlock(&sbi->lookup_lock);
+ return -ENOENT;
+ }
+ spin_unlock(&sbi->lookup_lock);
+
+out:
+ return dcache_dir_open(inode, file);
+}
+
+static void autofs_dentry_release(struct dentry *de)
+{
+ struct autofs_info *ino = autofs_dentry_ino(de);
+ struct autofs_sb_info *sbi = autofs_sbi(de->d_sb);
+
+ DPRINTK("releasing %p", de);
+
+ if (!ino)
+ return;
+
+ if (sbi) {
+ spin_lock(&sbi->lookup_lock);
+ if (!list_empty(&ino->active))
+ list_del(&ino->active);
+ if (!list_empty(&ino->expiring))
+ list_del(&ino->expiring);
+ spin_unlock(&sbi->lookup_lock);
+ }
+
+ autofs_free_ino(ino);
+}
+
+static struct dentry *autofs_lookup_active(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct dentry *parent = dentry->d_parent;
+ struct qstr *name = &dentry->d_name;
+ unsigned int len = name->len;
+ unsigned int hash = name->hash;
+ const unsigned char *str = name->name;
+ struct list_head *p, *head;
+
+ spin_lock(&sbi->lookup_lock);
+ head = &sbi->active_list;
+ list_for_each(p, head) {
+ struct autofs_info *ino;
+ struct dentry *active;
+ struct qstr *qstr;
+
+ ino = list_entry(p, struct autofs_info, active);
+ active = ino->dentry;
+
+ spin_lock(&active->d_lock);
+
+ /* Already gone? */
+ if (active->d_count == 0)
+ goto next;
+
+ qstr = &active->d_name;
+
+ if (active->d_name.hash != hash)
+ goto next;
+ if (active->d_parent != parent)
+ goto next;
+
+ if (qstr->len != len)
+ goto next;
+ if (memcmp(qstr->name, str, len))
+ goto next;
+
+ if (d_unhashed(active)) {
+ dget_dlock(active);
+ spin_unlock(&active->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+ return active;
+ }
+next:
+ spin_unlock(&active->d_lock);
+ }
+ spin_unlock(&sbi->lookup_lock);
+
+ return NULL;
+}
+
+static struct dentry *autofs_lookup_expiring(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct dentry *parent = dentry->d_parent;
+ struct qstr *name = &dentry->d_name;
+ unsigned int len = name->len;
+ unsigned int hash = name->hash;
+ const unsigned char *str = name->name;
+ struct list_head *p, *head;
+
+ spin_lock(&sbi->lookup_lock);
+ head = &sbi->expiring_list;
+ list_for_each(p, head) {
+ struct autofs_info *ino;
+ struct dentry *expiring;
+ struct qstr *qstr;
+
+ ino = list_entry(p, struct autofs_info, expiring);
+ expiring = ino->dentry;
+
+ spin_lock(&expiring->d_lock);
+
+ /* Bad luck, we've already been dentry_iput */
+ if (!expiring->d_inode)
+ goto next;
+
+ qstr = &expiring->d_name;
+
+ if (expiring->d_name.hash != hash)
+ goto next;
+ if (expiring->d_parent != parent)
+ goto next;
+
+ if (qstr->len != len)
+ goto next;
+ if (memcmp(qstr->name, str, len))
+ goto next;
+
+ if (d_unhashed(expiring)) {
+ dget_dlock(expiring);
+ spin_unlock(&expiring->d_lock);
+ spin_unlock(&sbi->lookup_lock);
+ return expiring;
+ }
+next:
+ spin_unlock(&expiring->d_lock);
+ }
+ spin_unlock(&sbi->lookup_lock);
+
+ return NULL;
+}
+
+static int autofs_mount_wait(struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ int status = 0;
+
+ if (ino->flags & AUTOFS_INF_PENDING) {
+ DPRINTK("waiting for mount name=%.*s",
+ dentry->d_name.len, dentry->d_name.name);
+ status = autofs_wait(sbi, dentry, NFY_MOUNT);
+ DPRINTK("mount wait done status=%d", status);
+ }
+ ino->last_used = jiffies;
+ return status;
+}
+
+static int do_expire_wait(struct dentry *dentry)
+{
+ struct dentry *expiring;
+
+ expiring = autofs_lookup_expiring(dentry);
+ if (!expiring)
+ return autofs_expire_wait(dentry);
+ else {
+ /*
+ * If we are racing with expire the request might not
+ * be quite complete, but the directory has been removed
+ * so it must have been successful, just wait for it.
+ */
+ autofs_expire_wait(expiring);
+ autofs_del_expiring(expiring);
+ dput(expiring);
+ }
+ return 0;
+}
+
+static struct dentry *autofs_mountpoint_changed(struct path *path)
+{
+ struct dentry *dentry = path->dentry;
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+
+ /*
+ * If this is an indirect mount the dentry could have gone away
+ * as a result of an expire and a new one created.
+ */
+ if (autofs_type_indirect(sbi->type) && d_unhashed(dentry)) {
+ struct dentry *parent = dentry->d_parent;
+ struct autofs_info *ino;
+ struct dentry *new = d_lookup(parent, &dentry->d_name);
+ if (!new)
+ return NULL;
+ ino = autofs_dentry_ino(new);
+ ino->last_used = jiffies;
+ dput(path->dentry);
+ path->dentry = new;
+ }
+ return path->dentry;
+}
+
+static struct vfsmount *autofs_d_automount(struct path *path)
+{
+ struct dentry *dentry = path->dentry;
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ int status;
+
+ DPRINTK("dentry=%p %.*s",
+ dentry, dentry->d_name.len, dentry->d_name.name);
+
+ /* The daemon never triggers a mount. */
+ if (autofs_oz_mode(sbi))
+ return NULL;
+
+ /*
+ * If an expire request is pending everyone must wait.
+ * If the expire fails we're still mounted so continue
+ * the follow and return. A return of -EAGAIN (which only
+ * happens with indirect mounts) means the expire completed
+ * and the directory was removed, so just go ahead and try
+ * the mount.
+ */
+ status = do_expire_wait(dentry);
+ if (status && status != -EAGAIN)
+ return NULL;
+
+ /* Callback to the daemon to perform the mount or wait */
+ spin_lock(&sbi->fs_lock);
+ if (ino->flags & AUTOFS_INF_PENDING) {
+ spin_unlock(&sbi->fs_lock);
+ status = autofs_mount_wait(dentry);
+ if (status)
+ return ERR_PTR(status);
+ goto done;
+ }
+
+ /*
+ * If the dentry is a symlink it's equivalent to a directory
+ * having d_mountpoint() true, so there's no need to call back
+ * to the daemon.
+ */
+ if (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode)) {
+ spin_unlock(&sbi->fs_lock);
+ goto done;
+ }
+
+ if (!d_mountpoint(dentry)) {
+ /*
+ * It's possible that user space hasn't removed directories
+ * after umounting a rootless multi-mount, although it
+ * should. For v5 have_submounts() is sufficient to handle
+ * this because the leaves of the directory tree under the
+ * mount never trigger mounts themselves (they have an autofs
+ * trigger mount mounted on them). But v4 pseudo direct mounts
+ * do need the leaves to to trigger mounts. In this case we
+ * have no choice but to use the list_empty() check and
+ * require user space behave.
+ */
+ if (sbi->version > 4) {
+ if (have_submounts(dentry)) {
+ spin_unlock(&sbi->fs_lock);
+ goto done;
+ }
+ } else {
+ if (!simple_empty(dentry)) {
+ spin_unlock(&sbi->fs_lock);
+ goto done;
+ }
+ }
+ ino->flags |= AUTOFS_INF_PENDING;
+ spin_unlock(&sbi->fs_lock);
+ status = autofs_mount_wait(dentry);
+ spin_lock(&sbi->fs_lock);
+ ino->flags &= ~AUTOFS_INF_PENDING;
+ if (status) {
+ spin_unlock(&sbi->fs_lock);
+ return ERR_PTR(status);
+ }
+ }
+ spin_unlock(&sbi->fs_lock);
+done:
+ /* Mount succeeded, check if we ended up with a new dentry */
+ dentry = autofs_mountpoint_changed(path);
+ if (!dentry)
+ return ERR_PTR(-ENOENT);
+
+ return NULL;
+}
+
+static int autofs_d_manage(struct dentry *dentry, bool rcu_walk)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ int status;
+
+ DPRINTK("dentry=%p %.*s",
+ dentry, dentry->d_name.len, dentry->d_name.name);
+
+ /* The daemon never waits. */
+ if (autofs_oz_mode(sbi)) {
+ if (rcu_walk)
+ return 0;
+ if (!d_mountpoint(dentry))
+ return -EISDIR;
+ return 0;
+ }
+
+ /* We need to sleep, so we need pathwalk to be in ref-mode */
+ if (rcu_walk)
+ return -ECHILD;
+
+ /* Wait for pending expires */
+ do_expire_wait(dentry);
+
+ /*
+ * This dentry may be under construction so wait on mount
+ * completion.
+ */
+ status = autofs_mount_wait(dentry);
+ if (status)
+ return status;
+
+ spin_lock(&sbi->fs_lock);
+ /*
+ * If the dentry has been selected for expire while we slept
+ * on the lock then it might go away. We'll deal with that in
+ * ->d_automount() and wait on a new mount if the expire
+ * succeeds or return here if it doesn't (since there's no
+ * mount to follow with a rootless multi-mount).
+ */
+ if (!(ino->flags & AUTOFS_INF_EXPIRING)) {
+ /*
+ * Any needed mounting has been completed and the path
+ * updated so check if this is a rootless multi-mount so
+ * we can avoid needless calls ->d_automount() and avoid
+ * an incorrect ELOOP error return.
+ */
+ if ((!d_mountpoint(dentry) && !simple_empty(dentry)) ||
+ (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode)))
+ status = -EISDIR;
+ }
+ spin_unlock(&sbi->fs_lock);
+
+ return status;
+}
+
+/* Lookups in the root directory */
+static struct dentry *autofs_lookup(struct inode *dir,
+ struct dentry *dentry, unsigned int flags)
+{
+ struct autofs_sb_info *sbi;
+ struct autofs_info *ino;
+ struct dentry *active;
+
+ DPRINTK("name = %.*s", dentry->d_name.len, dentry->d_name.name);
+
+ /* File name too long to exist */
+ if (dentry->d_name.len > NAME_MAX)
+ return ERR_PTR(-ENAMETOOLONG);
+
+ sbi = autofs_sbi(dir->i_sb);
+
+ DPRINTK("pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d",
+ current->pid, task_pgrp_nr(current), sbi->catatonic,
+ autofs_oz_mode(sbi));
+
+ active = autofs_lookup_active(dentry);
+ if (active) {
+ return active;
+ } else {
+ /*
+ * A dentry that is not within the root can never trigger a
+ * mount operation, unless the directory already exists, so we
+ * can return fail immediately. The daemon however does need
+ * to create directories within the file system.
+ */
+ if (!autofs_oz_mode(sbi) && !IS_ROOT(dentry->d_parent))
+ return ERR_PTR(-ENOENT);
+
+ /* Mark entries in the root as mount triggers */
+ if (autofs_type_indirect(sbi->type) && IS_ROOT(dentry->d_parent))
+ __managed_dentry_set_managed(dentry);
+
+ ino = autofs_new_ino(sbi);
+ if (!ino)
+ return ERR_PTR(-ENOMEM);
+
+ dentry->d_fsdata = ino;
+ ino->dentry = dentry;
+
+ autofs_add_active(dentry);
+
+ d_instantiate(dentry, NULL);
+ }
+ return NULL;
+}
+
+static int autofs_dir_symlink(struct inode *dir,
+ struct dentry *dentry,
+ const char *symname)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ struct autofs_info *p_ino;
+ struct inode *inode;
+ size_t size = strlen(symname);
+ char *cp;
+
+ DPRINTK("%s <- %.*s", symname,
+ dentry->d_name.len, dentry->d_name.name);
+
+ if (!autofs_oz_mode(sbi))
+ return -EACCES;
+
+ BUG_ON(!ino);
+
+ autofs_clean_ino(ino);
+
+ autofs_del_active(dentry);
+
+ cp = kmalloc(size + 1, GFP_KERNEL);
+ if (!cp)
+ return -ENOMEM;
+
+ strcpy(cp, symname);
+
+ inode = autofs_get_inode(dir->i_sb, S_IFLNK | 0555);
+ if (!inode) {
+ kfree(cp);
+ if (!dentry->d_fsdata)
+ kfree(ino);
+ return -ENOMEM;
+ }
+ inode->i_private = cp;
+ inode->i_size = size;
+ d_add(dentry, inode);
+
+ dget(dentry);
+ atomic_inc(&ino->count);
+ p_ino = autofs_dentry_ino(dentry->d_parent);
+ if (p_ino && dentry->d_parent != dentry)
+ atomic_inc(&p_ino->count);
+
+ dir->i_mtime = CURRENT_TIME;
+
+ return 0;
+}
+
+/*
+ * NOTE!
+ *
+ * Normal filesystems would do a "d_delete()" to tell the VFS dcache
+ * that the file no longer exists. However, doing that means that the
+ * VFS layer can turn the dentry into a negative dentry. We don't want
+ * this, because the unlink is probably the result of an expire.
+ * We simply d_drop it and add it to a expiring list in the super block,
+ * which allows the dentry lookup to check for an incomplete expire.
+ *
+ * If a process is blocked on the dentry waiting for the expire to finish,
+ * it will invalidate the dentry and try to mount with a new one.
+ *
+ * Also see autofs_dir_rmdir()..
+ */
+static int autofs_dir_unlink(struct inode *dir, struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ struct autofs_info *p_ino;
+
+ /* This allows root to remove symlinks */
+ if (!autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (atomic_dec_and_test(&ino->count)) {
+ p_ino = autofs_dentry_ino(dentry->d_parent);
+ if (p_ino && dentry->d_parent != dentry)
+ atomic_dec(&p_ino->count);
+ }
+ dput(ino->dentry);
+
+ dentry->d_inode->i_size = 0;
+ clear_nlink(dentry->d_inode);
+
+ dir->i_mtime = CURRENT_TIME;
+
+ spin_lock(&sbi->lookup_lock);
+ __autofs_add_expiring(dentry);
+ d_drop(dentry);
+ spin_unlock(&sbi->lookup_lock);
+
+ return 0;
+}
+
+/*
+ * Version 4 of autofs provides a pseudo direct mount implementation
+ * that relies on directories at the leaves of a directory tree under
+ * an indirect mount to trigger mounts. To allow for this we need to
+ * set the DMANAGED_AUTOMOUNT and DMANAGED_TRANSIT flags on the leaves
+ * of the directory tree. There is no need to clear the automount flag
+ * following a mount or restore it after an expire because these mounts
+ * are always covered. However, it is necessary to ensure that these
+ * flags are clear on non-empty directories to avoid unnecessary calls
+ * during path walks.
+ */
+static void autofs_set_leaf_automount_flags(struct dentry *dentry)
+{
+ struct dentry *parent;
+
+ /* root and dentrys in the root are already handled */
+ if (IS_ROOT(dentry->d_parent))
+ return;
+
+ managed_dentry_set_managed(dentry);
+
+ parent = dentry->d_parent;
+ /* only consider parents below dentrys in the root */
+ if (IS_ROOT(parent->d_parent))
+ return;
+ managed_dentry_clear_managed(parent);
+ return;
+}
+
+static void autofs_clear_leaf_automount_flags(struct dentry *dentry)
+{
+ struct list_head *d_child;
+ struct dentry *parent;
+
+ /* flags for dentrys in the root are handled elsewhere */
+ if (IS_ROOT(dentry->d_parent))
+ return;
+
+ managed_dentry_clear_managed(dentry);
+
+ parent = dentry->d_parent;
+ /* only consider parents below dentrys in the root */
+ if (IS_ROOT(parent->d_parent))
+ return;
+ d_child = &dentry->d_u.d_child;
+ /* Set parent managed if it's becoming empty */
+ if (d_child->next == &parent->d_subdirs &&
+ d_child->prev == &parent->d_subdirs)
+ managed_dentry_set_managed(parent);
+ return;
+}
+
+static int autofs_dir_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ struct autofs_info *p_ino;
+
+ DPRINTK("dentry %p, removing %.*s",
+ dentry, dentry->d_name.len, dentry->d_name.name);
+
+ if (!autofs_oz_mode(sbi))
+ return -EACCES;
+
+ spin_lock(&sbi->lookup_lock);
+ if (!simple_empty(dentry)) {
+ spin_unlock(&sbi->lookup_lock);
+ return -ENOTEMPTY;
+ }
+ __autofs_add_expiring(dentry);
+ d_drop(dentry);
+ spin_unlock(&sbi->lookup_lock);
+
+ if (sbi->version < 5)
+ autofs_clear_leaf_automount_flags(dentry);
+
+ if (atomic_dec_and_test(&ino->count)) {
+ p_ino = autofs_dentry_ino(dentry->d_parent);
+ if (p_ino && dentry->d_parent != dentry)
+ atomic_dec(&p_ino->count);
+ }
+ dput(ino->dentry);
+ dentry->d_inode->i_size = 0;
+ clear_nlink(dentry->d_inode);
+
+ if (dir->i_nlink)
+ drop_nlink(dir);
+
+ return 0;
+}
+
+static int autofs_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
+ struct autofs_info *ino = autofs_dentry_ino(dentry);
+ struct autofs_info *p_ino;
+ struct inode *inode;
+
+ if (!autofs_oz_mode(sbi))
+ return -EACCES;
+
+ DPRINTK("dentry %p, creating %.*s",
+ dentry, dentry->d_name.len, dentry->d_name.name);
+
+ BUG_ON(!ino);
+
+ autofs_clean_ino(ino);
+
+ autofs_del_active(dentry);
+
+ inode = autofs_get_inode(dir->i_sb, S_IFDIR | 0555);
+ if (!inode)
+ return -ENOMEM;
+ d_add(dentry, inode);
+
+ if (sbi->version < 5)
+ autofs_set_leaf_automount_flags(dentry);
+
+ dget(dentry);
+ atomic_inc(&ino->count);
+ p_ino = autofs_dentry_ino(dentry->d_parent);
+ if (p_ino && dentry->d_parent != dentry)
+ atomic_inc(&p_ino->count);
+ inc_nlink(dir);
+ dir->i_mtime = CURRENT_TIME;
+
+ return 0;
+}
+
+/* Get/set timeout ioctl() operation */
+#ifdef CONFIG_COMPAT
+static inline int autofs_compat_get_set_timeout(struct autofs_sb_info *sbi,
+ compat_ulong_t __user *p)
+{
+ int rv;
+ unsigned long ntimeout;
+
+ if ((rv = get_user(ntimeout, p)) ||
+ (rv = put_user(sbi->exp_timeout/HZ, p)))
+ return rv;
+
+ if (ntimeout > UINT_MAX/HZ)
+ sbi->exp_timeout = 0;
+ else
+ sbi->exp_timeout = ntimeout * HZ;
+
+ return 0;
+}
+#endif
+
+static inline int autofs_get_set_timeout(struct autofs_sb_info *sbi,
+ unsigned long __user *p)
+{
+ int rv;
+ unsigned long ntimeout;
+
+ if ((rv = get_user(ntimeout, p)) ||
+ (rv = put_user(sbi->exp_timeout/HZ, p)))
+ return rv;
+
+ if (ntimeout > ULONG_MAX/HZ)
+ sbi->exp_timeout = 0;
+ else
+ sbi->exp_timeout = ntimeout * HZ;
+
+ return 0;
+}
+
+/* Return protocol version */
+static inline int autofs_get_protover(struct autofs_sb_info *sbi,
+ int __user *p)
+{
+ return put_user(sbi->version, p);
+}
+
+/* Return protocol sub version */
+static inline int autofs_get_protosubver(struct autofs_sb_info *sbi,
+ int __user *p)
+{
+ return put_user(sbi->sub_version, p);
+}
+
+/*
+* Tells the daemon whether it can umount the autofs mount.
