From: Christoph Hellwig <hch@infradead.org>
To: viro@zeniv.linux.org.uk
Cc: linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org,
linux-ext4@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-mtd@lists.infradead.org, Mark Fasheh <mfasheh@suse.com>,
Joel Becker <jlbec@evilplan.org>,
reiserfs-devel@vger.kernel.org, xfs@oss.sgi.com,
jfs-discussion@lists.sourceforge.net, cluster-devel@redhat.com,
linux-nfs@vger.kernel.org,
Andreas Gruenbacher <andreas.gruenbacher@linbit.com>
Subject: [PATCH 08/21] btrfs: use generic posix ACL infrastructure
Date: Fri, 20 Dec 2013 05:16:43 -0800 [thread overview]
Message-ID: <20131220132522.409394274@bombadil.infradead.org> (raw)
In-Reply-To: 20131220131635.650823732@bombadil.infradead.org
Also don't bother to set up a .get_acl method for symlinks as we do not
support access control (ACLs or even mode bits) for symlinks in Linux.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/acl.c | 142 +++++++-----------------------------------------------
fs/btrfs/ctree.h | 7 +--
fs/btrfs/inode.c | 7 ++-
fs/btrfs/xattr.c | 5 +-
fs/btrfs/xattr.h | 2 -
5 files changed, 28 insertions(+), 135 deletions(-)
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index b56519d..ff9b399 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -35,13 +35,6 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
char *value = NULL;
struct posix_acl *acl;
- if (!IS_POSIXACL(inode))
- return NULL;
-
- acl = get_cached_acl(inode, type);
- if (acl != ACL_NOT_CACHED)
- return acl;
-
switch (type) {
case ACL_TYPE_ACCESS:
name = POSIX_ACL_XATTR_ACCESS;
@@ -76,31 +69,10 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
return acl;
}
-static int btrfs_xattr_acl_get(struct dentry *dentry, const char *name,
- void *value, size_t size, int type)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (!IS_POSIXACL(dentry->d_inode))
- return -EOPNOTSUPP;
-
- acl = btrfs_get_acl(dentry->d_inode, type);
-
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl == NULL)
- return -ENODATA;
- ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
- posix_acl_release(acl);
-
- return ret;
-}
-
/*
* Needs to be called with fs_mutex held
*/
-static int btrfs_set_acl(struct btrfs_trans_handle *trans,
+static int __btrfs_set_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct posix_acl *acl, int type)
{
int ret, size = 0;
@@ -158,35 +130,9 @@ out:
return ret;
}
-static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
- int ret;
- struct posix_acl *acl = NULL;
-
- if (!inode_owner_or_capable(dentry->d_inode))
- return -EPERM;
-
- if (!IS_POSIXACL(dentry->d_inode))
- return -EOPNOTSUPP;
-
- if (value) {
- acl = posix_acl_from_xattr(&init_user_ns, value, size);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
-
- if (acl) {
- ret = posix_acl_valid(acl);
- if (ret)
- goto out;
- }
- }
-
- ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type);
-out:
- posix_acl_release(acl);
-
- return ret;
+ return __btrfs_set_acl(NULL, inode, acl, type);
}
/*
@@ -197,83 +143,31 @@ out:
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir)
{
- struct posix_acl *acl = NULL;
+ struct posix_acl *default_acl, *acl;
int ret = 0;
/* this happens with subvols */
if (!dir)
return 0;
- if (!S_ISLNK(inode->i_mode)) {
- if (IS_POSIXACL(dir)) {
- acl = btrfs_get_acl(dir, ACL_TYPE_DEFAULT);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- }
+ ret = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
+ if (ret)
+ return ret;
- if (!acl)
- inode->i_mode &= ~current_umask();
+ if (default_acl) {
+ ret = __btrfs_set_acl(trans, inode, default_acl,
+ ACL_TYPE_DEFAULT);
+ posix_acl_release(default_acl);
}
- if (IS_POSIXACL(dir) && acl) {
- if (S_ISDIR(inode->i_mode)) {