+*/
+static inline int autofs_ask_umount(struct vfsmount *mnt, int __user *p)
+{
+ int status = 0;
+
+ if (may_umount(mnt))
+ status = 1;
+
+ DPRINTK("returning %d", status);
+
+ status = put_user(status, p);
+
+ return status;
+}
+
+/* Identify autofs_dentries - this is so we can tell if there's
+ an extra dentry refcount or not. We only hold a refcount on the
+ dentry if its non-negative (ie, d_inode != NULL)
+*/
+int is_autofs_dentry(struct dentry *dentry)
+{
+ return dentry && dentry->d_inode &&
+ dentry->d_op == &autofs_dentry_operations &&
+ dentry->d_fsdata != NULL;
+}
+
+/*
+ * ioctl()'s on the root directory is the chief method for the daemon to
+ * generate kernel reactions
+ */
+static int autofs_root_ioctl_unlocked(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
+ void __user *p = (void __user *)arg;
+
+ DPRINTK("cmd = 0x%08x, arg = 0x%08lx, sbi = %p, pgrp = %u",
+ cmd,arg,sbi,task_pgrp_nr(current));
+
+ if (_IOC_TYPE(cmd) != _IOC_TYPE(AUTOFS_IOC_FIRST) ||
+ _IOC_NR(cmd) - _IOC_NR(AUTOFS_IOC_FIRST) >= AUTOFS_IOC_COUNT)
+ return -ENOTTY;
+
+ if (!autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ switch(cmd) {
+ case AUTOFS_IOC_READY: /* Wait queue: go ahead and retry */
+ return autofs_wait_release(sbi,(autofs_wqt_t)arg,0);
+ case AUTOFS_IOC_FAIL: /* Wait queue: fail with ENOENT */
+ return autofs_wait_release(sbi,(autofs_wqt_t)arg,-ENOENT);
+ case AUTOFS_IOC_CATATONIC: /* Enter catatonic mode (daemon shutdown) */
+ autofs_catatonic_mode(sbi);
+ return 0;
+ case AUTOFS_IOC_PROTOVER: /* Get protocol version */
+ return autofs_get_protover(sbi, p);
+ case AUTOFS_IOC_PROTOSUBVER: /* Get protocol sub version */
+ return autofs_get_protosubver(sbi, p);
+ case AUTOFS_IOC_SETTIMEOUT:
+ return autofs_get_set_timeout(sbi, p);
+#ifdef CONFIG_COMPAT
+ case AUTOFS_IOC_SETTIMEOUT32:
+ return autofs_compat_get_set_timeout(sbi, p);
+#endif
+
+ case AUTOFS_IOC_ASKUMOUNT:
+ return autofs_ask_umount(filp->f_path.mnt, p);
+
+ /* return a single thing to expire */
+ case AUTOFS_IOC_EXPIRE:
+ return autofs_expire_run(inode->i_sb,filp->f_path.mnt,sbi, p);
+ /* same as above, but can send multiple expires through pipe */
+ case AUTOFS_IOC_EXPIRE_MULTI:
+ return autofs_expire_multi(inode->i_sb,filp->f_path.mnt,sbi, p);
+
+ default:
+ return -ENOSYS;
+ }
+}
+
+static long autofs_root_ioctl(struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ return autofs_root_ioctl_unlocked(inode, filp, cmd, arg);
+}
+
+#ifdef CONFIG_COMPAT
+static long autofs_root_compat_ioctl(struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ int ret;
+
+ if (cmd == AUTOFS_IOC_READY || cmd == AUTOFS_IOC_FAIL)
+ ret = autofs_root_ioctl_unlocked(inode, filp, cmd, arg);
+ else
+ ret = autofs_root_ioctl_unlocked(inode, filp, cmd,
+ (unsigned long) compat_ptr(arg));
+
+ return ret;
+}
+#endif
diff --git a/fs/autofs/symlink.c b/fs/autofs/symlink.c
new file mode 100644
index 0000000..9d728bf
--- /dev/null
+++ b/fs/autofs/symlink.c
@@ -0,0 +1,21 @@
+/*
+ * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include "autofs_i.h"
+
+static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+ nd_set_link(nd, dentry->d_inode->i_private);
+ return NULL;
+}
+
+const struct inode_operations autofs_symlink_inode_operations = {
+ .readlink = generic_readlink,
+ .follow_link = autofs_follow_link
+};
diff --git a/fs/autofs/waitq.c b/fs/autofs/waitq.c
new file mode 100644
index 0000000..8b83761
--- /dev/null
+++ b/fs/autofs/waitq.c
@@ -0,0 +1,570 @@
+/*
+ * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
+ * Copyright 2001-2006 Ian Kent <raven@themaw.net>
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <linux/signal.h>
+#include <linux/file.h>
+#include "autofs_i.h"
+
+/* We make this a static variable rather than a part of the superblock; it
+ is better if we don't reassign numbers easily even across filesystems */
+static autofs_wqt_t autofs_next_wait_queue = 1;
+
+/* These are the signals we allow interrupting a pending mount */
+#define SHUTDOWN_SIGS (sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGQUIT))
+
+void autofs_catatonic_mode(struct autofs_sb_info *sbi)
+{
+ struct autofs_wait_queue *wq, *nwq;
+
+ mutex_lock(&sbi->wq_mutex);
+ if (sbi->catatonic) {
+ mutex_unlock(&sbi->wq_mutex);
+ return;
+ }
+
+ DPRINTK("entering catatonic mode");
+
+ sbi->catatonic = 1;
+ wq = sbi->queues;
+ sbi->queues = NULL; /* Erase all wait queues */
+ while (wq) {
+ nwq = wq->next;
+ wq->status = -ENOENT; /* Magic is gone - report failure */
+ kfree(wq->name.name);
+ wq->name.name = NULL;
+ wq->wait_ctr--;
+ wake_up_interruptible(&wq->queue);
+ wq = nwq;
+ }
+ fput(sbi->pipe); /* Close the pipe */
+ sbi->pipe = NULL;
+ sbi->pipefd = -1;
+ mutex_unlock(&sbi->wq_mutex);
+}
+
+static int autofs_write(struct autofs_sb_info *sbi,
+ struct file *file, const void *addr, int bytes)
+{
+ unsigned long sigpipe, flags;
+ mm_segment_t fs;
+ const char *data = (const char *)addr;
+ ssize_t wr = 0;
+
+ sigpipe = sigismember(¤t->pending.signal, SIGPIPE);
+
+ /* Save pointer to user space and point back to kernel space */
+ fs = get_fs();
+ set_fs(KERNEL_DS);
+
+ mutex_lock(&sbi->pipe_mutex);
+ while (bytes &&
+ (wr = file->f_op->write(file,data,bytes,&file->f_pos)) > 0) {
+ data += wr;
+ bytes -= wr;
+ }
+ mutex_unlock(&sbi->pipe_mutex);
+
+ set_fs(fs);
+
+ /* Keep the currently executing process from receiving a
+ SIGPIPE unless it was already supposed to get one */
+ if (wr == -EPIPE && !sigpipe) {
+ spin_lock_irqsave(¤t->sighand->siglock, flags);
+ sigdelset(¤t->pending.signal, SIGPIPE);
+ recalc_sigpending();
+ spin_unlock_irqrestore(¤t->sighand->siglock, flags);
+ }
+
+ return (bytes > 0);
+}
+
+static void autofs_notify_daemon(struct autofs_sb_info *sbi,
+ struct autofs_wait_queue *wq,
+ int type)
+{
+ union {
+ struct autofs_packet_hdr hdr;
+ union autofs_packet_union v4_pkt;
+ union autofs_v5_packet_union v5_pkt;
+ } pkt;
+ struct file *pipe = NULL;
+ size_t pktsz;
+
+ DPRINTK("wait id = 0x%08lx, name = %.*s, type=%d",
+ (unsigned long) wq->wait_queue_token,
+ wq->name.len, wq->name.name, type);
+
+ memset(&pkt,0,sizeof pkt); /* For security reasons */
+
+ pkt.hdr.proto_version = sbi->version;
+ pkt.hdr.type = type;
+ mutex_lock(&sbi->wq_mutex);
+
+ /* Check if we have become catatonic */
+ if (sbi->catatonic) {
+ mutex_unlock(&sbi->wq_mutex);
+ return;
+ }
+ switch (type) {
+ /* Kernel protocol v4 missing and expire packets */
+ case autofs_ptype_missing:
+ {
+ struct autofs_packet_missing *mp = &pkt.v4_pkt.missing;
+
+ pktsz = sizeof(*mp);
+
+ mp->wait_queue_token = wq->wait_queue_token;
+ mp->len = wq->name.len;
+ memcpy(mp->name, wq->name.name, wq->name.len);
+ mp->name[wq->name.len] = '\0';
+ break;
+ }
+ case autofs_ptype_expire_multi:
+ {
+ struct autofs_packet_expire_multi *ep = &pkt.v4_pkt.expire_multi;
+
+ pktsz = sizeof(*ep);
+
+ ep->wait_queue_token = wq->wait_queue_token;
+ ep->len = wq->name.len;
+ memcpy(ep->name, wq->name.name, wq->name.len);
+ ep->name[wq->name.len] = '\0';
+ break;
+ }
+ /*
+ * Kernel protocol v5 packet for handling indirect and direct
+ * mount missing and expire requests
+ */
+ case autofs_ptype_missing_indirect:
+ case autofs_ptype_expire_indirect:
+ case autofs_ptype_missing_direct:
+ case autofs_ptype_expire_direct:
+ {
+ struct autofs_v5_packet *packet = &pkt.v5_pkt.v5_packet;
+ struct user_namespace *user_ns = sbi->pipe->f_cred->user_ns;
+
+ pktsz = sizeof(*packet);
+
+ packet->wait_queue_token = wq->wait_queue_token;
+ packet->len = wq->name.len;
+ memcpy(packet->name, wq->name.name, wq->name.len);
+ packet->name[wq->name.len] = '\0';
+ packet->dev = wq->dev;
+ packet->ino = wq->ino;
+ packet->uid = from_kuid_munged(user_ns, wq->uid);
+ packet->gid = from_kgid_munged(user_ns, wq->gid);
+ packet->pid = wq->pid;
+ packet->tgid = wq->tgid;
+ break;
+ }
+ default:
+ printk("autofs_notify_daemon: bad type %d!\n", type);
+ mutex_unlock(&sbi->wq_mutex);
+ return;
+ }
+
+ pipe = get_file(sbi->pipe);
+
+ mutex_unlock(&sbi->wq_mutex);
+
+ if (autofs_write(sbi, pipe, &pkt, pktsz))
+ autofs_catatonic_mode(sbi);
+ fput(pipe);
+}
+
+static int autofs_getpath(struct autofs_sb_info *sbi,
+ struct dentry *dentry, char **name)
+{
+ struct dentry *root = sbi->sb->s_root;
+ struct dentry *tmp;
+ char *buf;
+ char *p;
+ int len;
+ unsigned seq;
+
+rename_retry:
+ buf = *name;
+ len = 0;
+
+ seq = read_seqbegin(&rename_lock);
+ rcu_read_lock();
+ spin_lock(&sbi->fs_lock);
+ for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent)
+ len += tmp->d_name.len + 1;
+
+ if (!len || --len > NAME_MAX) {
+ spin_unlock(&sbi->fs_lock);
+ rcu_read_unlock();
+ if (read_seqretry(&rename_lock, seq))
+ goto rename_retry;
+ return 0;
+ }
+
+ *(buf + len) = '\0';
+ p = buf + len - dentry->d_name.len;
+ strncpy(p, dentry->d_name.name, dentry->d_name.len);
+
+ for (tmp = dentry->d_parent; tmp != root ; tmp = tmp->d_parent) {
+ *(--p) = '/';
+ p -= tmp->d_name.len;
+ strncpy(p, tmp->d_name.name, tmp->d_name.len);
+ }
+ spin_unlock(&sbi->fs_lock);
+ rcu_read_unlock();
+ if (read_seqretry(&rename_lock, seq))
+ goto rename_retry;
+
+ return len;
+}
+
+static struct autofs_wait_queue *
+autofs_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
+{
+ struct autofs_wait_queue *wq;
+
+ for (wq = sbi->queues; wq; wq = wq->next) {
+ if (wq->name.hash == qstr->hash &&
+ wq->name.len == qstr->len &&
+ wq->name.name &&
+ !memcmp(wq->name.name, qstr->name, qstr->len))
+ break;
+ }
+ return wq;
+}
+
+/*
+ * Check if we have a valid request.
+ * Returns
+ * 1 if the request should continue.
+ * In this case we can return an autofs_wait_queue entry if one is
+ * found or NULL to idicate a new wait needs to be created.
+ * 0 or a negative errno if the request shouldn't continue.
+ */
+static int validate_request(struct autofs_wait_queue **wait,
+ struct autofs_sb_info *sbi,
+ struct qstr *qstr,
+ struct dentry*dentry, enum autofs_notify notify)
+{
+ struct autofs_wait_queue *wq;
+ struct autofs_info *ino;
+
+ if (sbi->catatonic)
+ return -ENOENT;
+
+ /* Wait in progress, continue; */
+ wq = autofs_find_wait(sbi, qstr);
+ if (wq) {
+ *wait = wq;
+ return 1;
+ }
+
+ *wait = NULL;
+
+ /* If we don't yet have any info this is a new request */
+ ino = autofs_dentry_ino(dentry);
+ if (!ino)
+ return 1;
+
+ /*
+ * If we've been asked to wait on an existing expire (NFY_NONE)
+ * but there is no wait in the queue ...
+ */
+ if (notify == NFY_NONE) {
+ /*
+ * Either we've betean the pending expire to post it's
+ * wait or it finished while we waited on the mutex.
+ * So we need to wait till either, the wait appears
+ * or the expire finishes.
+ */
+
+ while (ino->flags & AUTOFS_INF_EXPIRING) {
+ mutex_unlock(&sbi->wq_mutex);
+ schedule_timeout_interruptible(HZ/10);
+ if (mutex_lock_interruptible(&sbi->wq_mutex))
+ return -EINTR;
+
+ if (sbi->catatonic)
+ return -ENOENT;
+
+ wq = autofs_find_wait(sbi, qstr);
+ if (wq) {
+ *wait = wq;
+ return 1;
+ }
+ }
+
+ /*
+ * Not ideal but the status has already gone. Of the two
+ * cases where we wait on NFY_NONE neither depend on the
+ * return status of the wait.
+ */
+ return 0;
+ }
+
+ /*
+ * If we've been asked to trigger a mount and the request
+ * completed while we waited on the mutex ...
+ */
+ if (notify == NFY_MOUNT) {
+ struct dentry *new = NULL;
+ int valid = 1;
+
+ /*
+ * If the dentry was successfully mounted while we slept
+ * on the wait queue mutex we can return success. If it
+ * isn't mounted (doesn't have submounts for the case of
+ * a multi-mount with no mount at it's base) we can
+ * continue on and create a new request.
+ */
+ if (!IS_ROOT(dentry)) {
+ if (dentry->d_inode && d_unhashed(dentry)) {
+ struct dentry *parent = dentry->d_parent;
+ new = d_lookup(parent, &dentry->d_name);
+ if (new)
+ dentry = new;
+ }
+ }
+ if (have_submounts(dentry))
+ valid = 0;
+
+ if (new)
+ dput(new);
+ return valid;
+ }
+
+ return 1;
+}
+
+int autofs_wait(struct autofs_sb_info *sbi,
+ struct dentry *dentry, enum autofs_notify notify)
+{
+ struct autofs_wait_queue *wq;
+ struct qstr qstr;
+ char *name;
+ int status, ret, type;
+ pid_t pid;
+ pid_t tgid;
+
+ /* In catatonic mode, we don't wait for nobody */
+ if (sbi->catatonic)
+ return -ENOENT;
+
+ /*
+ * Try translating pids to the namespace of the daemon.
+ *
+ * Zero means failure: we are in an unrelated pid namespace.
+ */
+ pid = task_pid_nr_ns(current, ns_of_pid(sbi->oz_pgrp));
+ tgid = task_tgid_nr_ns(current, ns_of_pid(sbi->oz_pgrp));
+ if (pid == 0 || tgid == 0)
+ return -ENOENT;
+
+ if (!dentry->d_inode) {
+ /*
+ * A wait for a negative dentry is invalid for certain
+ * cases. A direct or offset mount "always" has its mount
+ * point directory created and so the request dentry must
+ * be positive or the map key doesn't exist. The situation
+ * is very similar for indirect mounts except only dentrys
+ * in the root of the autofs file system may be negative.
+ */
+ if (autofs_type_trigger(sbi->type))
+ return -ENOENT;
+ else if (!IS_ROOT(dentry->d_parent))
+ return -ENOENT;
+ }
+
+ name = kmalloc(NAME_MAX + 1, GFP_KERNEL);
+ if (!name)
+ return -ENOMEM;
+
+ /* If this is a direct mount request create a dummy name */
+ if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
+ qstr.len = sprintf(name, "%p", dentry);
+ else {
+ qstr.len = autofs_getpath(sbi, dentry, &name);
+ if (!qstr.len) {
+ kfree(name);
+ return -ENOENT;
+ }
+ }
+ qstr.name = name;
+ qstr.hash = full_name_hash(name, qstr.len);
+
+ if (mutex_lock_interruptible(&sbi->wq_mutex)) {
+ kfree(qstr.name);
+ return -EINTR;
+ }
+
+ ret = validate_request(&wq, sbi, &qstr, dentry, notify);
+ if (ret <= 0) {
+ if (ret != -EINTR)
+ mutex_unlock(&sbi->wq_mutex);
+ kfree(qstr.name);
+ return ret;
+ }
+
+ if (!wq) {
+ /* Create a new wait queue */
+ wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
+ if (!wq) {
+ kfree(qstr.name);
+ mutex_unlock(&sbi->wq_mutex);
+ return -ENOMEM;
+ }
+
+ wq->wait_queue_token = autofs_next_wait_queue;
+ if (++autofs_next_wait_queue == 0)
+ autofs_next_wait_queue = 1;
+ wq->next = sbi->queues;
+ sbi->queues = wq;
+ init_waitqueue_head(&wq->queue);
+ memcpy(&wq->name, &qstr, sizeof(struct qstr));
+ wq->dev = autofs_get_dev(sbi);
+ wq->ino = autofs_get_ino(sbi);
+ wq->uid = current_uid();
+ wq->gid = current_gid();
+ wq->pid = pid;
+ wq->tgid = tgid;
+ wq->status = -EINTR; /* Status return if interrupted */
+ wq->wait_ctr = 2;
+ mutex_unlock(&sbi->wq_mutex);
+
+ if (sbi->version < 5) {
+ if (notify == NFY_MOUNT)
+ type = autofs_ptype_missing;
+ else
+ type = autofs_ptype_expire_multi;
+ } else {
+ if (notify == NFY_MOUNT)
+ type = autofs_type_trigger(sbi->type) ?
+ autofs_ptype_missing_direct :
+ autofs_ptype_missing_indirect;
+ else
+ type = autofs_type_trigger(sbi->type) ?
+ autofs_ptype_expire_direct :
+ autofs_ptype_expire_indirect;
+ }
+
+ DPRINTK("new wait id = 0x%08lx, name = %.*s, nfy=%d\n",
+ (unsigned long) wq->wait_queue_token, wq->name.len,
+ wq->name.name, notify);
+
+ /* autofs_notify_daemon() may block */
+ autofs_notify_daemon(sbi, wq, type);
+ } else {
+ wq->wait_ctr++;
+ mutex_unlock(&sbi->wq_mutex);
+ kfree(qstr.name);
+ DPRINTK("existing wait id = 0x%08lx, name = %.*s, nfy=%d",
+ (unsigned long) wq->wait_queue_token, wq->name.len,
+ wq->name.name, notify);
+ }
+
+ /*
+ * wq->name.name is NULL iff the lock is already released
+ * or the mount has been made catatonic.
+ */
+ if (wq->name.name) {
+ /* Block all but "shutdown" signals while waiting */
+ sigset_t oldset;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(¤t->sighand->siglock, irqflags);
+ oldset = current->blocked;
+ siginitsetinv(¤t->blocked, SHUTDOWN_SIGS & ~oldset.sig[0]);
+ recalc_sigpending();
+ spin_unlock_irqrestore(¤t->sighand->siglock, irqflags);
+
+ wait_event_interruptible(wq->queue, wq->name.name == NULL);
+
+ spin_lock_irqsave(¤t->sighand->siglock, irqflags);
+ current->blocked = oldset;
+ recalc_sigpending();
+ spin_unlock_irqrestore(¤t->sighand->siglock, irqflags);
+ } else {
+ DPRINTK("skipped sleeping");
+ }
+
+ status = wq->status;
+
+ /*
+ * For direct and offset mounts we need to track the requester's
+ * uid and gid in the dentry info struct. This is so it can be
+ * supplied, on request, by the misc device ioctl interface.
+ * This is needed during daemon resatart when reconnecting
+ * to existing, active, autofs mounts. The uid and gid (and
+ * related string values) may be used for macro substitution
+ * in autofs mount maps.
+ */
+ if (!status) {
+ struct autofs_info *ino;
+ struct dentry *de = NULL;
+
+ /* direct mount or browsable map */
+ ino = autofs_dentry_ino(dentry);
+ if (!ino) {
+ /* If not lookup actual dentry used */
+ de = d_lookup(dentry->d_parent, &dentry->d_name);
+ if (de)
+ ino = autofs_dentry_ino(de);
+ }
+
+ /* Set mount requester */
+ if (ino) {
+ spin_lock(&sbi->fs_lock);
+ ino->uid = wq->uid;
+ ino->gid = wq->gid;
+ spin_unlock(&sbi->fs_lock);
+ }
+
+ if (de)
+ dput(de);
+ }
+
+ /* Are we the last process to need status? */
+ mutex_lock(&sbi->wq_mutex);
+ if (!--wq->wait_ctr)
+ kfree(wq);
+ mutex_unlock(&sbi->wq_mutex);
+
+ return status;
+}
+
+
+int autofs_wait_release(struct autofs_sb_info *sbi,
+ autofs_wqt_t wait_queue_token, int status)
+{
+ struct autofs_wait_queue *wq, **wql;
+
+ mutex_lock(&sbi->wq_mutex);
+ for (wql = &sbi->queues; (wq = *wql) != NULL; wql = &wq->next) {
+ if (wq->wait_queue_token == wait_queue_token)
+ break;
+ }
+
+ if (!wq) {
+ mutex_unlock(&sbi->wq_mutex);
+ return -EINVAL;
+ }
+
+ *wql = wq->next; /* Unlink from chain */
+ kfree(wq->name.name);
+ wq->name.name = NULL; /* Do not wait on this queue */
+ wq->status = status;
+ wake_up_interruptible(&wq->queue);
+ if (!--wq->wait_ctr)
+ kfree(wq);
+ mutex_unlock(&sbi->wq_mutex);
+
+ return 0;
+}
diff --git a/fs/autofs4/Kconfig b/fs/autofs4/Kconfig
index 1204d63..0e1167a 100644
--- a/fs/autofs4/Kconfig
+++ b/fs/autofs4/Kconfig
@@ -1,5 +1,5 @@
config AUTOFS4_FS
- tristate "Kernel automounter version 4 support (also supports v3)"
+ tristate "Kernel automounter support (supports v3, v4 and v5)"
help
The automounter is a tool to automatically mount remote file systems
on demand. This implementation is partially kernel-based to reduce
@@ -7,14 +7,25 @@ config AUTOFS4_FS
automounter (amd), which is a pure user space daemon.
To use the automounter you need the user-space tools from
- <ftp://ftp.kernel.org/pub/linux/daemons/autofs/v4/>; you also
- want to answer Y to "NFS file system support", below.
+ <ftp://ftp.kernel.org/pub/linux/daemons/autofs/>; you also want
+ to answer Y to "NFS file system support", below.
- To compile this support as a module, choose M here: the module will be
- called autofs4. You will need to add "alias autofs autofs4" to your
- modules configuration file.
+ This module is in the process of being renamed from autofs4 to autofs
+ since is now the only module that provides the autofs file system and
+ the module is not version 4 specific.
+
+ It is now built from the source located in fs/autofs and this directory
+ and the configuration entry will be removed two kernel version from the
+ inclusion of this change.
+
+ Changes that will need to be made should be limited to:
+ - source include statments should be changed from autofs_fs4.h to
+ autofs_fs.h since these two header file have been merged.
+ - user space scripts that manually load autofs4.ko should be changed
+ to load autofs.ko. Since the module directory name and the module
+ name itself are the same now there is no need to manually load
+ module.
+ - any "alias autofs autofs4" will need to be removed.
+
+ Please configure AUTOFS_FS instead of AUTOFS4_FS from now on.
- If you are not a part of a fairly large, distributed network or
- don't have a laptop which needs to dynamically reconfigure to the
- local network, you probably do not need an automounter, and can say
- N here.
diff --git a/fs/autofs4/Makefile b/fs/autofs4/Makefile
index a811c1f..bd4a535 100644
--- a/fs/autofs4/Makefile
+++ b/fs/autofs4/Makefile
@@ -4,4 +4,12 @@
obj-$(CONFIG_AUTOFS4_FS) += autofs4.o
-autofs4-objs := init.o inode.o root.o symlink.o waitq.o expire.o dev-ioctl.o
+autofs4-y := ../autofs/init.o
+autofs4-y += ../autofs/inode.o
+autofs4-y += ../autofs/root.o
+autofs4-y += ../autofs/symlink.o
+autofs4-y += ../autofs/waitq.o
+autofs4-y += ../autofs/expire.o
+autofs4-y += ../autofs/dev-ioctl.o
+
+EXTRA_CFLAGS := -I$(src)/../autofs
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
deleted file mode 100644
index dcdd1d7..0000000
--- a/fs/autofs4/autofs_i.h
+++ /dev/null
@@ -1,341 +0,0 @@
-/*
- * Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
- * Copyright 2005-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ----------------------------------------------------------------------- */
-
-/* Internal header file for autofs */
-
-#include <linux/auto_fs.h>
-#include <linux/auto_dev-ioctl.h>
-#include <linux/mutex.h>
-#include <linux/spinlock.h>
-#include <linux/list.h>
-
-/* This is the range of ioctl() numbers we claim as ours */
-#define AUTOFS_IOC_FIRST AUTOFS_IOC_READY
-#define AUTOFS_IOC_COUNT 32
-
-#define AUTOFS_DEV_IOCTL_IOC_FIRST (AUTOFS_DEV_IOCTL_VERSION)
-#define AUTOFS_DEV_IOCTL_IOC_COUNT (AUTOFS_IOC_COUNT - 11)
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/string.h>
-#include <linux/wait.h>
-#include <linux/sched.h>
-#include <linux/mount.h>
-#include <linux/namei.h>
-#include <asm/current.h>
-#include <asm/uaccess.h>
-
-/* #define DEBUG */
-
-#define DPRINTK(fmt, ...) \
- pr_debug("pid %d: %s: " fmt "\n", \
- current->pid, __func__, ##__VA_ARGS__)
-
-#define AUTOFS_WARN(fmt, ...) \
- printk(KERN_WARNING "pid %d: %s: " fmt "\n", \
- current->pid, __func__, ##__VA_ARGS__)
-
-#define AUTOFS_ERROR(fmt, ...) \
- printk(KERN_ERR "pid %d: %s: " fmt "\n", \
- current->pid, __func__, ##__VA_ARGS__)
-
-/*
- * Unified info structure. This is pointed to by both the dentry and
- * inode structures. Each file in the filesystem has an instance of this
- * structure. It holds a reference to the dentry, so dentries are never
- * flushed while the file exists. All name lookups are dealt with at the
- * dentry level, although the filesystem can interfere in the validation
- * process. Readdir is implemented by traversing the dentry lists.
- */
-struct autofs_info {
- struct dentry *dentry;
- struct inode *inode;
-
- int flags;
-
- struct completion expire_complete;
-
- struct list_head active;
- int active_count;
-
- struct list_head expiring;
-
- struct autofs_sb_info *sbi;
- unsigned long last_used;
- atomic_t count;
-
- kuid_t uid;
- kgid_t gid;
-};
-
-#define AUTOFS_INF_EXPIRING (1<<0) /* dentry in the process of expiring */
-#define AUTOFS_INF_PENDING (1<<2) /* dentry pending mount */
-
-struct autofs_wait_queue {
- wait_queue_head_t queue;
- struct autofs_wait_queue *next;
- autofs_wqt_t wait_queue_token;
- /* We use the following to see what we are waiting for */
- struct qstr name;
- u32 dev;
- u64 ino;
- kuid_t uid;
- kgid_t gid;
- pid_t pid;
- pid_t tgid;
- /* This is for status reporting upon return */
- int status;
- unsigned int wait_ctr;
-};
-
-#define AUTOFS_SBI_MAGIC 0x6d4a556d
-
-struct autofs_sb_info {
- u32 magic;
- int pipefd;
- struct file *pipe;
- struct pid *oz_pgrp;
- int catatonic;
- int version;
- int sub_version;
- int min_proto;
- int max_proto;
- unsigned long exp_timeout;
- unsigned int type;
- int reghost_enabled;
- int needs_reghost;
- struct super_block *sb;
- struct mutex wq_mutex;
- struct mutex pipe_mutex;
- spinlock_t fs_lock;
- struct autofs_wait_queue *queues; /* Wait queue pointer */
- spinlock_t lookup_lock;
- struct list_head active_list;
- struct list_head expiring_list;
-};
-
-static inline struct autofs_sb_info *autofs_sbi(struct super_block *sb)
-{
- return (struct autofs_sb_info *)(sb->s_fs_info);
-}
-
-static inline struct autofs_info *autofs_dentry_ino(struct dentry *dentry)
-{
- return (struct autofs_info *)(dentry->d_fsdata);
-}
-
-/* autofs_oz_mode(): do we see the man behind the curtain? (The
- processes which do manipulations for us in user space sees the raw
- filesystem without "magic".) */
-
-static inline int autofs_oz_mode(struct autofs_sb_info *sbi)
-{
- return sbi->catatonic || task_pgrp(current) == sbi->oz_pgrp;
-}
-
-/* Does a dentry have some pending activity? */
-static inline int autofs_ispending(struct dentry *dentry)
-{
- struct autofs_info *inf = autofs_dentry_ino(dentry);
-
- if (inf->flags & AUTOFS_INF_PENDING)
- return 1;
-
- if (inf->flags & AUTOFS_INF_EXPIRING)
- return 1;
-
- return 0;
-}
-
-struct inode *autofs_get_inode(struct super_block *, umode_t);
-void autofs_free_ino(struct autofs_info *);
-
-/* Expiration */
-int is_autofs_dentry(struct dentry *);
-int autofs_expire_wait(struct dentry *dentry);
-int autofs_expire_run(struct super_block *, struct vfsmount *,
- struct autofs_sb_info *,
- struct autofs_packet_expire __user *);
-int autofs_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int when);
-int autofs_expire_multi(struct super_block *, struct vfsmount *,
- struct autofs_sb_info *, int __user *);
-struct dentry *autofs_expire_direct(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int how);
-struct dentry *autofs_expire_indirect(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int how);
-
-/* Device node initialization */
-
-int autofs_dev_ioctl_init(void);
-void autofs_dev_ioctl_exit(void);
-
-/* Operations structures */
-
-extern const struct inode_operations autofs_symlink_inode_operations;
-extern const struct inode_operations autofs_dir_inode_operations;
-extern const struct file_operations autofs_dir_operations;
-extern const struct file_operations autofs_root_operations;
-extern const struct dentry_operations autofs_dentry_operations;
-
-/* VFS automount flags management functions */
-
-static inline void __managed_dentry_set_automount(struct dentry *dentry)
-{
- dentry->d_flags |= DCACHE_NEED_AUTOMOUNT;
-}
-
-static inline void managed_dentry_set_automount(struct dentry *dentry)
-{
- spin_lock(&dentry->d_lock);
- __managed_dentry_set_automount(dentry);
- spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_clear_automount(struct dentry *dentry)
-{
- dentry->d_flags &= ~DCACHE_NEED_AUTOMOUNT;
-}
-
-static inline void managed_dentry_clear_automount(struct dentry *dentry)
-{
- spin_lock(&dentry->d_lock);
- __managed_dentry_clear_automount(dentry);
- spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_set_transit(struct dentry *dentry)
-{
- dentry->d_flags |= DCACHE_MANAGE_TRANSIT;
-}
-
-static inline void managed_dentry_set_transit(struct dentry *dentry)
-{
- spin_lock(&dentry->d_lock);
- __managed_dentry_set_transit(dentry);
- spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_clear_transit(struct dentry *dentry)
-{
- dentry->d_flags &= ~DCACHE_MANAGE_TRANSIT;
-}
-
-static inline void managed_dentry_clear_transit(struct dentry *dentry)
-{
- spin_lock(&dentry->d_lock);
- __managed_dentry_clear_transit(dentry);
- spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_set_managed(struct dentry *dentry)
-{
- dentry->d_flags |= (DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT);
-}
-
-static inline void managed_dentry_set_managed(struct dentry *dentry)
-{
- spin_lock(&dentry->d_lock);
- __managed_dentry_set_managed(dentry);
- spin_unlock(&dentry->d_lock);
-}
-
-static inline void __managed_dentry_clear_managed(struct dentry *dentry)
-{
- dentry->d_flags &= ~(DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT);
-}
-
-static inline void managed_dentry_clear_managed(struct dentry *dentry)
-{
- spin_lock(&dentry->d_lock);
- __managed_dentry_clear_managed(dentry);
- spin_unlock(&dentry->d_lock);
-}
-
-/* Initializing function */
-
-int autofs_fill_super(struct super_block *, void *, int);
-struct autofs_info *autofs_new_ino(struct autofs_sb_info *);
-void autofs_clean_ino(struct autofs_info *);
-
-static inline int autofs_prepare_pipe(struct file *pipe)
-{
- if (!pipe->f_op || !pipe->f_op->write)
- return -EINVAL;
- if (!S_ISFIFO(file_inode(pipe)->i_mode))
- return -EINVAL;
- /* We want a packet pipe */
- pipe->f_flags |= O_DIRECT;
- return 0;
-}
-
-/* Queue management functions */
-
-int autofs_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);
-int autofs_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
-void autofs_catatonic_mode(struct autofs_sb_info *);
-
-static inline u32 autofs_get_dev(struct autofs_sb_info *sbi)
-{
- return new_encode_dev(sbi->sb->s_dev);
-}
-
-static inline u64 autofs_get_ino(struct autofs_sb_info *sbi)
-{
- return sbi->sb->s_root->d_inode->i_ino;
-}
-
-static inline int simple_positive(struct dentry *dentry)
-{
- return dentry->d_inode && !d_unhashed(dentry);
-}
-
-static inline void __autofs_add_expiring(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- if (ino) {
- if (list_empty(&ino->expiring))
- list_add(&ino->expiring, &sbi->expiring_list);
- }
- return;
-}
-
-static inline void autofs_add_expiring(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- if (ino) {
- spin_lock(&sbi->lookup_lock);
- if (list_empty(&ino->expiring))
- list_add(&ino->expiring, &sbi->expiring_list);
- spin_unlock(&sbi->lookup_lock);
- }
- return;
-}
-
-static inline void autofs_del_expiring(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- if (ino) {
- spin_lock(&sbi->lookup_lock);
- if (!list_empty(&ino->expiring))
- list_del_init(&ino->expiring);
- spin_unlock(&sbi->lookup_lock);
- }
- return;
-}
-
-extern void autofs_kill_sb(struct super_block *);
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
deleted file mode 100644
index 024389a..0000000
--- a/fs/autofs4/dev-ioctl.c
+++ /dev/null
@@ -1,760 +0,0 @@
-/*
- * Copyright 2008 Red Hat, Inc. All rights reserved.
- * Copyright 2008 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- */
-
-#include <linux/module.h>
-#include <linux/vmalloc.h>
-#include <linux/miscdevice.h>
-#include <linux/init.h>
-#include <linux/wait.h>
-#include <linux/namei.h>
-#include <linux/fcntl.h>
-#include <linux/file.h>
-#include <linux/fdtable.h>
-#include <linux/sched.h>
-#include <linux/compat.h>
-#include <linux/syscalls.h>
-#include <linux/magic.h>
-#include <linux/dcache.h>
-#include <linux/uaccess.h>
-#include <linux/slab.h>
-
-#include "autofs_i.h"
-
-/*
- * This module implements an interface for routing autofs ioctl control
- * commands via a miscellaneous device file.
- *
- * The alternate interface is needed because we need to be able open
- * an ioctl file descriptor on an autofs mount that may be covered by
- * another mount. This situation arises when starting automount(8)
- * or other user space daemon which uses direct mounts or offset
- * mounts (used for autofs lazy mount/umount of nested mount trees),
- * which have been left busy at at service shutdown.
- */
-
-#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
-
-typedef int (*ioctl_fn)(struct file *, struct autofs_sb_info *,
- struct autofs_dev_ioctl *);
-
-static int check_name(const char *name)
-{
- if (!strchr(name, '/'))
- return -EINVAL;
- return 0;
-}
-
-/*
- * Check a string doesn't overrun the chunk of
- * memory we copied from user land.
- */
-static int invalid_str(char *str, size_t size)
-{
- if (memchr(str, 0, size))
- return 0;
- return -EINVAL;
-}
-
-/*
- * Check that the user compiled against correct version of autofs
- * misc device code.
- *
- * As well as checking the version compatibility this always copies
- * the kernel interface version out.
- */
-static int check_dev_ioctl_version(int cmd, struct autofs_dev_ioctl *param)
-{
- int err = 0;
-
- if ((AUTOFS_DEV_IOCTL_VERSION_MAJOR != param->ver_major) ||
- (AUTOFS_DEV_IOCTL_VERSION_MINOR < param->ver_minor)) {
- AUTOFS_WARN("ioctl control interface version mismatch: "
- "kernel(%u.%u), user(%u.%u), cmd(%d)",
- AUTOFS_DEV_IOCTL_VERSION_MAJOR,
- AUTOFS_DEV_IOCTL_VERSION_MINOR,
- param->ver_major, param->ver_minor, cmd);
- err = -EINVAL;
- }
-
- /* Fill in the kernel version. */
- param->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
- param->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
-
- return err;
-}
-
-/*
- * Copy parameter control struct, including a possible path allocated
- * at the end of the struct.
- */
-static struct autofs_dev_ioctl *copy_dev_ioctl(struct autofs_dev_ioctl __user *in)
-{
- struct autofs_dev_ioctl tmp;
-
- if (copy_from_user(&tmp, in, sizeof(tmp)))
- return ERR_PTR(-EFAULT);
-
- if (tmp.size < sizeof(tmp))
- return ERR_PTR(-EINVAL);
-
- return memdup_user(in, tmp.size);
-}
-
-static inline void free_dev_ioctl(struct autofs_dev_ioctl *param)
-{
- kfree(param);
- return;
-}
-
-/*
- * Check sanity of parameter control fields and if a path is present
- * check that it is terminated and contains at least one "/".
- */
-static int validate_dev_ioctl(int cmd, struct autofs_dev_ioctl *param)
-{
- int err;
-
- err = check_dev_ioctl_version(cmd, param);
- if (err) {
- AUTOFS_WARN("invalid device control module version "
- "supplied for cmd(0x%08x)", cmd);
- goto out;
- }
-
- if (param->size > sizeof(*param)) {
- err = invalid_str(param->path, param->size - sizeof(*param));
- if (err) {
- AUTOFS_WARN(
- "path string terminator missing for cmd(0x%08x)",
- cmd);
- goto out;
- }
-
- err = check_name(param->path);
- if (err) {
- AUTOFS_WARN("invalid path supplied for cmd(0x%08x)",
- cmd);
- goto out;
- }
- }
-
- err = 0;
-out:
- return err;
-}
-
-/*
- * Get the autofs super block info struct from the file opened on
- * the autofs mount point.
- */
-static struct autofs_sb_info *autofs_dev_ioctl_sbi(struct file *f)
-{
- struct autofs_sb_info *sbi = NULL;
- struct inode *inode;
-
- if (f) {
- inode = file_inode(f);
- sbi = autofs_sbi(inode->i_sb);
- }
- return sbi;
-}
-
-/* Return autofs module protocol version */
-static int autofs_dev_ioctl_protover(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- param->protover.version = sbi->version;
- return 0;
-}
-
-/* Return autofs module protocol sub version */
-static int autofs_dev_ioctl_protosubver(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- param->protosubver.sub_version = sbi->sub_version;
- return 0;
-}
-
-static int find_autofs_mount(const char *pathname,
- struct path *res,
- int test(struct path *path, void *data),
- void *data)
-{
- struct path path;
- int err = kern_path(pathname, 0, &path);
- if (err)
- return err;
- err = -ENOENT;
- while (path.dentry == path.mnt->mnt_root) {
- if (path.dentry->d_sb->s_magic == AUTOFS_SUPER_MAGIC) {
- if (test(&path, data)) {
- path_get(&path);
- if (!err) /* already found some */
- path_put(res);
- *res = path;
- err = 0;
- }
- }
- if (!follow_up(&path))
- break;
- }
- path_put(&path);
- return err;
-}
-
-static int test_by_dev(struct path *path, void *p)
-{
- return path->dentry->d_sb->s_dev == *(dev_t *)p;
-}
-
-static int test_by_type(struct path *path, void *p)
-{
- struct autofs_info *ino = autofs_dentry_ino(path->dentry);
- return ino && ino->sbi->type & *(unsigned *)p;
-}
-
-/*
- * Open a file descriptor on the autofs mount point corresponding
- * to the given path and device number (aka. new_encode_dev(sb->s_dev)).
- */
-static int autofs_dev_ioctl_open_mountpoint(const char *name, dev_t devid)
-{
- int err, fd;
-
- fd = get_unused_fd_flags(O_CLOEXEC);
- if (likely(fd >= 0)) {
- struct file *filp;
- struct path path;
-
- err = find_autofs_mount(name, &path, test_by_dev, &devid);
- if (err)
- goto out;
-
- /*
- * Find autofs super block that has the device number
- * corresponding to the autofs fs we want to open.
- */
-
- filp = dentry_open(&path, O_RDONLY, current_cred());
- path_put(&path);
- if (IS_ERR(filp)) {
- err = PTR_ERR(filp);
- goto out;
- }
-
- fd_install(fd, filp);
- }
-
- return fd;
-
-out:
- put_unused_fd(fd);
- return err;
-}
-
-/* Open a file descriptor on an autofs mount point */
-static int autofs_dev_ioctl_openmount(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- const char *path;
- dev_t devid;
- int err, fd;
-
- /* param->path has already been checked */
- if (!param->openmount.devid)
- return -EINVAL;
-
- param->ioctlfd = -1;
-
- path = param->path;
- devid = new_decode_dev(param->openmount.devid);
-
- err = 0;
- fd = autofs_dev_ioctl_open_mountpoint(path, devid);
- if (unlikely(fd < 0)) {
- err = fd;
- goto out;
- }
-
- param->ioctlfd = fd;
-out:
- return err;
-}
-
-/* Close file descriptor allocated above (user can also use close(2)). */
-static int autofs_dev_ioctl_closemount(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- return sys_close(param->ioctlfd);
-}
-
-/*
- * Send "ready" status for an existing wait (either a mount or an expire
- * request).
- */
-static int autofs_dev_ioctl_ready(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- autofs_wqt_t token;
-
- token = (autofs_wqt_t) param->ready.token;
- return autofs_wait_release(sbi, token, 0);
-}
-
-/*
- * Send "fail" status for an existing wait (either a mount or an expire
- * request).
- */
-static int autofs_dev_ioctl_fail(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- autofs_wqt_t token;
- int status;
-
- token = (autofs_wqt_t) param->fail.token;
- status = param->fail.status ? param->fail.status : -ENOENT;
- return autofs_wait_release(sbi, token, status);
-}
-
-/*
- * Set the pipe fd for kernel communication to the daemon.
- *
- * Normally this is set at mount using an option but if we
- * are reconnecting to a busy mount then we need to use this
- * to tell the autofs mount about the new kernel pipe fd. In
- * order to protect mounts against incorrectly setting the
- * pipefd we also require that the autofs mount be catatonic.
- *
- * This also sets the process group id used to identify the
- * controlling process (eg. the owning automount(8) daemon).
- */
-static int autofs_dev_ioctl_setpipefd(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- int pipefd;
- int err = 0;
- struct pid *new_pid = NULL;
-
- if (param->setpipefd.pipefd == -1)
- return -EINVAL;
-
- pipefd = param->setpipefd.pipefd;
-
- mutex_lock(&sbi->wq_mutex);
- if (!sbi->catatonic) {
- mutex_unlock(&sbi->wq_mutex);
- return -EBUSY;
- } else {
- struct file *pipe;
-
- new_pid = get_task_pid(current, PIDTYPE_PGID);
-
- if (ns_of_pid(new_pid) != ns_of_pid(sbi->oz_pgrp)) {
- AUTOFS_WARN("Not allowed to change PID namespace");
- err = -EINVAL;
- goto out;
- }
-
- pipe = fget(pipefd);
- if (!pipe) {
- err = -EBADF;
- goto out;
- }
- if (autofs_prepare_pipe(pipe) < 0) {
- err = -EPIPE;
- fput(pipe);
- goto out;
- }
- swap(sbi->oz_pgrp, new_pid);
- sbi->pipefd = pipefd;
- sbi->pipe = pipe;
- sbi->catatonic = 0;
- }
-out:
- put_pid(new_pid);
- mutex_unlock(&sbi->wq_mutex);
- return err;
-}
-
-/*
- * Make the autofs mount point catatonic, no longer responsive to
- * mount requests. Also closes the kernel pipe file descriptor.
- */
-static int autofs_dev_ioctl_catatonic(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- autofs_catatonic_mode(sbi);
- return 0;
-}
-
-/* Set the autofs mount timeout */
-static int autofs_dev_ioctl_timeout(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- unsigned long timeout;
-
- timeout = param->timeout.timeout;
- param->timeout.timeout = sbi->exp_timeout / HZ;
- sbi->exp_timeout = timeout * HZ;
- return 0;
-}
-
-/*
- * Return the uid and gid of the last request for the mount
- *
- * When reconstructing an autofs mount tree with active mounts
- * we need to re-connect to mounts that may have used the original
- * process uid and gid (or string variations of them) for mount
- * lookups within the map entry.
- */
-static int autofs_dev_ioctl_requester(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- struct autofs_info *ino;
- struct path path;
- dev_t devid;
- int err = -ENOENT;
-
- if (param->size <= sizeof(*param)) {
- err = -EINVAL;
- goto out;
- }
-
- devid = sbi->sb->s_dev;
-
- param->requester.uid = param->requester.gid = -1;
-
- err = find_autofs_mount(param->path, &path, test_by_dev, &devid);
- if (err)
- goto out;
-
- ino = autofs_dentry_ino(path.dentry);
- if (ino) {
- err = 0;
- autofs_expire_wait(path.dentry);
- spin_lock(&sbi->fs_lock);
- param->requester.uid = from_kuid_munged(current_user_ns(), ino->uid);
- param->requester.gid = from_kgid_munged(current_user_ns(), ino->gid);
- spin_unlock(&sbi->fs_lock);
- }
- path_put(&path);
-out:
- return err;
-}
-
-/*
- * Call repeatedly until it returns -EAGAIN, meaning there's nothing
- * more that can be done.
- */
-static int autofs_dev_ioctl_expire(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- struct vfsmount *mnt;
- int how;
-
- how = param->expire.how;
- mnt = fp->f_path.mnt;
-
- return autofs_do_expire_multi(sbi->sb, mnt, sbi, how);
-}
-
-/* Check if autofs mount point is in use */
-static int autofs_dev_ioctl_askumount(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- param->askumount.may_umount = 0;
- if (may_umount(fp->f_path.mnt))
- param->askumount.may_umount = 1;
- return 0;
-}
-
-/*
- * Check if the given path is a mountpoint.
- *
- * If we are supplied with the file descriptor of an autofs
- * mount we're looking for a specific mount. In this case
- * the path is considered a mountpoint if it is itself a
- * mountpoint or contains a mount, such as a multi-mount
- * without a root mount. In this case we return 1 if the
- * path is a mount point and the super magic of the covering
- * mount if there is one or 0 if it isn't a mountpoint.
- *
- * If we aren't supplied with a file descriptor then we
- * lookup the nameidata of the path and check if it is the
- * root of a mount. If a type is given we are looking for
- * a particular autofs mount and if we don't find a match
- * we return fail. If the located nameidata path is the
- * root of a mount we return 1 along with the super magic
- * of the mount or 0 otherwise.
- *
- * In both cases the the device number (as returned by
- * new_encode_dev()) is also returned.
- */
-static int autofs_dev_ioctl_ismountpoint(struct file *fp,
- struct autofs_sb_info *sbi,
- struct autofs_dev_ioctl *param)
-{
- struct path path;
- const char *name;
- unsigned int type;
- unsigned int devid, magic;
- int err = -ENOENT;
-
- if (param->size <= sizeof(*param)) {
- err = -EINVAL;
- goto out;
- }
-
- name = param->path;
- type = param->ismountpoint.in.type;
-
- param->ismountpoint.out.devid = devid = 0;
- param->ismountpoint.out.magic = magic = 0;
-
- if (!fp || param->ioctlfd == -1) {
- if (autofs_type_any(type))
- err = kern_path(name, LOOKUP_FOLLOW, &path);
- else
- err = find_autofs_mount(name, &path, test_by_type, &type);
- if (err)
- goto out;
- devid = new_encode_dev(path.dentry->d_sb->s_dev);
- err = 0;
- if (path.mnt->mnt_root == path.dentry) {
- err = 1;
- magic = path.dentry->d_sb->s_magic;
- }
- } else {
- dev_t dev = sbi->sb->s_dev;
-
- err = find_autofs_mount(name, &path, test_by_dev, &dev);
- if (err)
- goto out;
-
- devid = new_encode_dev(dev);
-
- err = have_submounts(path.dentry);
-
- if (follow_down_one(&path))
- magic = path.dentry->d_sb->s_magic;
- }
-
- param->ismountpoint.out.devid = devid;
- param->ismountpoint.out.magic = magic;
- path_put(&path);
-out:
- return err;
-}
-
-/*
- * Our range of ioctl numbers isn't 0 based so we need to shift
- * the array index by _IOC_NR(AUTOFS_CTL_IOC_FIRST) for the table
- * lookup.