- ret = btrfs_set_acl(trans, inode, acl,
- ACL_TYPE_DEFAULT);
- if (ret)
- goto failed;
- }
- ret = __posix_acl_create(&acl, GFP_NOFS, &inode->i_mode);
- if (ret < 0)
- return ret;
-
- if (ret > 0) {
- /* we need an acl */
- ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
- } else if (ret < 0) {
- cache_no_acl(inode);
- }
- } else {
- cache_no_acl(inode);
+ if (acl) {
+ if (!ret)
+ ret = __btrfs_set_acl(trans, inode, acl,
+ ACL_TYPE_ACCESS);
+ posix_acl_release(acl);
}
-failed:
- posix_acl_release(acl);
-
- return ret;
-}
-int btrfs_acl_chmod(struct inode *inode)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (S_ISLNK(inode->i_mode))
- return -EOPNOTSUPP;
-
- if (!IS_POSIXACL(inode))
- return 0;
-
- acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR_OR_NULL(acl))
- return PTR_ERR(acl);
-
- ret = __posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
- if (ret)
- return ret;
- ret = btrfs_set_acl(NULL, inode, acl, ACL_TYPE_ACCESS);
- posix_acl_release(acl);
+ if (!default_acl && !acl)
+ cache_no_acl(inode);
return ret;
}
-
-const struct xattr_handler btrfs_xattr_acl_default_handler = {
- .prefix = POSIX_ACL_XATTR_DEFAULT,
- .flags = ACL_TYPE_DEFAULT,
- .get = btrfs_xattr_acl_get,
- .set = btrfs_xattr_acl_set,
-};
-
-const struct xattr_handler btrfs_xattr_acl_access_handler = {
- .prefix = POSIX_ACL_XATTR_ACCESS,
- .flags = ACL_TYPE_ACCESS,
- .get = btrfs_xattr_acl_get,
- .set = btrfs_xattr_acl_set,
-};
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 54ab861..7506825 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3899,20 +3899,17 @@ do { \
/* acl.c */
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
struct posix_acl *btrfs_get_acl(struct inode *inode, int type);
+int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir);
-int btrfs_acl_chmod(struct inode *inode);
#else
#define btrfs_get_acl NULL
+#define btrfs_set_acl NULL
static inline int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir)
{
return 0;
}
-static inline int btrfs_acl_chmod(struct inode *inode)
-{
- return 0;
-}
#endif
/* relocation.c */
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f1a7744..b131430 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4464,7 +4464,7 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
err = btrfs_dirty_inode(inode);
if (!err && attr->ia_valid & ATTR_MODE)
- err = btrfs_acl_chmod(inode);
+ err = posix_acl_chmod(inode, inode->i_mode);
}
return err;
@@ -8649,12 +8649,14 @@ static const struct inode_operations btrfs_dir_inode_operations = {
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_dir_ro_inode_operations = {
.lookup = btrfs_lookup,
.permission = btrfs_permission,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
@@ -8724,6 +8726,7 @@ static const struct inode_operations btrfs_file_inode_operations = {
.permission = btrfs_permission,
.fiemap = btrfs_fiemap,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_special_inode_operations = {
@@ -8735,6 +8738,7 @@ static const struct inode_operations btrfs_special_inode_operations = {
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_symlink_inode_operations = {
@@ -8748,7 +8752,6 @@ static const struct inode_operations btrfs_symlink_inode_operations = {
.getxattr = btrfs_getxattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
- .get_acl = btrfs_get_acl,
.update_time = btrfs_update_time,
};
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 05740b9..3d1c301 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -22,6 +22,7 @@
#include <linux/rwsem.h>
#include <linux/xattr.h>
#include <linux/security.h>
+#include <linux/posix_acl_xattr.h>
#include "ctree.h"
#include "btrfs_inode.h"
#include "transaction.h"
@@ -313,8 +314,8 @@ err:
*/