- */
-#define cmd_idx(cmd) (cmd - _IOC_NR(AUTOFS_DEV_IOCTL_IOC_FIRST))
-
-static ioctl_fn lookup_dev_ioctl(unsigned int cmd)
-{
- static struct {
- int cmd;
- ioctl_fn fn;
- } _ioctls[] = {
- {cmd_idx(AUTOFS_DEV_IOCTL_VERSION_CMD), NULL},
- {cmd_idx(AUTOFS_DEV_IOCTL_PROTOVER_CMD),
- autofs_dev_ioctl_protover},
- {cmd_idx(AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD),
- autofs_dev_ioctl_protosubver},
- {cmd_idx(AUTOFS_DEV_IOCTL_OPENMOUNT_CMD),
- autofs_dev_ioctl_openmount},
- {cmd_idx(AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD),
- autofs_dev_ioctl_closemount},
- {cmd_idx(AUTOFS_DEV_IOCTL_READY_CMD),
- autofs_dev_ioctl_ready},
- {cmd_idx(AUTOFS_DEV_IOCTL_FAIL_CMD),
- autofs_dev_ioctl_fail},
- {cmd_idx(AUTOFS_DEV_IOCTL_SETPIPEFD_CMD),
- autofs_dev_ioctl_setpipefd},
- {cmd_idx(AUTOFS_DEV_IOCTL_CATATONIC_CMD),
- autofs_dev_ioctl_catatonic},
- {cmd_idx(AUTOFS_DEV_IOCTL_TIMEOUT_CMD),
- autofs_dev_ioctl_timeout},
- {cmd_idx(AUTOFS_DEV_IOCTL_REQUESTER_CMD),
- autofs_dev_ioctl_requester},
- {cmd_idx(AUTOFS_DEV_IOCTL_EXPIRE_CMD),
- autofs_dev_ioctl_expire},
- {cmd_idx(AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD),
- autofs_dev_ioctl_askumount},
- {cmd_idx(AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD),
- autofs_dev_ioctl_ismountpoint}
- };
- unsigned int idx = cmd_idx(cmd);
-
- return (idx >= ARRAY_SIZE(_ioctls)) ? NULL : _ioctls[idx].fn;
-}
-
-/* ioctl dispatcher */
-static int _autofs_dev_ioctl(unsigned int command, struct autofs_dev_ioctl __user *user)
-{
- struct autofs_dev_ioctl *param;
- struct file *fp;
- struct autofs_sb_info *sbi;
- unsigned int cmd_first, cmd;
- ioctl_fn fn = NULL;
- int err = 0;
-
- /* only root can play with this */
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- cmd_first = _IOC_NR(AUTOFS_DEV_IOCTL_IOC_FIRST);
- cmd = _IOC_NR(command);
-
- if (_IOC_TYPE(command) != _IOC_TYPE(AUTOFS_DEV_IOCTL_IOC_FIRST) ||
- cmd - cmd_first >= AUTOFS_DEV_IOCTL_IOC_COUNT) {
- return -ENOTTY;
- }
-
- /* Copy the parameters into kernel space. */
- param = copy_dev_ioctl(user);
- if (IS_ERR(param))
- return PTR_ERR(param);
-
- err = validate_dev_ioctl(command, param);
- if (err)
- goto out;
-
- /* The validate routine above always sets the version */
- if (cmd == AUTOFS_DEV_IOCTL_VERSION_CMD)
- goto done;
-
- fn = lookup_dev_ioctl(cmd);
- if (!fn) {
- AUTOFS_WARN("unknown command 0x%08x", command);
- return -ENOTTY;
- }
-
- fp = NULL;
- sbi = NULL;
-
- /*
- * For obvious reasons the openmount can't have a file
- * descriptor yet. We don't take a reference to the
- * file during close to allow for immediate release.
- */
- if (cmd != AUTOFS_DEV_IOCTL_OPENMOUNT_CMD &&
- cmd != AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD) {
- fp = fget(param->ioctlfd);
- if (!fp) {
- if (cmd == AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD)
- goto cont;
- err = -EBADF;
- goto out;
- }
-
- if (!fp->f_op) {
- err = -ENOTTY;
- fput(fp);
- goto out;
- }
-
- sbi = autofs_dev_ioctl_sbi(fp);
- if (!sbi || sbi->magic != AUTOFS_SBI_MAGIC) {
- err = -EINVAL;
- fput(fp);
- goto out;
- }
-
- /*
- * Admin needs to be able to set the mount catatonic in
- * order to be able to perform the re-open.
- */
- if (!autofs_oz_mode(sbi) &&
- cmd != AUTOFS_DEV_IOCTL_CATATONIC_CMD) {
- err = -EACCES;
- fput(fp);
- goto out;
- }
- }
-cont:
- err = fn(fp, sbi, param);
-
- if (fp)
- fput(fp);
-done:
- if (err >= 0 && copy_to_user(user, param, AUTOFS_DEV_IOCTL_SIZE))
- err = -EFAULT;
-out:
- free_dev_ioctl(param);
- return err;
-}
-
-static long autofs_dev_ioctl(struct file *file, uint command, ulong u)
-{
- int err;
- err = _autofs_dev_ioctl(command, (struct autofs_dev_ioctl __user *) u);
- return (long) err;
-}
-
-#ifdef CONFIG_COMPAT
-static long autofs_dev_ioctl_compat(struct file *file, uint command, ulong u)
-{
- return (long) autofs_dev_ioctl(file, command, (ulong) compat_ptr(u));
-}
-#else
-#define autofs_dev_ioctl_compat NULL
-#endif
-
-static const struct file_operations _dev_ioctl_fops = {
- .unlocked_ioctl = autofs_dev_ioctl,
- .compat_ioctl = autofs_dev_ioctl_compat,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
-};
-
-static struct miscdevice _autofs_dev_ioctl_misc = {
- .minor = AUTOFS_MINOR,
- .name = AUTOFS_DEVICE_NAME,
- .fops = &_dev_ioctl_fops
-};
-
-MODULE_ALIAS_MISCDEV(AUTOFS_MINOR);
-MODULE_ALIAS("devname:autofs");
-
-/* Register/deregister misc character device */
-int autofs_dev_ioctl_init(void)
-{
- int r;
-
- r = misc_register(&_autofs_dev_ioctl_misc);
- if (r) {
- AUTOFS_ERROR("misc_register failed for control device");
- return r;
- }
-
- return 0;
-}
-
-void autofs_dev_ioctl_exit(void)
-{
- misc_deregister(&_autofs_dev_ioctl_misc);
- return;
-}
-
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c
deleted file mode 100644
index 58fba1b..0000000
--- a/fs/autofs4/expire.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/*
- * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
- * Copyright 2001-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ------------------------------------------------------------------------- */
-
-#include "autofs_i.h"
-
-static unsigned long now;
-
-/* Check if a dentry can be expired */
-static inline int autofs_can_expire(struct dentry *dentry,
- unsigned long timeout, int do_now)
-{
- struct autofs_info *ino = autofs_dentry_ino(dentry);
-
- /* dentry in the process of being deleted */
- if (ino == NULL)
- return 0;
-
- if (!do_now) {
- /* Too young to die */
- if (!timeout || time_after(ino->last_used + timeout, now))
- return 0;
-
- /* update last_used here :-
- - obviously makes sense if it is in use now
- - less obviously, prevents rapid-fire expire
- attempts if expire fails the first time */
- ino->last_used = now;
- }
- return 1;
-}
-
-/* Check a mount point for busyness */
-static int autofs_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
-{
- struct dentry *top = dentry;
- struct path path = {.mnt = mnt, .dentry = dentry};
- int status = 1;
-
- DPRINTK("dentry %p %.*s",
- dentry, (int)dentry->d_name.len, dentry->d_name.name);
-
- path_get(&path);
-
- if (!follow_down_one(&path))
- goto done;
-
- if (is_autofs_dentry(path.dentry)) {
- struct autofs_sb_info *sbi = autofs_sbi(path.dentry->d_sb);
-
- /* This is an autofs submount, we can't expire it */
- if (autofs_type_indirect(sbi->type))
- goto done;
- }
-
- /* Update the expiry counter if fs is busy */
- if (!may_umount_tree(path.mnt)) {
- struct autofs_info *ino = autofs_dentry_ino(top);
- ino->last_used = jiffies;
- goto done;
- }
-
- status = 0;
-done:
- DPRINTK("returning = %d", status);
- path_put(&path);
- return status;
-}
-
-/*
- * Calculate and dget next entry in the subdirs list under root.
- */
-static struct dentry *get_next_positive_subdir(struct dentry *prev,
- struct dentry *root)
-{
- struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
- struct list_head *next;
- struct dentry *q;
-
- spin_lock(&sbi->lookup_lock);
- spin_lock(&root->d_lock);
-
- if (prev)
- next = prev->d_u.d_child.next;
- else {
- prev = dget_dlock(root);
- next = prev->d_subdirs.next;
- }
-
-cont:
- if (next == &root->d_subdirs) {
- spin_unlock(&root->d_lock);
- spin_unlock(&sbi->lookup_lock);
- dput(prev);
- return NULL;
- }
-
- q = list_entry(next, struct dentry, d_u.d_child);
-
- spin_lock_nested(&q->d_lock, DENTRY_D_LOCK_NESTED);
- /* Already gone or negative dentry (under construction) - try next */
- if (q->d_count == 0 || !simple_positive(q)) {
- spin_unlock(&q->d_lock);
- next = q->d_u.d_child.next;
- goto cont;
- }
- dget_dlock(q);
- spin_unlock(&q->d_lock);
- spin_unlock(&root->d_lock);
- spin_unlock(&sbi->lookup_lock);
-
- dput(prev);
-
- return q;
-}
-
-/*
- * Calculate and dget next entry in top down tree traversal.
- */
-static struct dentry *get_next_positive_dentry(struct dentry *prev,
- struct dentry *root)
-{
- struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
- struct list_head *next;
- struct dentry *p, *ret;
-
- if (prev == NULL)
- return dget(root);
-
- spin_lock(&sbi->lookup_lock);
-relock:
- p = prev;
- spin_lock(&p->d_lock);
-again:
- next = p->d_subdirs.next;
- if (next == &p->d_subdirs) {
- while (1) {
- struct dentry *parent;
-
- if (p == root) {
- spin_unlock(&p->d_lock);
- spin_unlock(&sbi->lookup_lock);
- dput(prev);
- return NULL;
- }
-
- parent = p->d_parent;
- if (!spin_trylock(&parent->d_lock)) {
- spin_unlock(&p->d_lock);
- cpu_relax();
- goto relock;
- }
- spin_unlock(&p->d_lock);
- next = p->d_u.d_child.next;
- p = parent;
- if (next != &parent->d_subdirs)
- break;
- }
- }
- ret = list_entry(next, struct dentry, d_u.d_child);
-
- spin_lock_nested(&ret->d_lock, DENTRY_D_LOCK_NESTED);
- /* Negative dentry - try next */
- if (!simple_positive(ret)) {
- spin_unlock(&p->d_lock);
- lock_set_subclass(&ret->d_lock.dep_map, 0, _RET_IP_);
- p = ret;
- goto again;
- }
- dget_dlock(ret);
- spin_unlock(&ret->d_lock);
- spin_unlock(&p->d_lock);
- spin_unlock(&sbi->lookup_lock);
-
- dput(prev);
-
- return ret;
-}
-
-/*
- * Check a direct mount point for busyness.
- * Direct mounts have similar expiry semantics to tree mounts.
- * The tree is not busy iff no mountpoints are busy and there are no
- * autofs submounts.
- */
-static int autofs_direct_busy(struct vfsmount *mnt,
- struct dentry *top,
- unsigned long timeout,
- int do_now)
-{
- DPRINTK("top %p %.*s",
- top, (int) top->d_name.len, top->d_name.name);
-
- /* If it's busy update the expiry counters */
- if (!may_umount_tree(mnt)) {
- struct autofs_info *ino = autofs_dentry_ino(top);
- if (ino)
- ino->last_used = jiffies;
- return 1;
- }
-
- /* Timeout of a direct mount is determined by its top dentry */
- if (!autofs_can_expire(top, timeout, do_now))
- return 1;
-
- return 0;
-}
-
-/*
- * Check a directory tree of mount points for busyness
- * The tree is not busy iff no mountpoints are busy
- */
-static int autofs_tree_busy(struct vfsmount *mnt,
- struct dentry *top,
- unsigned long timeout,
- int do_now)
-{
- struct autofs_info *top_ino = autofs_dentry_ino(top);
- struct dentry *p;
-
- DPRINTK("top %p %.*s",
- top, (int)top->d_name.len, top->d_name.name);
-
- /* Negative dentry - give up */
- if (!simple_positive(top))
- return 1;
-
- p = NULL;
- while ((p = get_next_positive_dentry(p, top))) {
- DPRINTK("dentry %p %.*s",
- p, (int) p->d_name.len, p->d_name.name);
-
- /*
- * Is someone visiting anywhere in the subtree ?
- * If there's no mount we need to check the usage
- * count for the autofs dentry.
- * If the fs is busy update the expiry counter.
- */
- if (d_mountpoint(p)) {
- if (autofs_mount_busy(mnt, p)) {
- top_ino->last_used = jiffies;
- dput(p);
- return 1;
- }
- } else {
- struct autofs_info *ino = autofs_dentry_ino(p);
- unsigned int ino_count = atomic_read(&ino->count);
-
- /*
- * Clean stale dentries below that have not been
- * invalidated after a mount fail during lookup
- */
- d_invalidate(p);
-
- /* allow for dget above and top is already dgot */
- if (p == top)
- ino_count += 2;
- else
- ino_count++;
-
- if (p->d_count > ino_count) {
- top_ino->last_used = jiffies;
- dput(p);
- return 1;
- }
- }
- }
-
- /* Timeout of a tree mount is ultimately determined by its top dentry */
- if (!autofs_can_expire(top, timeout, do_now))
- return 1;
-
- return 0;
-}
-
-static struct dentry *autofs_check_leaves(struct vfsmount *mnt,
- struct dentry *parent,
- unsigned long timeout,
- int do_now)
-{
- struct dentry *p;
-
- DPRINTK("parent %p %.*s",
- parent, (int)parent->d_name.len, parent->d_name.name);
-
- p = NULL;
- while ((p = get_next_positive_dentry(p, parent))) {
- DPRINTK("dentry %p %.*s",
- p, (int) p->d_name.len, p->d_name.name);
-
- if (d_mountpoint(p)) {
- /* Can we umount this guy */
- if (autofs_mount_busy(mnt, p))
- continue;
-
- /* Can we expire this guy */
- if (autofs_can_expire(p, timeout, do_now))
- return p;
- }
- }
- return NULL;
-}
-
-/* Check if we can expire a direct mount (possibly a tree) */
-struct dentry *autofs_expire_direct(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi,
- int how)
-{
- unsigned long timeout;
- struct dentry *root = dget(sb->s_root);
- int do_now = how & AUTOFS_EXP_IMMEDIATE;
- struct autofs_info *ino;
-
- if (!root)
- return NULL;
-
- now = jiffies;
- timeout = sbi->exp_timeout;
-
- spin_lock(&sbi->fs_lock);
- ino = autofs_dentry_ino(root);
- /* No point expiring a pending mount */
- if (ino->flags & AUTOFS_INF_PENDING)
- goto out;
- if (!autofs_direct_busy(mnt, root, timeout, do_now)) {
- struct autofs_info *ino = autofs_dentry_ino(root);
- ino->flags |= AUTOFS_INF_EXPIRING;
- init_completion(&ino->expire_complete);
- spin_unlock(&sbi->fs_lock);
- return root;
- }
-out:
- spin_unlock(&sbi->fs_lock);
- dput(root);
-
- return NULL;
-}
-
-/*
- * Find an eligible tree to time-out
- * A tree is eligible if :-
- * - it is unused by any user process
- * - it has been unused for exp_timeout time
- */
-struct dentry *autofs_expire_indirect(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi,
- int how)
-{
- unsigned long timeout;
- struct dentry *root = sb->s_root;
- struct dentry *dentry;
- struct dentry *expired = NULL;
- int do_now = how & AUTOFS_EXP_IMMEDIATE;
- int exp_leaves = how & AUTOFS_EXP_LEAVES;
- struct autofs_info *ino;
- unsigned int ino_count;
-
- if (!root)
- return NULL;
-
- now = jiffies;
- timeout = sbi->exp_timeout;
-
- dentry = NULL;
- while ((dentry = get_next_positive_subdir(dentry, root))) {
- spin_lock(&sbi->fs_lock);
- ino = autofs_dentry_ino(dentry);
- /* No point expiring a pending mount */
- if (ino->flags & AUTOFS_INF_PENDING)
- goto next;
-
- /*
- * Case 1: (i) indirect mount or top level pseudo direct mount
- * (autofs-4.1).
- * (ii) indirect mount with offset mount, check the "/"
- * offset (autofs-5.0+).
- */
- if (d_mountpoint(dentry)) {
- DPRINTK("checking mountpoint %p %.*s", dentry,
- (int)dentry->d_name.len, dentry->d_name.name);
-
- /* Can we umount this guy */
- if (autofs_mount_busy(mnt, dentry))
- goto next;
-
- /* Can we expire this guy */
- if (autofs_can_expire(dentry, timeout, do_now)) {
- expired = dentry;
- goto found;
- }
- goto next;
- }
-
- if (simple_empty(dentry))
- goto next;
-
- /* Case 2: tree mount, expire iff entire tree is not busy */
- if (!exp_leaves) {
- /* Path walk currently on this dentry? */
- ino_count = atomic_read(&ino->count) + 1;
- if (dentry->d_count > ino_count)
- goto next;
-
- if (!autofs_tree_busy(mnt, dentry, timeout, do_now)) {
- expired = dentry;
- goto found;
- }
- /*
- * Case 3: pseudo direct mount, expire individual leaves
- * (autofs-4.1).
- */
- } else {
- /* Path walk currently on this dentry? */
- ino_count = atomic_read(&ino->count) + 1;
- if (dentry->d_count > ino_count)
- goto next;
-
- expired = autofs_check_leaves(mnt, dentry, timeout, do_now);
- if (expired) {
- dput(dentry);
- goto found;
- }
- }
-next:
- spin_unlock(&sbi->fs_lock);
- }
- return NULL;
-
-found:
- DPRINTK("returning %p %.*s",
- expired, (int)expired->d_name.len, expired->d_name.name);
- ino = autofs_dentry_ino(expired);
- ino->flags |= AUTOFS_INF_EXPIRING;
- init_completion(&ino->expire_complete);
- spin_unlock(&sbi->fs_lock);
- spin_lock(&sbi->lookup_lock);
- spin_lock(&expired->d_parent->d_lock);
- spin_lock_nested(&expired->d_lock, DENTRY_D_LOCK_NESTED);
- list_move(&expired->d_parent->d_subdirs, &expired->d_u.d_child);
- spin_unlock(&expired->d_lock);
- spin_unlock(&expired->d_parent->d_lock);
- spin_unlock(&sbi->lookup_lock);
- return expired;
-}
-
-int autofs_expire_wait(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- int status;
-
- /* Block on any pending expire */
- spin_lock(&sbi->fs_lock);
- if (ino->flags & AUTOFS_INF_EXPIRING) {
- spin_unlock(&sbi->fs_lock);
-
- DPRINTK("waiting for expire %p name=%.*s",
- dentry, dentry->d_name.len, dentry->d_name.name);
-
- status = autofs_wait(sbi, dentry, NFY_NONE);
- wait_for_completion(&ino->expire_complete);
-
- DPRINTK("expire done status=%d", status);
-
- if (d_unhashed(dentry))
- return -EAGAIN;
-
- return status;
- }
- spin_unlock(&sbi->fs_lock);
-
- return 0;
-}
-
-/* Perform an expiry operation */
-int autofs_expire_run(struct super_block *sb,
- struct vfsmount *mnt,
- struct autofs_sb_info *sbi,
- struct autofs_packet_expire __user *pkt_p)
-{
- struct autofs_packet_expire pkt;
- struct autofs_info *ino;
- struct dentry *dentry;
- int ret = 0;
-
- memset(&pkt,0,sizeof pkt);
-
- pkt.hdr.proto_version = sbi->version;
- pkt.hdr.type = autofs_ptype_expire;
-
- if ((dentry = autofs_expire_indirect(sb, mnt, sbi, 0)) == NULL)
- return -EAGAIN;
-
- pkt.len = dentry->d_name.len;
- memcpy(pkt.name, dentry->d_name.name, pkt.len);
- pkt.name[pkt.len] = '\0';
- dput(dentry);
-
- if (copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)))
- ret = -EFAULT;
-
- spin_lock(&sbi->fs_lock);
- ino = autofs_dentry_ino(dentry);
- ino->flags &= ~AUTOFS_INF_EXPIRING;
- complete_all(&ino->expire_complete);
- spin_unlock(&sbi->fs_lock);
-
- return ret;
-}
-
-int autofs_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int when)
-{
- struct dentry *dentry;
- int ret = -EAGAIN;
-
- if (autofs_type_trigger(sbi->type))
- dentry = autofs_expire_direct(sb, mnt, sbi, when);
- else
- dentry = autofs_expire_indirect(sb, mnt, sbi, when);
-
- if (dentry) {
- struct autofs_info *ino = autofs_dentry_ino(dentry);
-
- /* This is synchronous because it makes the daemon a
- little easier */
- ret = autofs_wait(sbi, dentry, NFY_EXPIRE);
-
- spin_lock(&sbi->fs_lock);
- ino->flags &= ~AUTOFS_INF_EXPIRING;
- complete_all(&ino->expire_complete);
- spin_unlock(&sbi->fs_lock);
- dput(dentry);
- }
-
- return ret;
-}
-
-/*
- * Call repeatedly until it returns -EAGAIN, meaning there's nothing
- * more to be done.
- */
-int autofs_expire_multi(struct super_block *sb, struct vfsmount *mnt,
- struct autofs_sb_info *sbi, int __user *arg)
-{
- int do_now = 0;
-
- if (arg && get_user(do_now, arg))
- return -EFAULT;
-
- return autofs_do_expire_multi(sb, mnt, sbi, do_now);
-}
-
diff --git a/fs/autofs4/init.c b/fs/autofs4/init.c
deleted file mode 100644
index 51232a9..0000000
--- a/fs/autofs4/init.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ------------------------------------------------------------------------- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include "autofs_i.h"
-
-static struct dentry *autofs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
-{
- return mount_nodev(fs_type, flags, data, autofs_fill_super);
-}
-
-static struct file_system_type autofs_fs_type = {
- .owner = THIS_MODULE,
- .name = "autofs",
- .mount = autofs_mount,
- .kill_sb = autofs_kill_sb,
-};
-MODULE_ALIAS_FS("autofs");
-
-static int __init init_autofs_fs(void)
-{
- int err;
-
- autofs_dev_ioctl_init();
-
- err = register_filesystem(&autofs_fs_type);
- if (err)
- autofs_dev_ioctl_exit();
-
- return err;
-}
-
-static void __exit exit_autofs_fs(void)
-{
- autofs_dev_ioctl_exit();
- unregister_filesystem(&autofs_fs_type);
-}
-
-module_init(init_autofs_fs)
-module_exit(exit_autofs_fs)
-MODULE_LICENSE("GPL");
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
deleted file mode 100644
index 543389c..0000000
--- a/fs/autofs4/inode.c
+++ /dev/null
@@ -1,368 +0,0 @@
-/*
- * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- * Copyright 2005-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ------------------------------------------------------------------------- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/file.h>
-#include <linux/seq_file.h>
-#include <linux/pagemap.h>
-#include <linux/parser.h>
-#include <linux/bitops.h>
-#include <linux/magic.h>
-#include "autofs_i.h"
-#include <linux/module.h>
-
-struct autofs_info *autofs_new_ino(struct autofs_sb_info *sbi)
-{
- struct autofs_info *ino = kzalloc(sizeof(*ino), GFP_KERNEL);
- if (ino) {
- INIT_LIST_HEAD(&ino->active);
- INIT_LIST_HEAD(&ino->expiring);
- ino->last_used = jiffies;
- ino->sbi = sbi;
- }
- return ino;
-}
-
-void autofs_clean_ino(struct autofs_info *ino)
-{
- ino->uid = GLOBAL_ROOT_UID;
- ino->gid = GLOBAL_ROOT_GID;
- ino->last_used = jiffies;
-}
-
-void autofs_free_ino(struct autofs_info *ino)
-{
- kfree(ino);
-}
-
-void autofs_kill_sb(struct super_block *sb)
-{
- struct autofs_sb_info *sbi = autofs_sbi(sb);
-
- /*
- * In the event of a failure in get_sb_nodev the superblock
- * info is not present so nothing else has been setup, so
- * just call kill_anon_super when we are called from
- * deactivate_super.
- */
- if (!sbi)
- goto out_kill_sb;
-
- /* Free wait queues, close pipe */
- autofs_catatonic_mode(sbi);
-
- put_pid(sbi->oz_pgrp);
-
- sb->s_fs_info = NULL;
- kfree(sbi);
-
-out_kill_sb:
- DPRINTK("shutting down");
- kill_litter_super(sb);
-}
-
-static int autofs_show_options(struct seq_file *m, struct dentry *root)
-{
- struct autofs_sb_info *sbi = autofs_sbi(root->d_sb);
- struct inode *root_inode = root->d_sb->s_root->d_inode;
-
- if (!sbi)
- return 0;
-
- seq_printf(m, ",fd=%d", sbi->pipefd);
- if (!uid_eq(root_inode->i_uid, GLOBAL_ROOT_UID))
- seq_printf(m, ",uid=%u",
- from_kuid_munged(&init_user_ns, root_inode->i_uid));
- if (!gid_eq(root_inode->i_gid, GLOBAL_ROOT_GID))
- seq_printf(m, ",gid=%u",
- from_kgid_munged(&init_user_ns, root_inode->i_gid));
- seq_printf(m, ",pgrp=%d", pid_vnr(sbi->oz_pgrp));
- seq_printf(m, ",timeout=%lu", sbi->exp_timeout/HZ);
- seq_printf(m, ",minproto=%d", sbi->min_proto);
- seq_printf(m, ",maxproto=%d", sbi->max_proto);
-
- if (autofs_type_offset(sbi->type))
- seq_printf(m, ",offset");
- else if (autofs_type_direct(sbi->type))
- seq_printf(m, ",direct");
- else
- seq_printf(m, ",indirect");
-
- return 0;
-}
-
-static void autofs_evict_inode(struct inode *inode)
-{
- clear_inode(inode);
- kfree(inode->i_private);
-}
-
-static const struct super_operations autofs_sops = {
- .statfs = simple_statfs,
- .show_options = autofs_show_options,
- .evict_inode = autofs_evict_inode,
-};
-
-enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto,
- Opt_indirect, Opt_direct, Opt_offset};
-
-static const match_table_t tokens = {
- {Opt_fd, "fd=%u"},
- {Opt_uid, "uid=%u"},
- {Opt_gid, "gid=%u"},
- {Opt_pgrp, "pgrp=%u"},
- {Opt_minproto, "minproto=%u"},
- {Opt_maxproto, "maxproto=%u"},
- {Opt_indirect, "indirect"},
- {Opt_direct, "direct"},
- {Opt_offset, "offset"},
- {Opt_err, NULL}
-};
-
-static int parse_options(char *options, int *pipefd, kuid_t *uid, kgid_t *gid,
- int *pgrp, bool *pgrp_set, unsigned int *type,
- int *minproto, int *maxproto)
-{
- char *p;
- substring_t args[MAX_OPT_ARGS];
- int option;
-
- *uid = current_uid();
- *gid = current_gid();
-
- *minproto = AUTOFS_MIN_PROTO_VERSION;
- *maxproto = AUTOFS_MAX_PROTO_VERSION;
-
- *pipefd = -1;
-
- if (!options)
- return 1;
-
- while ((p = strsep(&options, ",")) != NULL) {
- int token;
- if (!*p)
- continue;
-
- token = match_token(p, tokens, args);
- switch (token) {
- case Opt_fd:
- if (match_int(args, pipefd))
- return 1;
- break;
- case Opt_uid:
- if (match_int(args, &option))
- return 1;
- *uid = make_kuid(current_user_ns(), option);
- if (!uid_valid(*uid))
- return 1;
- break;
- case Opt_gid:
- if (match_int(args, &option))
- return 1;
- *gid = make_kgid(current_user_ns(), option);
- if (!gid_valid(*gid))
- return 1;
- break;
- case Opt_pgrp:
- if (match_int(args, &option))
- return 1;
- *pgrp = option;
- *pgrp_set = true;
- break;
- case Opt_minproto:
- if (match_int(args, &option))
- return 1;
- *minproto = option;
- break;
- case Opt_maxproto:
- if (match_int(args, &option))
- return 1;
- *maxproto = option;
- break;
- case Opt_indirect:
- set_autofs_type_indirect(type);
- break;
- case Opt_direct:
- set_autofs_type_direct(type);
- break;
- case Opt_offset:
- set_autofs_type_offset(type);
- break;
- default:
- return 1;
- }
- }
- return (*pipefd < 0);
-}
-
-int autofs_fill_super(struct super_block *s, void *data, int silent)
-{
- struct inode * root_inode;
- struct dentry * root;
- struct file * pipe;
- int pipefd;
- struct autofs_sb_info *sbi;
- struct autofs_info *ino;
- int pgrp;
- bool pgrp_set = false;
-
- sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
- if (!sbi)
- goto fail_unlock;
- DPRINTK("starting up, sbi = %p",sbi);
-
- s->s_fs_info = sbi;
- sbi->magic = AUTOFS_SBI_MAGIC;
- sbi->pipefd = -1;
- sbi->pipe = NULL;
- sbi->catatonic = 1;
- sbi->exp_timeout = 0;
- sbi->oz_pgrp = NULL;
- sbi->sb = s;
- sbi->version = 0;
- sbi->sub_version = 0;
- set_autofs_type_indirect(&sbi->type);
- sbi->min_proto = 0;
- sbi->max_proto = 0;
- mutex_init(&sbi->wq_mutex);
- mutex_init(&sbi->pipe_mutex);
- spin_lock_init(&sbi->fs_lock);
- sbi->queues = NULL;
- spin_lock_init(&sbi->lookup_lock);
- INIT_LIST_HEAD(&sbi->active_list);
- INIT_LIST_HEAD(&sbi->expiring_list);
- s->s_blocksize = 1024;
- s->s_blocksize_bits = 10;
- s->s_magic = AUTOFS_SUPER_MAGIC;
- s->s_op = &autofs_sops;
- s->s_d_op = &autofs_dentry_operations;
- s->s_time_gran = 1;
-
- /*
- * Get the root inode and dentry, but defer checking for errors.
- */
- ino = autofs_new_ino(sbi);
- if (!ino)
- goto fail_free;
- root_inode = autofs_get_inode(s, S_IFDIR | 0755);
- root = d_make_root(root_inode);
- if (!root)
- goto fail_ino;
- pipe = NULL;
-
- root->d_fsdata = ino;
-
- /* Can this call block? */
- if (parse_options(data, &pipefd, &root_inode->i_uid, &root_inode->i_gid,
- &pgrp, &pgrp_set, &sbi->type, &sbi->min_proto,
- &sbi->max_proto)) {
- printk("autofs: called with bogus options\n");
- goto fail_dput;
- }
-
- if (pgrp_set) {
- sbi->oz_pgrp = find_get_pid(pgrp);
- if (!sbi->oz_pgrp) {
- pr_warn("autofs: could not find process group %d\n",
- pgrp);
- goto fail_dput;
- }
- } else {
- sbi->oz_pgrp = get_task_pid(current, PIDTYPE_PGID);
- }
-
- if (autofs_type_trigger(sbi->type))
- __managed_dentry_set_managed(root);
-
- root_inode->i_fop = &autofs_root_operations;
- root_inode->i_op = &autofs_dir_inode_operations;
-
- /* Couldn't this be tested earlier? */
- if (sbi->max_proto < AUTOFS_MIN_PROTO_VERSION ||
- sbi->min_proto > AUTOFS_MAX_PROTO_VERSION) {
- printk("autofs: kernel does not match daemon version "
- "daemon (%d, %d) kernel (%d, %d)\n",
- sbi->min_proto, sbi->max_proto,
- AUTOFS_MIN_PROTO_VERSION, AUTOFS_MAX_PROTO_VERSION);
- goto fail_dput;
- }
-
- /* Establish highest kernel protocol version */
- if (sbi->max_proto > AUTOFS_MAX_PROTO_VERSION)
- sbi->version = AUTOFS_MAX_PROTO_VERSION;
- else
- sbi->version = sbi->max_proto;
- sbi->sub_version = AUTOFS_PROTO_SUBVERSION;
-
- DPRINTK("pipe fd = %d, pgrp = %u", pipefd, pid_nr(sbi->oz_pgrp));
- pipe = fget(pipefd);
-
- if (!pipe) {
- printk("autofs: could not open pipe file descriptor\n");
- goto fail_dput;
- }
- if (autofs_prepare_pipe(pipe) < 0)
- goto fail_fput;
- sbi->pipe = pipe;
- sbi->pipefd = pipefd;
- sbi->catatonic = 0;
-
- /*
- * Success! Install the root dentry now to indicate completion.
- */
- s->s_root = root;
- return 0;
-
- /*
- * Failure ... clean up.
- */
-fail_fput:
- printk("autofs: pipe file descriptor does not contain proper ops\n");
- fput(pipe);
- /* fall through */
-fail_dput:
- dput(root);
- goto fail_free;
-fail_ino:
- kfree(ino);
-fail_free:
- put_pid(sbi->oz_pgrp);
- kfree(sbi);
- s->s_fs_info = NULL;
-fail_unlock:
- return -EINVAL;
-}
-
-struct inode *autofs_get_inode(struct super_block *sb, umode_t mode)
-{
- struct inode *inode = new_inode(sb);
-
- if (inode == NULL)
- return NULL;
-
- inode->i_mode = mode;
- if (sb->s_root) {
- inode->i_uid = sb->s_root->d_inode->i_uid;
- inode->i_gid = sb->s_root->d_inode->i_gid;
- }
- inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- inode->i_ino = get_next_ino();
-
- if (S_ISDIR(mode)) {
- set_nlink(inode, 2);
- inode->i_op = &autofs_dir_inode_operations;
- inode->i_fop = &autofs_dir_operations;
- } else if (S_ISLNK(mode)) {
- inode->i_op = &autofs_symlink_inode_operations;
- }
-
- return inode;
-}
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
deleted file mode 100644
index 4b64d07..0000000
--- a/fs/autofs4/root.c
+++ /dev/null
@@ -1,898 +0,0 @@
-/*
- * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
- * Copyright 2001-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ------------------------------------------------------------------------- */
-
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/stat.h>
-#include <linux/slab.h>
-#include <linux/param.h>
-#include <linux/time.h>
-#include <linux/compat.h>
-#include <linux/mutex.h>
-
-#include "autofs_i.h"
-
-static int autofs_dir_symlink(struct inode *,struct dentry *,const char *);
-static int autofs_dir_unlink(struct inode *,struct dentry *);
-static int autofs_dir_rmdir(struct inode *,struct dentry *);
-static int autofs_dir_mkdir(struct inode *,struct dentry *,umode_t);
-static long autofs_root_ioctl(struct file *,unsigned int,unsigned long);
-#ifdef CONFIG_COMPAT
-static long autofs_root_compat_ioctl(struct file *,unsigned int,unsigned long);
-#endif
-static int autofs_dir_open(struct inode *inode, struct file *file);
-static struct dentry *autofs_lookup(struct inode *,struct dentry *, unsigned int);
-static struct vfsmount *autofs_d_automount(struct path *);
-static int autofs_d_manage(struct dentry *, bool);
-static void autofs_dentry_release(struct dentry *);
-
-const struct file_operations autofs_root_operations = {
- .open = dcache_dir_open,
- .release = dcache_dir_close,
- .read = generic_read_dir,
- .iterate = dcache_readdir,
- .llseek = dcache_dir_lseek,
- .unlocked_ioctl = autofs_root_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = autofs_root_compat_ioctl,
-#endif
-};
-
-const struct file_operations autofs_dir_operations = {
- .open = autofs_dir_open,
- .release = dcache_dir_close,
- .read = generic_read_dir,
- .iterate = dcache_readdir,
- .llseek = dcache_dir_lseek,
-};
-
-const struct inode_operations autofs_dir_inode_operations = {
- .lookup = autofs_lookup,
- .unlink = autofs_dir_unlink,
- .symlink = autofs_dir_symlink,
- .mkdir = autofs_dir_mkdir,
- .rmdir = autofs_dir_rmdir,
-};
-
-const struct dentry_operations autofs_dentry_operations = {
- .d_automount = autofs_d_automount,
- .d_manage = autofs_d_manage,
- .d_release = autofs_dentry_release,
-};
-
-static void autofs_add_active(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- if (ino) {
- spin_lock(&sbi->lookup_lock);
- if (!ino->active_count) {
- if (list_empty(&ino->active))
- list_add(&ino->active, &sbi->active_list);
- }
- ino->active_count++;
- spin_unlock(&sbi->lookup_lock);
- }
- return;
-}
-
-static void autofs_del_active(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- if (ino) {
- spin_lock(&sbi->lookup_lock);
- ino->active_count--;
- if (!ino->active_count) {
- if (!list_empty(&ino->active))
- list_del_init(&ino->active);
- }
- spin_unlock(&sbi->lookup_lock);
- }
- return;
-}
-
-static int autofs_dir_open(struct inode *inode, struct file *file)
-{
- struct dentry *dentry = file->f_path.dentry;
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
-
- DPRINTK("file=%p dentry=%p %.*s",
- file, dentry, dentry->d_name.len, dentry->d_name.name);
-
- if (autofs_oz_mode(sbi))
- goto out;
-
- /*
- * An empty directory in an autofs file system is always a
- * mount point. The daemon must have failed to mount this
- * during lookup so it doesn't exist. This can happen, for
- * example, if user space returns an incorrect status for a
- * mount request. Otherwise we're doing a readdir on the
- * autofs file system so just let the libfs routines handle
- * it.
- */
- spin_lock(&sbi->lookup_lock);
- if (!d_mountpoint(dentry) && simple_empty(dentry)) {
- spin_unlock(&sbi->lookup_lock);
- return -ENOENT;
- }
- spin_unlock(&sbi->lookup_lock);
-
-out:
- return dcache_dir_open(inode, file);
-}
-
-static void autofs_dentry_release(struct dentry *de)
-{
- struct autofs_info *ino = autofs_dentry_ino(de);
- struct autofs_sb_info *sbi = autofs_sbi(de->d_sb);
-
- DPRINTK("releasing %p", de);
-
- if (!ino)
- return;
-
- if (sbi) {
- spin_lock(&sbi->lookup_lock);
- if (!list_empty(&ino->active))
- list_del(&ino->active);
- if (!list_empty(&ino->expiring))
- list_del(&ino->expiring);
- spin_unlock(&sbi->lookup_lock);
- }
-
- autofs_free_ino(ino);
-}
-
-static struct dentry *autofs_lookup_active(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct dentry *parent = dentry->d_parent;
- struct qstr *name = &dentry->d_name;
- unsigned int len = name->len;
- unsigned int hash = name->hash;
- const unsigned char *str = name->name;
- struct list_head *p, *head;
-
- spin_lock(&sbi->lookup_lock);
- head = &sbi->active_list;
- list_for_each(p, head) {
- struct autofs_info *ino;
- struct dentry *active;
- struct qstr *qstr;
-
- ino = list_entry(p, struct autofs_info, active);
- active = ino->dentry;
-
- spin_lock(&active->d_lock);
-
- /* Already gone? */
- if (active->d_count == 0)
- goto next;
-
- qstr = &active->d_name;
-
- if (active->d_name.hash != hash)
- goto next;
- if (active->d_parent != parent)
- goto next;
-
- if (qstr->len != len)
- goto next;
- if (memcmp(qstr->name, str, len))
- goto next;
-
- if (d_unhashed(active)) {
- dget_dlock(active);
- spin_unlock(&active->d_lock);
- spin_unlock(&sbi->lookup_lock);
- return active;
- }
-next:
- spin_unlock(&active->d_lock);
- }
- spin_unlock(&sbi->lookup_lock);
-
- return NULL;
-}
-
-static struct dentry *autofs_lookup_expiring(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct dentry *parent = dentry->d_parent;
- struct qstr *name = &dentry->d_name;
- unsigned int len = name->len;
- unsigned int hash = name->hash;
- const unsigned char *str = name->name;
- struct list_head *p, *head;
-
- spin_lock(&sbi->lookup_lock);
- head = &sbi->expiring_list;
- list_for_each(p, head) {
- struct autofs_info *ino;
- struct dentry *expiring;
- struct qstr *qstr;
-
- ino = list_entry(p, struct autofs_info, expiring);
- expiring = ino->dentry;
-
- spin_lock(&expiring->d_lock);
-
- /* Bad luck, we've already been dentry_iput */
- if (!expiring->d_inode)
- goto next;
-
- qstr = &expiring->d_name;
-
- if (expiring->d_name.hash != hash)
- goto next;
- if (expiring->d_parent != parent)
- goto next;
-
- if (qstr->len != len)
- goto next;
- if (memcmp(qstr->name, str, len))
- goto next;
-
- if (d_unhashed(expiring)) {
- dget_dlock(expiring);
- spin_unlock(&expiring->d_lock);
- spin_unlock(&sbi->lookup_lock);
- return expiring;
- }
-next:
- spin_unlock(&expiring->d_lock);
- }
- spin_unlock(&sbi->lookup_lock);
-
- return NULL;
-}
-
-static int autofs_mount_wait(struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- int status = 0;
-
- if (ino->flags & AUTOFS_INF_PENDING) {
- DPRINTK("waiting for mount name=%.*s",
- dentry->d_name.len, dentry->d_name.name);
- status = autofs_wait(sbi, dentry, NFY_MOUNT);
- DPRINTK("mount wait done status=%d", status);
- }
- ino->last_used = jiffies;
- return status;
-}
-
-static int do_expire_wait(struct dentry *dentry)
-{
- struct dentry *expiring;
-
- expiring = autofs_lookup_expiring(dentry);
- if (!expiring)
- return autofs_expire_wait(dentry);
- else {
- /*
- * If we are racing with expire the request might not
- * be quite complete, but the directory has been removed
- * so it must have been successful, just wait for it.
- */
- autofs_expire_wait(expiring);
- autofs_del_expiring(expiring);
- dput(expiring);
- }
- return 0;
-}
-
-static struct dentry *autofs_mountpoint_changed(struct path *path)
-{
- struct dentry *dentry = path->dentry;
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
-
- /*
- * If this is an indirect mount the dentry could have gone away
- * as a result of an expire and a new one created.
- */
- if (autofs_type_indirect(sbi->type) && d_unhashed(dentry)) {
- struct dentry *parent = dentry->d_parent;
- struct autofs_info *ino;
- struct dentry *new = d_lookup(parent, &dentry->d_name);
- if (!new)
- return NULL;
- ino = autofs_dentry_ino(new);
- ino->last_used = jiffies;
- dput(path->dentry);
- path->dentry = new;
- }
- return path->dentry;
-}
-
-static struct vfsmount *autofs_d_automount(struct path *path)
-{
- struct dentry *dentry = path->dentry;
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- int status;
-
- DPRINTK("dentry=%p %.*s",
- dentry, dentry->d_name.len, dentry->d_name.name);
-
- /* The daemon never triggers a mount. */
- if (autofs_oz_mode(sbi))
- return NULL;
-
- /*
- * If an expire request is pending everyone must wait.
- * If the expire fails we're still mounted so continue
- * the follow and return. A return of -EAGAIN (which only
- * happens with indirect mounts) means the expire completed
- * and the directory was removed, so just go ahead and try
- * the mount.
- */
- status = do_expire_wait(dentry);
- if (status && status != -EAGAIN)
- return NULL;
-
- /* Callback to the daemon to perform the mount or wait */
- spin_lock(&sbi->fs_lock);
- if (ino->flags & AUTOFS_INF_PENDING) {
- spin_unlock(&sbi->fs_lock);
- status = autofs_mount_wait(dentry);
- if (status)
- return ERR_PTR(status);
- goto done;
- }
-
- /*
- * If the dentry is a symlink it's equivalent to a directory
- * having d_mountpoint() true, so there's no need to call back
- * to the daemon.
- */
- if (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode)) {
- spin_unlock(&sbi->fs_lock);
- goto done;
- }
-
- if (!d_mountpoint(dentry)) {
- /*
- * It's possible that user space hasn't removed directories
- * after umounting a rootless multi-mount, although it
- * should. For v5 have_submounts() is sufficient to handle
- * this because the leaves of the directory tree under the
- * mount never trigger mounts themselves (they have an autofs
- * trigger mount mounted on them). But v4 pseudo direct mounts
- * do need the leaves to to trigger mounts. In this case we
- * have no choice but to use the list_empty() check and
- * require user space behave.
- */
- if (sbi->version > 4) {
- if (have_submounts(dentry)) {
- spin_unlock(&sbi->fs_lock);
- goto done;
- }
- } else {
- if (!simple_empty(dentry)) {
- spin_unlock(&sbi->fs_lock);
- goto done;
- }
- }
- ino->flags |= AUTOFS_INF_PENDING;
- spin_unlock(&sbi->fs_lock);
- status = autofs_mount_wait(dentry);
- spin_lock(&sbi->fs_lock);
- ino->flags &= ~AUTOFS_INF_PENDING;
- if (status) {
- spin_unlock(&sbi->fs_lock);
- return ERR_PTR(status);
- }
- }
- spin_unlock(&sbi->fs_lock);
-done:
- /* Mount succeeded, check if we ended up with a new dentry */
- dentry = autofs_mountpoint_changed(path);
- if (!dentry)
- return ERR_PTR(-ENOENT);
-
- return NULL;
-}
-
-static int autofs_d_manage(struct dentry *dentry, bool rcu_walk)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dentry->d_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- int status;
-
- DPRINTK("dentry=%p %.*s",
- dentry, dentry->d_name.len, dentry->d_name.name);
-
- /* The daemon never waits. */
- if (autofs_oz_mode(sbi)) {
- if (rcu_walk)
- return 0;
- if (!d_mountpoint(dentry))
- return -EISDIR;
- return 0;
- }
-
- /* We need to sleep, so we need pathwalk to be in ref-mode */
- if (rcu_walk)
- return -ECHILD;
-
- /* Wait for pending expires */
- do_expire_wait(dentry);
-
- /*
- * This dentry may be under construction so wait on mount
- * completion.
- */
- status = autofs_mount_wait(dentry);
- if (status)
- return status;
-
- spin_lock(&sbi->fs_lock);
- /*
- * If the dentry has been selected for expire while we slept
- * on the lock then it might go away. We'll deal with that in
- * ->d_automount() and wait on a new mount if the expire
- * succeeds or return here if it doesn't (since there's no
- * mount to follow with a rootless multi-mount).
- */
- if (!(ino->flags & AUTOFS_INF_EXPIRING)) {
- /*
- * Any needed mounting has been completed and the path
- * updated so check if this is a rootless multi-mount so
- * we can avoid needless calls ->d_automount() and avoid
- * an incorrect ELOOP error return.
- */
- if ((!d_mountpoint(dentry) && !simple_empty(dentry)) ||
- (dentry->d_inode && S_ISLNK(dentry->d_inode->i_mode)))
- status = -EISDIR;
- }
- spin_unlock(&sbi->fs_lock);
-
- return status;
-}
-
-/* Lookups in the root directory */
-static struct dentry *autofs_lookup(struct inode *dir,
- struct dentry *dentry, unsigned int flags)
-{
- struct autofs_sb_info *sbi;
- struct autofs_info *ino;
- struct dentry *active;
-
- DPRINTK("name = %.*s", dentry->d_name.len, dentry->d_name.name);
-
- /* File name too long to exist */
- if (dentry->d_name.len > NAME_MAX)
- return ERR_PTR(-ENAMETOOLONG);
-
- sbi = autofs_sbi(dir->i_sb);
-
- DPRINTK("pid = %u, pgrp = %u, catatonic = %d, oz_mode = %d",
- current->pid, task_pgrp_nr(current), sbi->catatonic,
- autofs_oz_mode(sbi));
-
- active = autofs_lookup_active(dentry);
- if (active) {
- return active;
- } else {
- /*
- * A dentry that is not within the root can never trigger a
- * mount operation, unless the directory already exists, so we
- * can return fail immediately. The daemon however does need
- * to create directories within the file system.