const struct xattr_handler *btrfs_xattr_handlers[] = {
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
- &btrfs_xattr_acl_access_handler,
- &btrfs_xattr_acl_default_handler,
+ &posix_acl_access_xattr_handler,
+ &posix_acl_default_xattr_handler,
#endif
NULL,
};
diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h
index b3cc803..5049608 100644
--- a/fs/btrfs/xattr.h
+++ b/fs/btrfs/xattr.h
@@ -21,8 +21,6 @@
#include <linux/xattr.h>
-extern const struct xattr_handler btrfs_xattr_acl_access_handler;
-extern const struct xattr_handler btrfs_xattr_acl_default_handler;
extern const struct xattr_handler *btrfs_xattr_handlers[];
extern ssize_t __btrfs_getxattr(struct inode *inode, const char *name,
--
1.7.10.4
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: viro@zeniv.linux.org.uk
Cc: Andreas Gruenbacher <andreas.gruenbacher@linbit.com>,
xfs@oss.sgi.com, Mark Fasheh <mfasheh@suse.com>,
reiserfs-devel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com,
linux-mtd@lists.infradead.org, Joel Becker <jlbec@evilplan.org>,
jfs-discussion@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-nfs@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: [PATCH 08/21] btrfs: use generic posix ACL infrastructure
Date: Fri, 20 Dec 2013 05:16:43 -0800 [thread overview]
Message-ID: <20131220132522.409394274@bombadil.infradead.org> (raw)
In-Reply-To: 20131220131635.650823732@bombadil.infradead.org
[-- Attachment #1: 0008-btrfs-use-generic-posix-ACL-infrastructure.patch --]
[-- Type: text/plain, Size: 8582 bytes --]
Also don't bother to set up a .get_acl method for symlinks as we do not
support access control (ACLs or even mode bits) for symlinks in Linux.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/acl.c | 142 +++++++-----------------------------------------------
fs/btrfs/ctree.h | 7 +--
fs/btrfs/inode.c | 7 ++-
fs/btrfs/xattr.c | 5 +-
fs/btrfs/xattr.h | 2 -
5 files changed, 28 insertions(+), 135 deletions(-)
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index b56519d..ff9b399 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -35,13 +35,6 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
char *value = NULL;
struct posix_acl *acl;
- if (!IS_POSIXACL(inode))
- return NULL;
-
- acl = get_cached_acl(inode, type);
- if (acl != ACL_NOT_CACHED)
- return acl;
-
switch (type) {
case ACL_TYPE_ACCESS:
name = POSIX_ACL_XATTR_ACCESS;
@@ -76,31 +69,10 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
return acl;
}
-static int btrfs_xattr_acl_get(struct dentry *dentry, const char *name,
- void *value, size_t size, int type)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (!IS_POSIXACL(dentry->d_inode))
- return -EOPNOTSUPP;
-
- acl = btrfs_get_acl(dentry->d_inode, type);
-
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl == NULL)
- return -ENODATA;
- ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
- posix_acl_release(acl);
-
- return ret;
-}
-
/*
* Needs to be called with fs_mutex held
*/
-static int btrfs_set_acl(struct btrfs_trans_handle *trans,
+static int __btrfs_set_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct posix_acl *acl, int type)
{
int ret, size = 0;
@@ -158,35 +130,9 @@ out:
return ret;
}
-static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
- int ret;
- struct posix_acl *acl = NULL;
-
- if (!inode_owner_or_capable(dentry->d_inode))
- return -EPERM;
-
- if (!IS_POSIXACL(dentry->d_inode))
- return -EOPNOTSUPP;
-
- if (value) {
- acl = posix_acl_from_xattr(&init_user_ns, value, size);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
-
- if (acl) {
- ret = posix_acl_valid(acl);
- if (ret)
- goto out;
- }
- }
-
- ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type);
-out:
- posix_acl_release(acl);
-
- return ret;