- */
- if (!autofs_oz_mode(sbi) && !IS_ROOT(dentry->d_parent))
- return ERR_PTR(-ENOENT);
-
- /* Mark entries in the root as mount triggers */
- if (autofs_type_indirect(sbi->type) && IS_ROOT(dentry->d_parent))
- __managed_dentry_set_managed(dentry);
-
- ino = autofs_new_ino(sbi);
- if (!ino)
- return ERR_PTR(-ENOMEM);
-
- dentry->d_fsdata = ino;
- ino->dentry = dentry;
-
- autofs_add_active(dentry);
-
- d_instantiate(dentry, NULL);
- }
- return NULL;
-}
-
-static int autofs_dir_symlink(struct inode *dir,
- struct dentry *dentry,
- const char *symname)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- struct autofs_info *p_ino;
- struct inode *inode;
- size_t size = strlen(symname);
- char *cp;
-
- DPRINTK("%s <- %.*s", symname,
- dentry->d_name.len, dentry->d_name.name);
-
- if (!autofs_oz_mode(sbi))
- return -EACCES;
-
- BUG_ON(!ino);
-
- autofs_clean_ino(ino);
-
- autofs_del_active(dentry);
-
- cp = kmalloc(size + 1, GFP_KERNEL);
- if (!cp)
- return -ENOMEM;
-
- strcpy(cp, symname);
-
- inode = autofs_get_inode(dir->i_sb, S_IFLNK | 0555);
- if (!inode) {
- kfree(cp);
- if (!dentry->d_fsdata)
- kfree(ino);
- return -ENOMEM;
- }
- inode->i_private = cp;
- inode->i_size = size;
- d_add(dentry, inode);
-
- dget(dentry);
- atomic_inc(&ino->count);
- p_ino = autofs_dentry_ino(dentry->d_parent);
- if (p_ino && dentry->d_parent != dentry)
- atomic_inc(&p_ino->count);
-
- dir->i_mtime = CURRENT_TIME;
-
- return 0;
-}
-
-/*
- * NOTE!
- *
- * Normal filesystems would do a "d_delete()" to tell the VFS dcache
- * that the file no longer exists. However, doing that means that the
- * VFS layer can turn the dentry into a negative dentry. We don't want
- * this, because the unlink is probably the result of an expire.
- * We simply d_drop it and add it to a expiring list in the super block,
- * which allows the dentry lookup to check for an incomplete expire.
- *
- * If a process is blocked on the dentry waiting for the expire to finish,
- * it will invalidate the dentry and try to mount with a new one.
- *
- * Also see autofs_dir_rmdir()..
- */
-static int autofs_dir_unlink(struct inode *dir, struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- struct autofs_info *p_ino;
-
- /* This allows root to remove symlinks */
- if (!autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (atomic_dec_and_test(&ino->count)) {
- p_ino = autofs_dentry_ino(dentry->d_parent);
- if (p_ino && dentry->d_parent != dentry)
- atomic_dec(&p_ino->count);
- }
- dput(ino->dentry);
-
- dentry->d_inode->i_size = 0;
- clear_nlink(dentry->d_inode);
-
- dir->i_mtime = CURRENT_TIME;
-
- spin_lock(&sbi->lookup_lock);
- __autofs_add_expiring(dentry);
- d_drop(dentry);
- spin_unlock(&sbi->lookup_lock);
-
- return 0;
-}
-
-/*
- * Version 4 of autofs provides a pseudo direct mount implementation
- * that relies on directories at the leaves of a directory tree under
- * an indirect mount to trigger mounts. To allow for this we need to
- * set the DMANAGED_AUTOMOUNT and DMANAGED_TRANSIT flags on the leaves
- * of the directory tree. There is no need to clear the automount flag
- * following a mount or restore it after an expire because these mounts
- * are always covered. However, it is necessary to ensure that these
- * flags are clear on non-empty directories to avoid unnecessary calls
- * during path walks.
- */
-static void autofs_set_leaf_automount_flags(struct dentry *dentry)
-{
- struct dentry *parent;
-
- /* root and dentrys in the root are already handled */
- if (IS_ROOT(dentry->d_parent))
- return;
-
- managed_dentry_set_managed(dentry);
-
- parent = dentry->d_parent;
- /* only consider parents below dentrys in the root */
- if (IS_ROOT(parent->d_parent))
- return;
- managed_dentry_clear_managed(parent);
- return;
-}
-
-static void autofs_clear_leaf_automount_flags(struct dentry *dentry)
-{
- struct list_head *d_child;
- struct dentry *parent;
-
- /* flags for dentrys in the root are handled elsewhere */
- if (IS_ROOT(dentry->d_parent))
- return;
-
- managed_dentry_clear_managed(dentry);
-
- parent = dentry->d_parent;
- /* only consider parents below dentrys in the root */
- if (IS_ROOT(parent->d_parent))
- return;
- d_child = &dentry->d_u.d_child;
- /* Set parent managed if it's becoming empty */
- if (d_child->next == &parent->d_subdirs &&
- d_child->prev == &parent->d_subdirs)
- managed_dentry_set_managed(parent);
- return;
-}
-
-static int autofs_dir_rmdir(struct inode *dir, struct dentry *dentry)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- struct autofs_info *p_ino;
-
- DPRINTK("dentry %p, removing %.*s",
- dentry, dentry->d_name.len, dentry->d_name.name);
-
- if (!autofs_oz_mode(sbi))
- return -EACCES;
-
- spin_lock(&sbi->lookup_lock);
- if (!simple_empty(dentry)) {
- spin_unlock(&sbi->lookup_lock);
- return -ENOTEMPTY;
- }
- __autofs_add_expiring(dentry);
- d_drop(dentry);
- spin_unlock(&sbi->lookup_lock);
-
- if (sbi->version < 5)
- autofs_clear_leaf_automount_flags(dentry);
-
- if (atomic_dec_and_test(&ino->count)) {
- p_ino = autofs_dentry_ino(dentry->d_parent);
- if (p_ino && dentry->d_parent != dentry)
- atomic_dec(&p_ino->count);
- }
- dput(ino->dentry);
- dentry->d_inode->i_size = 0;
- clear_nlink(dentry->d_inode);
-
- if (dir->i_nlink)
- drop_nlink(dir);
-
- return 0;
-}
-
-static int autofs_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
-{
- struct autofs_sb_info *sbi = autofs_sbi(dir->i_sb);
- struct autofs_info *ino = autofs_dentry_ino(dentry);
- struct autofs_info *p_ino;
- struct inode *inode;
-
- if (!autofs_oz_mode(sbi))
- return -EACCES;
-
- DPRINTK("dentry %p, creating %.*s",
- dentry, dentry->d_name.len, dentry->d_name.name);
-
- BUG_ON(!ino);
-
- autofs_clean_ino(ino);
-
- autofs_del_active(dentry);
-
- inode = autofs_get_inode(dir->i_sb, S_IFDIR | 0555);
- if (!inode)
- return -ENOMEM;
- d_add(dentry, inode);
-
- if (sbi->version < 5)
- autofs_set_leaf_automount_flags(dentry);
-
- dget(dentry);
- atomic_inc(&ino->count);
- p_ino = autofs_dentry_ino(dentry->d_parent);
- if (p_ino && dentry->d_parent != dentry)
- atomic_inc(&p_ino->count);
- inc_nlink(dir);
- dir->i_mtime = CURRENT_TIME;
-
- return 0;
-}
-
-/* Get/set timeout ioctl() operation */
-#ifdef CONFIG_COMPAT
-static inline int autofs_compat_get_set_timeout(struct autofs_sb_info *sbi,
- compat_ulong_t __user *p)
-{
- int rv;
- unsigned long ntimeout;
-
- if ((rv = get_user(ntimeout, p)) ||
- (rv = put_user(sbi->exp_timeout/HZ, p)))
- return rv;
-
- if (ntimeout > UINT_MAX/HZ)
- sbi->exp_timeout = 0;
- else
- sbi->exp_timeout = ntimeout * HZ;
-
- return 0;
-}
-#endif
-
-static inline int autofs_get_set_timeout(struct autofs_sb_info *sbi,
- unsigned long __user *p)
-{
- int rv;
- unsigned long ntimeout;
-
- if ((rv = get_user(ntimeout, p)) ||
- (rv = put_user(sbi->exp_timeout/HZ, p)))
- return rv;
-
- if (ntimeout > ULONG_MAX/HZ)
- sbi->exp_timeout = 0;
- else
- sbi->exp_timeout = ntimeout * HZ;
-
- return 0;
-}
-
-/* Return protocol version */
-static inline int autofs_get_protover(struct autofs_sb_info *sbi,
- int __user *p)
-{
- return put_user(sbi->version, p);
-}
-
-/* Return protocol sub version */
-static inline int autofs_get_protosubver(struct autofs_sb_info *sbi,
- int __user *p)
-{
- return put_user(sbi->sub_version, p);
-}
-
-/*
-* Tells the daemon whether it can umount the autofs mount.
-*/
-static inline int autofs_ask_umount(struct vfsmount *mnt, int __user *p)
-{
- int status = 0;
-
- if (may_umount(mnt))
- status = 1;
-
- DPRINTK("returning %d", status);
-
- status = put_user(status, p);
-
- return status;
-}
-
-/* Identify autofs_dentries - this is so we can tell if there's
- an extra dentry refcount or not. We only hold a refcount on the
- dentry if its non-negative (ie, d_inode != NULL)
-*/
-int is_autofs_dentry(struct dentry *dentry)
-{
- return dentry && dentry->d_inode &&
- dentry->d_op == &autofs_dentry_operations &&
- dentry->d_fsdata != NULL;
-}
-
-/*
- * ioctl()'s on the root directory is the chief method for the daemon to
- * generate kernel reactions
- */
-static int autofs_root_ioctl_unlocked(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
- void __user *p = (void __user *)arg;
-
- DPRINTK("cmd = 0x%08x, arg = 0x%08lx, sbi = %p, pgrp = %u",
- cmd,arg,sbi,task_pgrp_nr(current));
-
- if (_IOC_TYPE(cmd) != _IOC_TYPE(AUTOFS_IOC_FIRST) ||
- _IOC_NR(cmd) - _IOC_NR(AUTOFS_IOC_FIRST) >= AUTOFS_IOC_COUNT)
- return -ENOTTY;
-
- if (!autofs_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- switch(cmd) {
- case AUTOFS_IOC_READY: /* Wait queue: go ahead and retry */
- return autofs_wait_release(sbi,(autofs_wqt_t)arg,0);
- case AUTOFS_IOC_FAIL: /* Wait queue: fail with ENOENT */
- return autofs_wait_release(sbi,(autofs_wqt_t)arg,-ENOENT);
- case AUTOFS_IOC_CATATONIC: /* Enter catatonic mode (daemon shutdown) */
- autofs_catatonic_mode(sbi);
- return 0;
- case AUTOFS_IOC_PROTOVER: /* Get protocol version */
- return autofs_get_protover(sbi, p);
- case AUTOFS_IOC_PROTOSUBVER: /* Get protocol sub version */
- return autofs_get_protosubver(sbi, p);
- case AUTOFS_IOC_SETTIMEOUT:
- return autofs_get_set_timeout(sbi, p);
-#ifdef CONFIG_COMPAT
- case AUTOFS_IOC_SETTIMEOUT32:
- return autofs_compat_get_set_timeout(sbi, p);
-#endif
-
- case AUTOFS_IOC_ASKUMOUNT:
- return autofs_ask_umount(filp->f_path.mnt, p);
-
- /* return a single thing to expire */
- case AUTOFS_IOC_EXPIRE:
- return autofs_expire_run(inode->i_sb,filp->f_path.mnt,sbi, p);
- /* same as above, but can send multiple expires through pipe */
- case AUTOFS_IOC_EXPIRE_MULTI:
- return autofs_expire_multi(inode->i_sb,filp->f_path.mnt,sbi, p);
-
- default:
- return -ENOSYS;
- }
-}
-
-static long autofs_root_ioctl(struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct inode *inode = file_inode(filp);
- return autofs_root_ioctl_unlocked(inode, filp, cmd, arg);
-}
-
-#ifdef CONFIG_COMPAT
-static long autofs_root_compat_ioctl(struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct inode *inode = file_inode(filp);
- int ret;
-
- if (cmd == AUTOFS_IOC_READY || cmd == AUTOFS_IOC_FAIL)
- ret = autofs_root_ioctl_unlocked(inode, filp, cmd, arg);
- else
- ret = autofs_root_ioctl_unlocked(inode, filp, cmd,
- (unsigned long) compat_ptr(arg));
-
- return ret;
-}
-#endif
diff --git a/fs/autofs4/symlink.c b/fs/autofs4/symlink.c
deleted file mode 100644
index 9d728bf..0000000
--- a/fs/autofs4/symlink.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ------------------------------------------------------------------------- */
-
-#include "autofs_i.h"
-
-static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- nd_set_link(nd, dentry->d_inode->i_private);
- return NULL;
-}
-
-const struct inode_operations autofs_symlink_inode_operations = {
- .readlink = generic_readlink,
- .follow_link = autofs_follow_link
-};
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
deleted file mode 100644
index 1725e3f..0000000
--- a/fs/autofs4/waitq.c
+++ /dev/null
@@ -1,571 +0,0 @@
-/*
- * Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
- * Copyright 2001-2006 Ian Kent <raven@themaw.net>
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * ------------------------------------------------------------------------- */
-
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/signal.h>
-#include <linux/file.h>
-#include "autofs_i.h"
-
-/* We make this a static variable rather than a part of the superblock; it
- is better if we don't reassign numbers easily even across filesystems */
-static autofs_wqt_t autofs_next_wait_queue = 1;
-
-/* These are the signals we allow interrupting a pending mount */
-#define SHUTDOWN_SIGS (sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGQUIT))
-
-void autofs_catatonic_mode(struct autofs_sb_info *sbi)
-{
- struct autofs_wait_queue *wq, *nwq;
-
- mutex_lock(&sbi->wq_mutex);
- if (sbi->catatonic) {
- mutex_unlock(&sbi->wq_mutex);
- return;
- }
-
- DPRINTK("entering catatonic mode");
-
- sbi->catatonic = 1;
- wq = sbi->queues;
- sbi->queues = NULL; /* Erase all wait queues */
- while (wq) {
- nwq = wq->next;
- wq->status = -ENOENT; /* Magic is gone - report failure */
- kfree(wq->name.name);
- wq->name.name = NULL;
- wq->wait_ctr--;
- wake_up_interruptible(&wq->queue);
- wq = nwq;
- }
- fput(sbi->pipe); /* Close the pipe */
- sbi->pipe = NULL;
- sbi->pipefd = -1;
- mutex_unlock(&sbi->wq_mutex);
-}
-
-static int autofs_write(struct autofs_sb_info *sbi,
- struct file *file, const void *addr, int bytes)
-{
- unsigned long sigpipe, flags;
- mm_segment_t fs;
- const char *data = (const char *)addr;
- ssize_t wr = 0;
-
- sigpipe = sigismember(¤t->pending.signal, SIGPIPE);
-
- /* Save pointer to user space and point back to kernel space */
- fs = get_fs();
- set_fs(KERNEL_DS);
-
- mutex_lock(&sbi->pipe_mutex);
- while (bytes &&
- (wr = file->f_op->write(file,data,bytes,&file->f_pos)) > 0) {
- data += wr;
- bytes -= wr;
- }
- mutex_unlock(&sbi->pipe_mutex);
-
- set_fs(fs);
-
- /* Keep the currently executing process from receiving a
- SIGPIPE unless it was already supposed to get one */
- if (wr == -EPIPE && !sigpipe) {
- spin_lock_irqsave(¤t->sighand->siglock, flags);
- sigdelset(¤t->pending.signal, SIGPIPE);
- recalc_sigpending();
- spin_unlock_irqrestore(¤t->sighand->siglock, flags);
- }
-
- return (bytes > 0);
-}
-
-static void autofs_notify_daemon(struct autofs_sb_info *sbi,
- struct autofs_wait_queue *wq,
- int type)
-{
- union {
- struct autofs_packet_hdr hdr;
- union autofs_packet_union v4_pkt;
- union autofs_v5_packet_union v5_pkt;
- } pkt;
- struct file *pipe = NULL;
- size_t pktsz;
-
- DPRINTK("wait id = 0x%08lx, name = %.*s, type=%d",
- (unsigned long) wq->wait_queue_token,
- wq->name.len, wq->name.name, type);
-
- memset(&pkt,0,sizeof pkt); /* For security reasons */
-
- pkt.hdr.proto_version = sbi->version;
- pkt.hdr.type = type;
- mutex_lock(&sbi->wq_mutex);
-
- /* Check if we have become catatonic */
- if (sbi->catatonic) {
- mutex_unlock(&sbi->wq_mutex);
- return;
- }
- switch (type) {
- /* Kernel protocol v4 missing and expire packets */
- case autofs_ptype_missing:
- {
- struct autofs_packet_missing *mp = &pkt.v4_pkt.missing;
-
- pktsz = sizeof(*mp);
-
- mp->wait_queue_token = wq->wait_queue_token;
- mp->len = wq->name.len;
- memcpy(mp->name, wq->name.name, wq->name.len);
- mp->name[wq->name.len] = '\0';
- break;
- }
- case autofs_ptype_expire_multi:
- {
- struct autofs_packet_expire_multi *ep = &pkt.v4_pkt.expire_multi;
-
- pktsz = sizeof(*ep);
-
- ep->wait_queue_token = wq->wait_queue_token;
- ep->len = wq->name.len;
- memcpy(ep->name, wq->name.name, wq->name.len);
- ep->name[wq->name.len] = '\0';
- break;
- }
- /*
- * Kernel protocol v5 packet for handling indirect and direct
- * mount missing and expire requests
- */
- case autofs_ptype_missing_indirect:
- case autofs_ptype_expire_indirect:
- case autofs_ptype_missing_direct:
- case autofs_ptype_expire_direct:
- {
- struct autofs_v5_packet *packet = &pkt.v5_pkt.v5_packet;
- struct user_namespace *user_ns = sbi->pipe->f_cred->user_ns;
-
- pktsz = sizeof(*packet);
-
- packet->wait_queue_token = wq->wait_queue_token;
- packet->len = wq->name.len;
- memcpy(packet->name, wq->name.name, wq->name.len);
- packet->name[wq->name.len] = '\0';
- packet->dev = wq->dev;
- packet->ino = wq->ino;
- packet->uid = from_kuid_munged(user_ns, wq->uid);
- packet->gid = from_kgid_munged(user_ns, wq->gid);
- packet->pid = wq->pid;
- packet->tgid = wq->tgid;
- break;
- }
- default:
- printk("autofs_notify_daemon: bad type %d!\n", type);
- mutex_unlock(&sbi->wq_mutex);
- return;
- }
-
- pipe = get_file(sbi->pipe);
-
- mutex_unlock(&sbi->wq_mutex);
-
- if (autofs_write(sbi, pipe, &pkt, pktsz))
- autofs_catatonic_mode(sbi);
- fput(pipe);
-}
-
-static int autofs_getpath(struct autofs_sb_info *sbi,
- struct dentry *dentry, char **name)
-{
- struct dentry *root = sbi->sb->s_root;
- struct dentry *tmp;
- char *buf;
- char *p;
- int len;
- unsigned seq;
-
-rename_retry:
- buf = *name;
- len = 0;
-
- seq = read_seqbegin(&rename_lock);
- rcu_read_lock();
- spin_lock(&sbi->fs_lock);
- for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent)
- len += tmp->d_name.len + 1;
-
- if (!len || --len > NAME_MAX) {
- spin_unlock(&sbi->fs_lock);
- rcu_read_unlock();
- if (read_seqretry(&rename_lock, seq))
- goto rename_retry;
- return 0;
- }
-
- *(buf + len) = '\0';
- p = buf + len - dentry->d_name.len;
- strncpy(p, dentry->d_name.name, dentry->d_name.len);
-
- for (tmp = dentry->d_parent; tmp != root ; tmp = tmp->d_parent) {
- *(--p) = '/';
- p -= tmp->d_name.len;
- strncpy(p, tmp->d_name.name, tmp->d_name.len);
- }
- spin_unlock(&sbi->fs_lock);
- rcu_read_unlock();
- if (read_seqretry(&rename_lock, seq))
- goto rename_retry;
-
- return len;
-}
-
-static struct autofs_wait_queue *
-autofs_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
-{
- struct autofs_wait_queue *wq;
-
- for (wq = sbi->queues; wq; wq = wq->next) {
- if (wq->name.hash == qstr->hash &&
- wq->name.len == qstr->len &&
- wq->name.name &&
- !memcmp(wq->name.name, qstr->name, qstr->len))
- break;
- }
- return wq;
-}
-
-/*
- * Check if we have a valid request.
- * Returns
- * 1 if the request should continue.
- * In this case we can return an autofs_wait_queue entry if one is
- * found or NULL to idicate a new wait needs to be created.
- * 0 or a negative errno if the request shouldn't continue.
- */
-static int validate_request(struct autofs_wait_queue **wait,
- struct autofs_sb_info *sbi,
- struct qstr *qstr,
- struct dentry*dentry, enum autofs_notify notify)
-{
- struct autofs_wait_queue *wq;
- struct autofs_info *ino;
-
- if (sbi->catatonic)
- return -ENOENT;
-
- /* Wait in progress, continue; */
- wq = autofs_find_wait(sbi, qstr);
- if (wq) {
- *wait = wq;
- return 1;
- }
-
- *wait = NULL;
-
- /* If we don't yet have any info this is a new request */
- ino = autofs_dentry_ino(dentry);
- if (!ino)
- return 1;
-
- /*
- * If we've been asked to wait on an existing expire (NFY_NONE)
- * but there is no wait in the queue ...
- */
- if (notify == NFY_NONE) {
- /*
- * Either we've betean the pending expire to post it's
- * wait or it finished while we waited on the mutex.
- * So we need to wait till either, the wait appears
- * or the expire finishes.
- */
-
- while (ino->flags & AUTOFS_INF_EXPIRING) {
- mutex_unlock(&sbi->wq_mutex);
- schedule_timeout_interruptible(HZ/10);
- if (mutex_lock_interruptible(&sbi->wq_mutex))
- return -EINTR;
-
- if (sbi->catatonic)
- return -ENOENT;
-
- wq = autofs_find_wait(sbi, qstr);
- if (wq) {
- *wait = wq;
- return 1;
- }
- }
-
- /*
- * Not ideal but the status has already gone. Of the two
- * cases where we wait on NFY_NONE neither depend on the
- * return status of the wait.
- */
- return 0;
- }
-
- /*
- * If we've been asked to trigger a mount and the request
- * completed while we waited on the mutex ...
- */
- if (notify == NFY_MOUNT) {
- struct dentry *new = NULL;
- int valid = 1;
-
- /*
- * If the dentry was successfully mounted while we slept
- * on the wait queue mutex we can return success. If it
- * isn't mounted (doesn't have submounts for the case of
- * a multi-mount with no mount at it's base) we can
- * continue on and create a new request.
- */
- if (!IS_ROOT(dentry)) {
- if (dentry->d_inode && d_unhashed(dentry)) {
- struct dentry *parent = dentry->d_parent;
- new = d_lookup(parent, &dentry->d_name);
- if (new)
- dentry = new;
- }
- }
- if (have_submounts(dentry))
- valid = 0;
-
- if (new)
- dput(new);
- return valid;
- }
-
- return 1;
-}
-
-int autofs_wait(struct autofs_sb_info *sbi,
- struct dentry *dentry, enum autofs_notify notify)
-{
- struct autofs_wait_queue *wq;
- struct qstr qstr;
- char *name;
- int status, ret, type;
- pid_t pid;
- pid_t tgid;
-
- /* In catatonic mode, we don't wait for nobody */
- if (sbi->catatonic)
- return -ENOENT;
-
- /*
- * Try translating pids to the namespace of the daemon.
- *
- * Zero means failure: we are in an unrelated pid namespace.
- */
- pid = task_pid_nr_ns(current, ns_of_pid(sbi->oz_pgrp));
- tgid = task_tgid_nr_ns(current, ns_of_pid(sbi->oz_pgrp));
- if (pid == 0 || tgid == 0)
- return -ENOENT;
-
- if (!dentry->d_inode) {
- /*
- * A wait for a negative dentry is invalid for certain
- * cases. A direct or offset mount "always" has its mount
- * point directory created and so the request dentry must
- * be positive or the map key doesn't exist. The situation
- * is very similar for indirect mounts except only dentrys
- * in the root of the autofs file system may be negative.
- */
- if (autofs_type_trigger(sbi->type))
- return -ENOENT;
- else if (!IS_ROOT(dentry->d_parent))
- return -ENOENT;
- }
-
- name = kmalloc(NAME_MAX + 1, GFP_KERNEL);
- if (!name)
- return -ENOMEM;
-
- /* If this is a direct mount request create a dummy name */
- if (IS_ROOT(dentry) && autofs_type_trigger(sbi->type))
- qstr.len = sprintf(name, "%p", dentry);
- else {
- qstr.len = autofs_getpath(sbi, dentry, &name);
- if (!qstr.len) {
- kfree(name);
- return -ENOENT;
- }
- }
- qstr.name = name;
- qstr.hash = full_name_hash(name, qstr.len);
-
- if (mutex_lock_interruptible(&sbi->wq_mutex)) {
- kfree(qstr.name);
- return -EINTR;
- }
-
- ret = validate_request(&wq, sbi, &qstr, dentry, notify);
- if (ret <= 0) {
- if (ret != -EINTR)
- mutex_unlock(&sbi->wq_mutex);
- kfree(qstr.name);
- return ret;
- }
-
- if (!wq) {
- /* Create a new wait queue */
- wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
- if (!wq) {
- kfree(qstr.name);
- mutex_unlock(&sbi->wq_mutex);
- return -ENOMEM;
- }
-
- wq->wait_queue_token = autofs_next_wait_queue;
- if (++autofs_next_wait_queue == 0)
- autofs_next_wait_queue = 1;
- wq->next = sbi->queues;
- sbi->queues = wq;
- init_waitqueue_head(&wq->queue);
- memcpy(&wq->name, &qstr, sizeof(struct qstr));
- wq->dev = autofs_get_dev(sbi);
- wq->ino = autofs_get_ino(sbi);
- wq->uid = current_uid();
- wq->gid = current_gid();
- wq->pid = pid;
- wq->tgid = tgid;
- wq->status = -EINTR; /* Status return if interrupted */
- wq->wait_ctr = 2;
- mutex_unlock(&sbi->wq_mutex);
-
- if (sbi->version < 5) {
- if (notify == NFY_MOUNT)
- type = autofs_ptype_missing;
- else
- type = autofs_ptype_expire_multi;
- } else {
- if (notify == NFY_MOUNT)
- type = autofs_type_trigger(sbi->type) ?
- autofs_ptype_missing_direct :
- autofs_ptype_missing_indirect;
- else
- type = autofs_type_trigger(sbi->type) ?
- autofs_ptype_expire_direct :
- autofs_ptype_expire_indirect;
- }
-
- DPRINTK("new wait id = 0x%08lx, name = %.*s, nfy=%d\n",
- (unsigned long) wq->wait_queue_token, wq->name.len,
- wq->name.name, notify);
-
- /* autofs_notify_daemon() may block */
- autofs_notify_daemon(sbi, wq, type);
- } else {
- wq->wait_ctr++;
- mutex_unlock(&sbi->wq_mutex);
- kfree(qstr.name);
- DPRINTK("existing wait id = 0x%08lx, name = %.*s, nfy=%d",
- (unsigned long) wq->wait_queue_token, wq->name.len,
- wq->name.name, notify);
- }
-
- /*
- * wq->name.name is NULL iff the lock is already released
- * or the mount has been made catatonic.
- */
- if (wq->name.name) {
- /* Block all but "shutdown" signals while waiting */
- sigset_t oldset;
- unsigned long irqflags;
-
- spin_lock_irqsave(¤t->sighand->siglock, irqflags);
- oldset = current->blocked;
- siginitsetinv(¤t->blocked, SHUTDOWN_SIGS & ~oldset.sig[0]);
- recalc_sigpending();
- spin_unlock_irqrestore(¤t->sighand->siglock, irqflags);
-
- wait_event_interruptible(wq->queue, wq->name.name == NULL);
-
- spin_lock_irqsave(¤t->sighand->siglock, irqflags);
- current->blocked = oldset;
- recalc_sigpending();
- spin_unlock_irqrestore(¤t->sighand->siglock, irqflags);
- } else {
- DPRINTK("skipped sleeping");
- }
-
- status = wq->status;
-
- /*
- * For direct and offset mounts we need to track the requester's
- * uid and gid in the dentry info struct. This is so it can be
- * supplied, on request, by the misc device ioctl interface.
- * This is needed during daemon resatart when reconnecting
- * to existing, active, autofs mounts. The uid and gid (and
- * related string values) may be used for macro substitution
- * in autofs mount maps.
- */
- if (!status) {
- struct autofs_info *ino;
- struct dentry *de = NULL;
-
- /* direct mount or browsable map */
- ino = autofs_dentry_ino(dentry);
- if (!ino) {
- /* If not lookup actual dentry used */
- de = d_lookup(dentry->d_parent, &dentry->d_name);
- if (de)
- ino = autofs_dentry_ino(de);
- }
-
- /* Set mount requester */
- if (ino) {
- spin_lock(&sbi->fs_lock);
- ino->uid = wq->uid;
- ino->gid = wq->gid;
- spin_unlock(&sbi->fs_lock);
- }
-
- if (de)
- dput(de);
- }
-
- /* Are we the last process to need status? */
- mutex_lock(&sbi->wq_mutex);
- if (!--wq->wait_ctr)
- kfree(wq);
- mutex_unlock(&sbi->wq_mutex);
-
- return status;
-}
-
-
-int autofs_wait_release(struct autofs_sb_info *sbi,
- autofs_wqt_t wait_queue_token, int status)
-{
- struct autofs_wait_queue *wq, **wql;
-
- mutex_lock(&sbi->wq_mutex);
- for (wql = &sbi->queues; (wq = *wql) != NULL; wql = &wq->next) {
- if (wq->wait_queue_token == wait_queue_token)
- break;
- }
-
- if (!wq) {
- mutex_unlock(&sbi->wq_mutex);
- return -EINVAL;
- }
-
- *wql = wq->next; /* Unlink from chain */
- kfree(wq->name.name);
- wq->name.name = NULL; /* Do not wait on this queue */
- wq->status = status;
- wake_up_interruptible(&wq->queue);
- if (!--wq->wait_ctr)
- kfree(wq);
- mutex_unlock(&sbi->wq_mutex);
-
- return 0;
-}
-
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
` (5 preceding siblings ...)
2013-07-01 3:14 ` [RFC PATCH 6/7] autofs - rename module autofs4 to autofs Ian Kent
@ 2013-07-01 3:14 ` Ian Kent
2013-07-01 4:39 ` Stephen Rothwell
6 siblings, 1 reply; 12+ messages in thread
From: Ian Kent @ 2013-07-01 3:14 UTC (permalink / raw)
To: linux-next; +Cc: linux-fsdevel, autofs mailing list, Kernel Mailing List
Signed-off-by: Ian Kent <raven@themaw.net>
---
arch/arm/configs/at91rm9200_defconfig | 2 +-
arch/arm/configs/bcm_defconfig | 2 +-
arch/arm/configs/cns3420vb_defconfig | 2 +-
arch/arm/configs/colibri_pxa270_defconfig | 2 +-
arch/arm/configs/da8xx_omapl_defconfig | 2 +-
arch/arm/configs/davinci_all_defconfig | 2 +-
arch/arm/configs/ebsa110_defconfig | 2 +-
arch/arm/configs/ezx_defconfig | 2 +-
| 2 +-
arch/arm/configs/imote2_defconfig | 2 +-
arch/arm/configs/imx_v6_v7_defconfig | 2 +-
arch/arm/configs/lpc32xx_defconfig | 2 +-
arch/arm/configs/mini2440_defconfig | 2 +-
arch/arm/configs/omap1_defconfig | 2 +-
arch/arm/configs/rpc_defconfig | 2 +-
arch/arm/configs/s3c2410_defconfig | 2 +-
arch/arm/configs/spear13xx_defconfig | 2 +-
arch/arm/configs/spear3xx_defconfig | 2 +-
arch/arm/configs/spear6xx_defconfig | 2 +-
arch/arm/configs/trizeps4_defconfig | 2 +-
arch/ia64/configs/bigsur_defconfig | 2 +-
arch/ia64/configs/generic_defconfig | 2 +-
arch/ia64/configs/gensparse_defconfig | 2 +-
arch/ia64/configs/tiger_defconfig | 2 +-
arch/ia64/configs/xen_domu_defconfig | 2 +-
arch/m68k/configs/amiga_defconfig | 2 +-
arch/m68k/configs/apollo_defconfig | 2 +-
arch/m68k/configs/atari_defconfig | 2 +-
arch/m68k/configs/bvme6000_defconfig | 2 +-
arch/m68k/configs/hp300_defconfig | 2 +-
arch/m68k/configs/mac_defconfig | 2 +-
arch/m68k/configs/multi_defconfig | 2 +-
arch/m68k/configs/mvme147_defconfig | 2 +-
arch/m68k/configs/mvme16x_defconfig | 2 +-
arch/m68k/configs/q40_defconfig | 2 +-
arch/m68k/configs/sun3_defconfig | 2 +-
arch/m68k/configs/sun3x_defconfig | 2 +-
arch/mips/configs/bcm47xx_defconfig | 2 +-
arch/mips/configs/bigsur_defconfig | 2 +-
arch/mips/configs/capcella_defconfig | 2 +-
arch/mips/configs/e55_defconfig | 2 +-
arch/mips/configs/fuloong2e_defconfig | 2 +-
arch/mips/configs/ip22_defconfig | 2 +-
arch/mips/configs/ip32_defconfig | 2 +-
arch/mips/configs/jazz_defconfig | 2 +-
arch/mips/configs/lemote2f_defconfig | 2 +-
arch/mips/configs/markeins_defconfig | 2 +-
arch/mips/configs/mpc30x_defconfig | 2 +-
arch/mips/configs/mtx1_defconfig | 2 +-
arch/mips/configs/nlm_xlp_defconfig | 2 +-
arch/mips/configs/nlm_xlr_defconfig | 2 +-
arch/mips/configs/rm200_defconfig | 2 +-
arch/mips/configs/tb0219_defconfig | 2 +-
arch/mips/configs/tb0226_defconfig | 2 +-
arch/mips/configs/tb0287_defconfig | 2 +-
arch/mips/configs/workpad_defconfig | 2 +-
arch/parisc/configs/712_defconfig | 2 +-
arch/parisc/configs/a500_defconfig | 2 +-
arch/parisc/configs/b180_defconfig | 2 +-
arch/parisc/configs/c3000_defconfig | 2 +-
arch/powerpc/configs/40x/virtex_defconfig | 2 +-
arch/powerpc/configs/44x/sam440ep_defconfig | 2 +-
arch/powerpc/configs/44x/virtex5_defconfig | 2 +-
arch/powerpc/configs/85xx/stx_gp3_defconfig | 2 +-
arch/powerpc/configs/86xx/sbc8641d_defconfig | 2 +-
arch/powerpc/configs/c2k_defconfig | 2 +-
arch/powerpc/configs/cell_defconfig | 2 +-
arch/powerpc/configs/ep8248e_defconfig | 2 +-
arch/powerpc/configs/mgcoge_defconfig | 2 +-
arch/powerpc/configs/mpc8272_ads_defconfig | 2 +-
arch/powerpc/configs/pasemi_defconfig | 2 +-
arch/powerpc/configs/pmac32_defconfig | 2 +-
arch/powerpc/configs/ppc64_defconfig | 2 +-
arch/powerpc/configs/ppc64e_defconfig | 2 +-
arch/powerpc/configs/ppc6xx_defconfig | 2 +-
arch/powerpc/configs/pq2fads_defconfig | 2 +-
arch/powerpc/configs/ps3_defconfig | 2 +-
arch/powerpc/configs/pseries_defconfig | 2 +-
arch/score/configs/spct6600_defconfig | 2 +-
arch/sh/configs/espt_defconfig | 2 +-
arch/sh/configs/sdk7780_defconfig | 2 +-
arch/sh/configs/sdk7786_defconfig | 2 +-
arch/sh/configs/sh03_defconfig | 2 +-
arch/sh/configs/sh7763rdp_defconfig | 2 +-
arch/sparc/configs/sparc32_defconfig | 2 +-
arch/tile/configs/tilegx_defconfig | 2 +-
arch/tile/configs/tilepro_defconfig | 2 +-
arch/um/defconfig | 2 +-
arch/x86/configs/i386_defconfig | 2 +-
arch/x86/configs/x86_64_defconfig | 2 +-
arch/xtensa/configs/common_defconfig | 1 -
arch/xtensa/configs/iss_defconfig | 1 -
arch/xtensa/configs/s6105_defconfig | 1 -
93 files changed, 90 insertions(+), 93 deletions(-)
diff --git a/arch/arm/configs/at91rm9200_defconfig b/arch/arm/configs/at91rm9200_defconfig
index 75502c4..db89c6e 100644
--- a/arch/arm/configs/at91rm9200_defconfig
+++ b/arch/arm/configs/at91rm9200_defconfig
@@ -139,7 +139,7 @@ CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_AT91RM9200=y
CONFIG_EXT4_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
CONFIG_UBIFS_FS=y
diff --git a/arch/arm/configs/bcm_defconfig b/arch/arm/configs/bcm_defconfig
index e3bf2d6..b9ace84 100644
--- a/arch/arm/configs/bcm_defconfig
+++ b/arch/arm/configs/bcm_defconfig
@@ -87,7 +87,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
diff --git a/arch/arm/configs/cns3420vb_defconfig b/arch/arm/configs/cns3420vb_defconfig
index b1ff5cd..b3c203e 100644
--- a/arch/arm/configs/cns3420vb_defconfig
+++ b/arch/arm/configs/cns3420vb_defconfig
@@ -64,7 +64,7 @@ CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_FSCACHE=y
CONFIG_TMPFS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
diff --git a/arch/arm/configs/colibri_pxa270_defconfig b/arch/arm/configs/colibri_pxa270_defconfig
index 2ef2c5e..5303c56 100644
--- a/arch/arm/configs/colibri_pxa270_defconfig
+++ b/arch/arm/configs/colibri_pxa270_defconfig
@@ -135,7 +135,7 @@ CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
CONFIG_RTC_DRV_PCF8583=m
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-15"
diff --git a/arch/arm/configs/da8xx_omapl_defconfig b/arch/arm/configs/da8xx_omapl_defconfig
index 7c86813..d6cf64b 100644
--- a/arch/arm/configs/da8xx_omapl_defconfig
+++ b/arch/arm/configs/da8xx_omapl_defconfig
@@ -106,7 +106,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_XFS_FS=m
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/arm/configs/davinci_all_defconfig b/arch/arm/configs/davinci_all_defconfig
index c86fd75..a683475 100644
--- a/arch/arm/configs/davinci_all_defconfig
+++ b/arch/arm/configs/davinci_all_defconfig
@@ -166,7 +166,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_XFS_FS=m
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/arm/configs/ebsa110_defconfig b/arch/arm/configs/ebsa110_defconfig
index 14559db..ed8327f 100644
--- a/arch/arm/configs/ebsa110_defconfig
+++ b/arch/arm/configs/ebsa110_defconfig
@@ -66,7 +66,7 @@ CONFIG_SERIAL_8250_CS=m
CONFIG_PRINTER=m
CONFIG_WATCHDOG=y
CONFIG_SOFT_WATCHDOG=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_MINIX_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
diff --git a/arch/arm/configs/ezx_defconfig b/arch/arm/configs/ezx_defconfig
index d95763d..50f3b4d 100644
--- a/arch/arm/configs/ezx_defconfig
+++ b/arch/arm/configs/ezx_defconfig
@@ -315,7 +315,7 @@ CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_INOTIFY=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=m
--git a/arch/arm/configs/footbridge_defconfig b/arch/arm/configs/footbridge_defconfig
index 038518a..5f2a428 100644
--- a/arch/arm/configs/footbridge_defconfig
+++ b/arch/arm/configs/footbridge_defconfig
@@ -105,7 +105,7 @@ CONFIG_USB_DEVICEFS=y
CONFIG_USB_MON=m
CONFIG_USB_PRINTER=m
CONFIG_EXT2_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_MSDOS_FS=m
diff --git a/arch/arm/configs/imote2_defconfig b/arch/arm/configs/imote2_defconfig
index fd996bb..c613896 100644
--- a/arch/arm/configs/imote2_defconfig
+++ b/arch/arm/configs/imote2_defconfig
@@ -286,7 +286,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=m
CONFIG_INOTIFY=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_MSDOS_FS=m
diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index 2353bde..68c2ffe 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -238,7 +238,7 @@ CONFIG_EXT4_FS_SECURITY=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=y
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/arm/configs/lpc32xx_defconfig b/arch/arm/configs/lpc32xx_defconfig
index 398a367..8f9d3eb 100644
--- a/arch/arm/configs/lpc32xx_defconfig
+++ b/arch/arm/configs/lpc32xx_defconfig
@@ -183,7 +183,7 @@ CONFIG_MAX517=y
CONFIG_PWM=y
CONFIG_PWM_LPC32XX=y
CONFIG_EXT2_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig
index a07948a..ce6c835 100644
--- a/arch/arm/configs/mini2440_defconfig
+++ b/arch/arm/configs/mini2440_defconfig
@@ -268,7 +268,7 @@ CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_INOTIFY=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig
index d74edba..8fae376 100644
--- a/arch/arm/configs/omap1_defconfig
+++ b/arch/arm/configs/omap1_defconfig
@@ -231,7 +231,7 @@ CONFIG_RTC_DRV_OMAP=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_DNOTIFY is not set
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_MSDOS_FS=y
diff --git a/arch/arm/configs/rpc_defconfig b/arch/arm/configs/rpc_defconfig
index 00515ef..f2ebb47 100644
--- a/arch/arm/configs/rpc_defconfig
+++ b/arch/arm/configs/rpc_defconfig
@@ -88,7 +88,7 @@ CONFIG_RTC_DRV_PCF8583=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_MSDOS_FS=m
diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig
index 193448f..b3f829f 100644
--- a/arch/arm/configs/s3c2410_defconfig
+++ b/arch/arm/configs/s3c2410_defconfig
@@ -396,7 +396,7 @@ CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT4_FS=m
CONFIG_EXT4_FS_POSIX_ACL=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
diff --git a/arch/arm/configs/spear13xx_defconfig b/arch/arm/configs/spear13xx_defconfig
index 1fdb826..5a803b3 100644
--- a/arch/arm/configs/spear13xx_defconfig
+++ b/arch/arm/configs/spear13xx_defconfig
@@ -79,7 +79,7 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
diff --git a/arch/arm/configs/spear3xx_defconfig b/arch/arm/configs/spear3xx_defconfig
index 7ff23a0..70e4d8d 100644
--- a/arch/arm/configs/spear3xx_defconfig
+++ b/arch/arm/configs/spear3xx_defconfig
@@ -73,7 +73,7 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
diff --git a/arch/arm/configs/spear6xx_defconfig b/arch/arm/configs/spear6xx_defconfig
index 7822980..c1fadf0 100644
--- a/arch/arm/configs/spear6xx_defconfig
+++ b/arch/arm/configs/spear6xx_defconfig
@@ -62,7 +62,7 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_SECURITY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
diff --git a/arch/arm/configs/trizeps4_defconfig b/arch/arm/configs/trizeps4_defconfig
index 3162173..677f482 100644
--- a/arch/arm/configs/trizeps4_defconfig
+++ b/arch/arm/configs/trizeps4_defconfig
@@ -187,7 +187,7 @@ CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-15"
diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig
index cf5993f..dab25bc 100644
--- a/arch/ia64/configs/bigsur_defconfig
+++ b/arch/ia64/configs/bigsur_defconfig
@@ -87,7 +87,7 @@ CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig
index 7913695..792a32e 100644
--- a/arch/ia64/configs/generic_defconfig
+++ b/arch/ia64/configs/generic_defconfig
@@ -167,7 +167,7 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig
index f8e9133..15447e3 100644
--- a/arch/ia64/configs/gensparse_defconfig
+++ b/arch/ia64/configs/gensparse_defconfig
@@ -148,7 +148,7 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
index a5a9e02..af2e3d2 100644
--- a/arch/ia64/configs/tiger_defconfig
+++ b/arch/ia64/configs/tiger_defconfig
@@ -121,7 +121,7 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/ia64/configs/xen_domu_defconfig b/arch/ia64/configs/xen_domu_defconfig
index 37b9b42..cdcaac1 100644
--- a/arch/ia64/configs/xen_domu_defconfig
+++ b/arch/ia64/configs/xen_domu_defconfig
@@ -131,7 +131,7 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig
index 19325e1..449fe05 100644
--- a/arch/m68k/configs/amiga_defconfig
+++ b/arch/m68k/configs/amiga_defconfig
@@ -358,7 +358,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig
index 14dc6cc..de90302 100644
--- a/arch/m68k/configs/apollo_defconfig
+++ b/arch/m68k/configs/apollo_defconfig
@@ -315,7 +315,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig
index 6d5370c..8f4c568 100644
--- a/arch/m68k/configs/atari_defconfig
+++ b/arch/m68k/configs/atari_defconfig
@@ -333,7 +333,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig
index c015ddb..09b9802 100644
--- a/arch/m68k/configs/bvme6000_defconfig
+++ b/arch/m68k/configs/bvme6000_defconfig
@@ -307,7 +307,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig
index ec7382d..46a500a 100644
--- a/arch/m68k/configs/hp300_defconfig
+++ b/arch/m68k/configs/hp300_defconfig
@@ -317,7 +317,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 7d46fbe..b1d3abe 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -340,7 +340,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index b17a883..7c27aa2 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -418,7 +418,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
index 5586c65..281cdd8 100644
--- a/arch/m68k/configs/mvme147_defconfig
+++ b/arch/m68k/configs/mvme147_defconfig
@@ -307,7 +307,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
index e5e8262..8af7a4d 100644
--- a/arch/m68k/configs/mvme16x_defconfig
+++ b/arch/m68k/configs/mvme16x_defconfig
@@ -307,7 +307,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig
index be1496e..e9ada99 100644
--- a/arch/m68k/configs/q40_defconfig
+++ b/arch/m68k/configs/q40_defconfig
@@ -331,7 +331,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig
index 54674d6..cc1eeee 100644
--- a/arch/m68k/configs/sun3_defconfig
+++ b/arch/m68k/configs/sun3_defconfig
@@ -309,7 +309,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig
index 832d953..7436323 100644
--- a/arch/m68k/configs/sun3x_defconfig
+++ b/arch/m68k/configs/sun3x_defconfig
@@ -309,7 +309,7 @@ CONFIG_OCFS2_FS=m
CONFIG_FANOTIFY=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
CONFIG_ISO9660_FS=y
diff --git a/arch/mips/configs/bcm47xx_defconfig b/arch/mips/configs/bcm47xx_defconfig
index 4ca8e5c..a2ae007 100644
--- a/arch/mips/configs/bcm47xx_defconfig
+++ b/arch/mips/configs/bcm47xx_defconfig
@@ -506,7 +506,7 @@ CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index 1cdff6b..d33c492 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -184,7 +184,7 @@ CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=m
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index 5135dc0..aa01aa0 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -65,7 +65,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index 0126e66..eda3e7d 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -34,7 +34,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig
index e5b73de..765f029 100644
--- a/arch/mips/configs/fuloong2e_defconfig
+++ b/arch/mips/configs/fuloong2e_defconfig
@@ -221,7 +221,7 @@ CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_REISERFS_FS=m