+ return __btrfs_set_acl(NULL, inode, acl, type);
}
/*
@@ -197,83 +143,31 @@ out:
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir)
{
- struct posix_acl *acl = NULL;
+ struct posix_acl *default_acl, *acl;
int ret = 0;
/* this happens with subvols */
if (!dir)
return 0;
- if (!S_ISLNK(inode->i_mode)) {
- if (IS_POSIXACL(dir)) {
- acl = btrfs_get_acl(dir, ACL_TYPE_DEFAULT);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- }
+ ret = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
+ if (ret)
+ return ret;
- if (!acl)
- inode->i_mode &= ~current_umask();
+ if (default_acl) {
+ ret = __btrfs_set_acl(trans, inode, default_acl,
+ ACL_TYPE_DEFAULT);
+ posix_acl_release(default_acl);
}
- if (IS_POSIXACL(dir) && acl) {
- if (S_ISDIR(inode->i_mode)) {
- ret = btrfs_set_acl(trans, inode, acl,
- ACL_TYPE_DEFAULT);
- if (ret)
- goto failed;
- }
- ret = __posix_acl_create(&acl, GFP_NOFS, &inode->i_mode);
- if (ret < 0)
- return ret;
-
- if (ret > 0) {
- /* we need an acl */
- ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
- } else if (ret < 0) {
- cache_no_acl(inode);
- }
- } else {
- cache_no_acl(inode);
+ if (acl) {
+ if (!ret)
+ ret = __btrfs_set_acl(trans, inode, acl,
+ ACL_TYPE_ACCESS);
+ posix_acl_release(acl);
}
-failed:
- posix_acl_release(acl);
-
- return ret;
-}
-int btrfs_acl_chmod(struct inode *inode)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (S_ISLNK(inode->i_mode))
- return -EOPNOTSUPP;
-
- if (!IS_POSIXACL(inode))
- return 0;
-
- acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR_OR_NULL(acl))
- return PTR_ERR(acl);
-
- ret = __posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
- if (ret)
- return ret;
- ret = btrfs_set_acl(NULL, inode, acl, ACL_TYPE_ACCESS);
- posix_acl_release(acl);
+ if (!default_acl && !acl)
+ cache_no_acl(inode);
return ret;
}
-
-const struct xattr_handler btrfs_xattr_acl_default_handler = {
- .prefix = POSIX_ACL_XATTR_DEFAULT,
- .flags = ACL_TYPE_DEFAULT,
- .get = btrfs_xattr_acl_get,
- .set = btrfs_xattr_acl_set,
-};
-
-const struct xattr_handler btrfs_xattr_acl_access_handler = {
- .prefix = POSIX_ACL_XATTR_ACCESS,
- .flags = ACL_TYPE_ACCESS,
- .get = btrfs_xattr_acl_get,
- .set = btrfs_xattr_acl_set,
-};
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 54ab861..7506825 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3899,20 +3899,17 @@ do { \
/* acl.c */
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
struct posix_acl *btrfs_get_acl(struct inode *inode, int type);
+int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir);
-int btrfs_acl_chmod(struct inode *inode);
#else
#define btrfs_get_acl NULL
+#define btrfs_set_acl NULL
static inline int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir)
{
return 0;
}
-static inline int btrfs_acl_chmod(struct inode *inode)
-{
- return 0;
-}
#endif
/* relocation.c */
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f1a7744..b131430 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4464,7 +4464,7 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
err = btrfs_dirty_inode(inode);
if (!err && attr->ia_valid & ATTR_MODE)
- err = btrfs_acl_chmod(inode);
+ err = posix_acl_chmod(inode, inode->i_mode);
}
return err;
@@ -8649,12 +8649,14 @@ static const struct inode_operations btrfs_dir_inode_operations = {
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_dir_ro_inode_operations = {
.lookup = btrfs_lookup,
.permission = btrfs_permission,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
@@ -8724,6 +8726,7 @@ static const struct inode_operations btrfs_file_inode_operations = {
.permission = btrfs_permission,
.fiemap = btrfs_fiemap,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_special_inode_operations = {