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=y
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index 936ec5a..b06185e7 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -289,7 +289,7 @@ CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=m
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig
index 7bbd521..9657282 100644
--- a/arch/mips/configs/ip32_defconfig
+++ b/arch/mips/configs/ip32_defconfig
@@ -118,7 +118,7 @@ CONFIG_QUOTA=y
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig
index 0315ee3..20fb38ec 100644
--- a/arch/mips/configs/jazz_defconfig
+++ b/arch/mips/configs/jazz_defconfig
@@ -278,7 +278,7 @@ CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig
index 343bebc..474d515 100644
--- a/arch/mips/configs/lemote2f_defconfig
+++ b/arch/mips/configs/lemote2f_defconfig
@@ -350,7 +350,7 @@ CONFIG_BTRFS_FS=m
CONFIG_QUOTA=y
CONFIG_QFMT_V2=m
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FSCACHE=m
CONFIG_CACHEFILES=m
CONFIG_ISO9660_FS=m
diff --git a/arch/mips/configs/markeins_defconfig b/arch/mips/configs/markeins_defconfig
index 636f82b..54104cf 100644
--- a/arch/mips/configs/markeins_defconfig
+++ b/arch/mips/configs/markeins_defconfig
@@ -177,7 +177,7 @@ CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=m
CONFIG_XFS_FS=m
# CONFIG_DNOTIFY is not set
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=m
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index c16de98..64d05cd 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -53,7 +53,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
CONFIG_EXT2_FS=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_PROC_KCORE=y
CONFIG_CONFIGFS_FS=m
CONFIG_NFS_FS=y
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index 9fa8f16..fa9a790 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -698,7 +698,7 @@ CONFIG_EXT3_FS=m
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_QUOTA=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/nlm_xlp_defconfig b/arch/mips/configs/nlm_xlp_defconfig
index 5468b1c..a2fb24c 100644
--- a/arch/mips/configs/nlm_xlp_defconfig
+++ b/arch/mips/configs/nlm_xlp_defconfig
@@ -457,7 +457,7 @@ CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
CONFIG_QUOTA_NETLINK_INTERFACE=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
CONFIG_FSCACHE=m
diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig
index 44b4734..20f1243 100644
--- a/arch/mips/configs/nlm_xlr_defconfig
+++ b/arch/mips/configs/nlm_xlr_defconfig
@@ -397,7 +397,7 @@ CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V1=m
CONFIG_QFMT_V2=m
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
CONFIG_FSCACHE=m
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig
index 59d9d2f..0bd541e 100644
--- a/arch/mips/configs/rm200_defconfig
+++ b/arch/mips/configs/rm200_defconfig
@@ -369,7 +369,7 @@ CONFIG_REISERFS_FS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
diff --git a/arch/mips/configs/tb0219_defconfig b/arch/mips/configs/tb0219_defconfig
index 30036b4..8bb94e0 100644
--- a/arch/mips/configs/tb0219_defconfig
+++ b/arch/mips/configs/tb0219_defconfig
@@ -81,7 +81,7 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig
index 81bfa1d..9743b31 100644
--- a/arch/mips/configs/tb0226_defconfig
+++ b/arch/mips/configs/tb0226_defconfig
@@ -78,7 +78,7 @@ CONFIG_USB_STORAGE=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_VR41XX=y
CONFIG_EXT2_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig
index c415c4f..e15ea36 100644
--- a/arch/mips/configs/tb0287_defconfig
+++ b/arch/mips/configs/tb0287_defconfig
@@ -96,7 +96,7 @@ CONFIG_EXT3_FS=y
CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig
index ee4b2be..33a6683 100644
--- a/arch/mips/configs/workpad_defconfig
+++ b/arch/mips/configs/workpad_defconfig
@@ -61,7 +61,7 @@ CONFIG_RTC_DRV_VR41XX=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT3_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig
index 0f90569..a3879f8 100644
--- a/arch/parisc/configs/712_defconfig
+++ b/arch/parisc/configs/712_defconfig
@@ -118,7 +118,7 @@ CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_JFS_FS=m
CONFIG_XFS_FS=m
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/parisc/configs/a500_defconfig b/arch/parisc/configs/a500_defconfig
index b647b18..cf85bc1 100644
--- a/arch/parisc/configs/a500_defconfig
+++ b/arch/parisc/configs/a500_defconfig
@@ -160,7 +160,7 @@ CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_JFS_FS=m
CONFIG_XFS_FS=m
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/parisc/configs/b180_defconfig b/arch/parisc/configs/b180_defconfig
index e289f5b..3e92363 100644
--- a/arch/parisc/configs/b180_defconfig
+++ b/arch/parisc/configs/b180_defconfig
@@ -82,7 +82,7 @@ CONFIG_SND_HARMONY=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_PROC_KCORE=y
diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index 311ca36..047ef19 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -140,7 +140,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_XFS_FS=m
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_MSDOS_FS=m
diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig
index 0a81e1f..2aa127b 100644
--- a/arch/powerpc/configs/40x/virtex_defconfig
+++ b/arch/powerpc/configs/40x/virtex_defconfig
@@ -69,7 +69,7 @@ CONFIG_LOGO=y
CONFIG_EXT2_FS=y
CONFIG_INOTIFY=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/powerpc/configs/44x/sam440ep_defconfig b/arch/powerpc/configs/44x/sam440ep_defconfig
index ca088cd..ed98042 100644
--- a/arch/powerpc/configs/44x/sam440ep_defconfig
+++ b/arch/powerpc/configs/44x/sam440ep_defconfig
@@ -101,7 +101,7 @@ CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_REISERFS_FS=y
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
diff --git a/arch/powerpc/configs/44x/virtex5_defconfig b/arch/powerpc/configs/44x/virtex5_defconfig
index 1eb3caf..11a6c1e 100644
--- a/arch/powerpc/configs/44x/virtex5_defconfig
+++ b/arch/powerpc/configs/44x/virtex5_defconfig
@@ -68,7 +68,7 @@ CONFIG_LOGO=y
CONFIG_EXT2_FS=y
CONFIG_INOTIFY=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
diff --git a/arch/powerpc/configs/85xx/stx_gp3_defconfig b/arch/powerpc/configs/85xx/stx_gp3_defconfig
index 5d4db15..01f7a77 100644
--- a/arch/powerpc/configs/85xx/stx_gp3_defconfig
+++ b/arch/powerpc/configs/85xx/stx_gp3_defconfig
@@ -65,7 +65,7 @@ CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_INOTIFY=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=m
diff --git a/arch/powerpc/configs/86xx/sbc8641d_defconfig b/arch/powerpc/configs/86xx/sbc8641d_defconfig
index 1a62baf..bf44180 100644
--- a/arch/powerpc/configs/86xx/sbc8641d_defconfig
+++ b/arch/powerpc/configs/86xx/sbc8641d_defconfig
@@ -195,7 +195,7 @@ CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_OCFS2_FS=m
CONFIG_INOTIFY=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_MINIX_FS=m
diff --git a/arch/powerpc/configs/c2k_defconfig b/arch/powerpc/configs/c2k_defconfig
index 671a8f9..edebe72 100644
--- a/arch/powerpc/configs/c2k_defconfig
+++ b/arch/powerpc/configs/c2k_defconfig
@@ -339,7 +339,7 @@ CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_QUOTA=y
CONFIG_QFMT_V2=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig
index 22a403d..d98375c 100644
--- a/arch/powerpc/configs/cell_defconfig
+++ b/arch/powerpc/configs/cell_defconfig
@@ -199,7 +199,7 @@ CONFIG_UIO=m
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/powerpc/configs/ep8248e_defconfig b/arch/powerpc/configs/ep8248e_defconfig
index fceffb3..55a394c 100644
--- a/arch/powerpc/configs/ep8248e_defconfig
+++ b/arch/powerpc/configs/ep8248e_defconfig
@@ -58,7 +58,7 @@ CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
diff --git a/arch/powerpc/configs/mgcoge_defconfig b/arch/powerpc/configs/mgcoge_defconfig
index 8fa84f1..a7ad80c 100644
--- a/arch/powerpc/configs/mgcoge_defconfig
+++ b/arch/powerpc/configs/mgcoge_defconfig
@@ -70,7 +70,7 @@ CONFIG_USB_G_SERIAL=y
CONFIG_UIO=y
CONFIG_UIO_PDRV=y
CONFIG_EXT2_FS=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
diff --git a/arch/powerpc/configs/mpc8272_ads_defconfig b/arch/powerpc/configs/mpc8272_ads_defconfig
index 6a22400..893d8b9 100644
--- a/arch/powerpc/configs/mpc8272_ads_defconfig
+++ b/arch/powerpc/configs/mpc8272_ads_defconfig
@@ -65,7 +65,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig
index bd8a6f7..0905445 100644
--- a/arch/powerpc/configs/pasemi_defconfig
+++ b/arch/powerpc/configs/pasemi_defconfig
@@ -156,7 +156,7 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_UDF_FS=y
CONFIG_MSDOS_FS=y
diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig
index a73626b..74912c0 100644
--- a/arch/powerpc/configs/pmac32_defconfig
+++ b/arch/powerpc/configs/pmac32_defconfig
@@ -315,7 +315,7 @@ CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT4_FS=y
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index c86fcb9..67a96ac 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -351,7 +351,7 @@ CONFIG_XFS_POSIX_ACL=y
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=y
CONFIG_UDF_FS=m
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index 4b20f76..c216d80 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -273,7 +273,7 @@ CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_POSIX_ACL=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_ISO9660_FS=y
CONFIG_UDF_FS=m
CONFIG_MSDOS_FS=y
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 20ebfaf..c25f597 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -1122,7 +1122,7 @@ CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
diff --git a/arch/powerpc/configs/pq2fads_defconfig b/arch/powerpc/configs/pq2fads_defconfig
index baad8db..9102a31 100644
--- a/arch/powerpc/configs/pq2fads_defconfig
+++ b/arch/powerpc/configs/pq2fads_defconfig
@@ -69,7 +69,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_INOTIFY=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_CRAMFS=y
diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig
index 139a830..b34fef3 100644
--- a/arch/powerpc/configs/ps3_defconfig
+++ b/arch/powerpc/configs/ps3_defconfig
@@ -150,7 +150,7 @@ CONFIG_EXT3_FS=m
CONFIG_EXT4_FS=y
CONFIG_QUOTA=y
CONFIG_QFMT_V2=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_UDF_FS=m
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index bea8587..b6b835a 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -281,7 +281,7 @@ CONFIG_XFS_POSIX_ACL=y
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_NILFS2_FS=m
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=m
CONFIG_ISO9660_FS=y
CONFIG_UDF_FS=m
diff --git a/arch/score/configs/spct6600_defconfig b/arch/score/configs/spct6600_defconfig
index df1edbf..dadf48f 100644
--- a/arch/score/configs/spct6600_defconfig
+++ b/arch/score/configs/spct6600_defconfig
@@ -57,7 +57,7 @@ CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_PROC_KCORE=y
# CONFIG_PROC_PAGE_MONITOR is not set
CONFIG_TMPFS=y
diff --git a/arch/sh/configs/espt_defconfig b/arch/sh/configs/espt_defconfig
index 67cb109..491b842 100644
--- a/arch/sh/configs/espt_defconfig
+++ b/arch/sh/configs/espt_defconfig
@@ -74,7 +74,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/sh/configs/sdk7780_defconfig b/arch/sh/configs/sdk7780_defconfig
index ae11158..ef7736b 100644
--- a/arch/sh/configs/sdk7780_defconfig
+++ b/arch/sh/configs/sdk7780_defconfig
@@ -116,7 +116,7 @@ CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_POSIX_ACL=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
diff --git a/arch/sh/configs/sdk7786_defconfig b/arch/sh/configs/sdk7786_defconfig
index 76a76a2..3006c56 100644
--- a/arch/sh/configs/sdk7786_defconfig
+++ b/arch/sh/configs/sdk7786_defconfig
@@ -183,7 +183,7 @@ CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
CONFIG_XFS_FS=y
CONFIG_BTRFS_FS=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
CONFIG_FSCACHE=m
diff --git a/arch/sh/configs/sh03_defconfig b/arch/sh/configs/sh03_defconfig
index 2051821..93b661f 100644
--- a/arch/sh/configs/sh03_defconfig
+++ b/arch/sh/configs/sh03_defconfig
@@ -71,7 +71,7 @@ CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
diff --git a/arch/sh/configs/sh7763rdp_defconfig b/arch/sh/configs/sh7763rdp_defconfig
index 4795364..e324b42 100644
--- a/arch/sh/configs/sh7763rdp_defconfig
+++ b/arch/sh/configs/sh7763rdp_defconfig
@@ -75,7 +75,7 @@ CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
CONFIG_AUTOFS_FS=y
-CONFIG_AUTOFS4_FS=y
+# CONFIG_AUTOFS4_FS is not set
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
diff --git a/arch/sparc/configs/sparc32_defconfig b/arch/sparc/configs/sparc32_defconfig
index fb23fd6..1745260 100644
--- a/arch/sparc/configs/sparc32_defconfig
+++ b/arch/sparc/configs/sparc32_defconfig
@@ -71,7 +71,7 @@ CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_AUTOFS_FS=m
-CONFIG_AUTOFS4_FS=m
+# CONFIG_AUTOFS4_FS is not set
CONFIG_ISO9660_FS=m
CONFIG_PROC_KCORE=y
CONFIG_ROMFS_FS=m
diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig
index 4768481..a8196cf 100644
--- a/arch/tile/configs/tilegx_defconfig
+++ b/arch/tile/configs/tilegx_defconfig
@@ -443,7 +443,7 @@ CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
CONFIG_FSCACHE=m
diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig
index dd2b8f0..2fa5f6e 100644
--- a/arch/tile/configs/tilepro_defconfig
+++ b/arch/tile/configs/tilepro_defconfig
@@ -431,7 +431,7 @@ CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
CONFIG_FUSE_FS=y
CONFIG_CUSE=m
CONFIG_FSCACHE=m
diff --git a/arch/um/defconfig b/arch/um/defconfig
index 08107a7..9c13ef8 100644
--- a/arch/um/defconfig
+++ b/arch/um/defconfig
@@ -607,7 +607,7 @@ CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QFMT_V1 is not set
# CONFIG_QFMT_V2 is not set
CONFIG_QUOTACTL=y
-CONFIG_AUTOFS4_FS=m
+CONFIG_AUTOFS_FS=m
# CONFIG_FUSE_FS is not set
#
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 9444708..d28fc1f 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -266,7 +266,7 @@ CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 671524d..d702451 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -265,7 +265,7 @@ CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
CONFIG_QFMT_V2=y
-CONFIG_AUTOFS4_FS=y
+CONFIG_AUTOFS_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
diff --git a/arch/xtensa/configs/common_defconfig b/arch/xtensa/configs/common_defconfig
index a182a4e..2fe8b64 100644
--- a/arch/xtensa/configs/common_defconfig
+++ b/arch/xtensa/configs/common_defconfig
@@ -543,7 +543,6 @@ CONFIG_USB_ARCH_HAS_OHCI=y
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
diff --git a/arch/xtensa/configs/iss_defconfig b/arch/xtensa/configs/iss_defconfig
index 77c52f8..5ae3369 100644
--- a/arch/xtensa/configs/iss_defconfig
+++ b/arch/xtensa/configs/iss_defconfig
@@ -523,7 +523,6 @@ CONFIG_FSNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
#
diff --git a/arch/xtensa/configs/s6105_defconfig b/arch/xtensa/configs/s6105_defconfig
index 4799c6a..cf5fd90 100644
--- a/arch/xtensa/configs/s6105_defconfig
+++ b/arch/xtensa/configs/s6105_defconfig
@@ -503,7 +503,6 @@ CONFIG_FILE_LOCKING=y
# CONFIG_INOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
-# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
#
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS
2013-07-01 3:14 ` [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS Ian Kent
@ 2013-07-01 4:39 ` Stephen Rothwell
2013-07-05 9:51 ` Ian Kent
0 siblings, 1 reply; 12+ messages in thread
From: Stephen Rothwell @ 2013-07-01 4:39 UTC (permalink / raw)
To: Ian Kent
Cc: linux-next, linux-fsdevel, autofs mailing list, Kernel Mailing List
[-- Attachment #1: Type: text/plain, Size: 442 bytes --]
Hi Ian,
On Mon, 01 Jul 2013 11:14:51 +0800 Ian Kent <raven@themaw.net> wrote:
>
> Signed-off-by: Ian Kent <raven@themaw.net>
Please don't do this. Find a simple way to make sure that if
CONFIG_AUTOFS4_FS is set, then "make oldconfig" (or equivalent) will
cause CONFIG_AUTOFS_FS to be set the same.
The maintainers will update the defconfigs over time.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
[-- Attachment #2: Type: application/pgp-signature, Size: 836 bytes --]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS
2013-07-01 4:39 ` Stephen Rothwell
@ 2013-07-05 9:51 ` Ian Kent
2013-07-08 5:10 ` Stephen Rothwell
0 siblings, 1 reply; 12+ messages in thread
From: Ian Kent @ 2013-07-05 9:51 UTC (permalink / raw)
To: Stephen Rothwell
Cc: linux-next, linux-fsdevel, autofs mailing list, Kernel Mailing List
On Mon, 2013-07-01 at 14:39 +1000, Stephen Rothwell wrote:
> Hi Ian,
>
> On Mon, 01 Jul 2013 11:14:51 +0800 Ian Kent <raven@themaw.net> wrote:
> >
> > Signed-off-by: Ian Kent <raven@themaw.net>
>
> Please don't do this. Find a simple way to make sure that if
> CONFIG_AUTOFS4_FS is set, then "make oldconfig" (or equivalent) will
> cause CONFIG_AUTOFS_FS to be set the same.
I get what your recommending but still can't think of a way to do it,
any thoughts?
Am I correct that's a +1 for an outright rename of autofs4 to autofs
rather than keeping the autofs4 directory and a compile stub?
I think what I was intending to do (even though I don't really like that
either) isn't apparent since patch 6 didn't make it to the list. I've
re-organized the series since, so perhaps another post of the series to
the list will provoke some suggestions.
>
> The maintainers will update the defconfigs over time.
>
Perhaps the maintainers expected the rename to occur a long time ago
(and it probably should have) since after around three years the configs
are still out of date. Still, as you say, it isn't really my place to
fix that.
Ian
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS
2013-07-05 9:51 ` Ian Kent
@ 2013-07-08 5:10 ` Stephen Rothwell
2013-07-08 9:11 ` Ian Kent
0 siblings, 1 reply; 12+ messages in thread
From: Stephen Rothwell @ 2013-07-08 5:10 UTC (permalink / raw)
To: Ian Kent
Cc: linux-next, linux-fsdevel, autofs mailing list, Kernel Mailing List
[-- Attachment #1: Type: text/plain, Size: 896 bytes --]
Hi Ian,
On Fri, 05 Jul 2013 17:51:24 +0800 Ian Kent <raven@themaw.net> wrote:
>
> On Mon, 2013-07-01 at 14:39 +1000, Stephen Rothwell wrote:
> >
> > On Mon, 01 Jul 2013 11:14:51 +0800 Ian Kent <raven@themaw.net> wrote:
> > >
> > > Signed-off-by: Ian Kent <raven@themaw.net>
> >
> > Please don't do this. Find a simple way to make sure that if
> > CONFIG_AUTOFS4_FS is set, then "make oldconfig" (or equivalent) will
> > cause CONFIG_AUTOFS_FS to be set the same.
>
> I get what your recommending but still can't think of a way to do it,
> any thoughts?
Isn't just having
config AUTOFS4_FS
tristate
select AUTOFS_FS
enough?
> Am I correct that's a +1 for an outright rename of autofs4 to autofs
> rather than keeping the autofs4 directory and a compile stub?
I have no opinion :-)
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
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^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS
2013-07-08 5:10 ` Stephen Rothwell
@ 2013-07-08 9:11 ` Ian Kent
0 siblings, 0 replies; 12+ messages in thread
From: Ian Kent @ 2013-07-08 9:11 UTC (permalink / raw)
To: Stephen Rothwell
Cc: linux-next, linux-fsdevel, autofs mailing list, Kernel Mailing List
On Mon, 2013-07-08 at 15:10 +1000, Stephen Rothwell wrote:
> Hi Ian,
>
> On Fri, 05 Jul 2013 17:51:24 +0800 Ian Kent <raven@themaw.net> wrote:
> >
> > On Mon, 2013-07-01 at 14:39 +1000, Stephen Rothwell wrote:
> > >
> > > On Mon, 01 Jul 2013 11:14:51 +0800 Ian Kent <raven@themaw.net> wrote:
> > > >
> > > > Signed-off-by: Ian Kent <raven@themaw.net>
> > >
> > > Please don't do this. Find a simple way to make sure that if
> > > CONFIG_AUTOFS4_FS is set, then "make oldconfig" (or equivalent) will
> > > cause CONFIG_AUTOFS_FS to be set the same.
> >
> > I get what your recommending but still can't think of a way to do it,
> > any thoughts?
>
> Isn't just having
>
> config AUTOFS4_FS
> tristate
> select AUTOFS_FS
I though that would set AUTOFS_FS=y unconditionally which I think is not
necessarily the setting that is needed. Also, I believe there's no way
to set it based on AUTOFS4_FS after it's value has been set from the
menu.
Ian
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2013-07-08 9:11 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-07-01 3:14 [RFC PATCH 0/7] autofs4 - rename autofs4 to autofs Ian Kent
2013-07-01 3:14 ` [RFC PATCH 1/7] autofs4 - coding style fixes Ian Kent
2013-07-01 3:14 ` [RFC PATCH 2/7] autofs4 - fix string.h include in auto_dev-ioctl.h Ian Kent
2013-07-01 3:14 ` [RFC PATCH 3/7] autofs4 - move linux/auto_dev-ioctl.h to uapi/linux Ian Kent
2013-07-01 3:14 ` [RFC PATCH 4/7] autofs - merge auto_fs.h and auto_fs4.h Ian Kent
2013-07-01 3:14 ` [RFC PATCH 5/7] autofs - use autofs instead of autofs4 everywhere Ian Kent
2013-07-01 3:14 ` [RFC PATCH 6/7] autofs - rename module autofs4 to autofs Ian Kent
2013-07-01 3:14 ` [RFC PATCH 7/7] autofs - change CONFIG_AUTOFS4_FS to CONFIG_AUTOFS_FS Ian Kent
2013-07-01 4:39 ` Stephen Rothwell
2013-07-05 9:51 ` Ian Kent
2013-07-08 5:10 ` Stephen Rothwell
2013-07-08 9:11 ` Ian Kent
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