@@ -8735,6 +8738,7 @@ static const struct inode_operations btrfs_special_inode_operations = {
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_symlink_inode_operations = {
@@ -8748,7 +8752,6 @@ static const struct inode_operations btrfs_symlink_inode_operations = {
.getxattr = btrfs_getxattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
- .get_acl = btrfs_get_acl,
.update_time = btrfs_update_time,
};
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 05740b9..3d1c301 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -22,6 +22,7 @@
#include <linux/rwsem.h>
#include <linux/xattr.h>
#include <linux/security.h>
+#include <linux/posix_acl_xattr.h>
#include "ctree.h"
#include "btrfs_inode.h"
#include "transaction.h"
@@ -313,8 +314,8 @@ err:
*/
const struct xattr_handler *btrfs_xattr_handlers[] = {
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
- &btrfs_xattr_acl_access_handler,
- &btrfs_xattr_acl_default_handler,
+ &posix_acl_access_xattr_handler,
+ &posix_acl_default_xattr_handler,
#endif
NULL,
};
diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h
index b3cc803..5049608 100644
--- a/fs/btrfs/xattr.h
+++ b/fs/btrfs/xattr.h
@@ -21,8 +21,6 @@
#include <linux/xattr.h>
-extern const struct xattr_handler btrfs_xattr_acl_access_handler;
-extern const struct xattr_handler btrfs_xattr_acl_default_handler;
extern const struct xattr_handler *btrfs_xattr_handlers[];
extern ssize_t __btrfs_getxattr(struct inode *inode, const char *name,
--
1.7.10.4
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: viro@zeniv.linux.org.uk
Cc: Andreas Gruenbacher <andreas.gruenbacher@linbit.com>,
xfs@oss.sgi.com, Mark Fasheh <mfasheh@suse.com>,
reiserfs-devel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com,
linux-mtd@lists.infradead.org, Joel Becker <jlbec@evilplan.org>,
jfs-discussion@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-nfs@vger.kernel.org, linux-btrfs@vger.kernel.org
Subject: [PATCH 08/21] btrfs: use generic posix ACL infrastructure
Date: Fri, 20 Dec 2013 05:16:43 -0800 [thread overview]
Message-ID: <20131220132522.409394274@bombadil.infradead.org> (raw)
In-Reply-To: 20131220131635.650823732@bombadil.infradead.org
[-- Attachment #1: 0008-btrfs-use-generic-posix-ACL-infrastructure.patch --]
[-- Type: text/plain, Size: 8459 bytes --]
Also don't bother to set up a .get_acl method for symlinks as we do not
support access control (ACLs or even mode bits) for symlinks in Linux.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/btrfs/acl.c | 142 +++++++-----------------------------------------------
fs/btrfs/ctree.h | 7 +--
fs/btrfs/inode.c | 7 ++-
fs/btrfs/xattr.c | 5 +-
fs/btrfs/xattr.h | 2 -
5 files changed, 28 insertions(+), 135 deletions(-)
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index b56519d..ff9b399 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -35,13 +35,6 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
char *value = NULL;
struct posix_acl *acl;
- if (!IS_POSIXACL(inode))
- return NULL;
-
- acl = get_cached_acl(inode, type);
- if (acl != ACL_NOT_CACHED)
- return acl;
-
switch (type) {
case ACL_TYPE_ACCESS:
name = POSIX_ACL_XATTR_ACCESS;
@@ -76,31 +69,10 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
return acl;
}
-static int btrfs_xattr_acl_get(struct dentry *dentry, const char *name,
- void *value, size_t size, int type)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (!IS_POSIXACL(dentry->d_inode))
- return -EOPNOTSUPP;
-
- acl = btrfs_get_acl(dentry->d_inode, type);
-
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl == NULL)
- return -ENODATA;
- ret = posix_acl_to_xattr(&init_user_ns, acl, value, size);
- posix_acl_release(acl);
-
- return ret;
-}
-
/*
* Needs to be called with fs_mutex held
*/
-static int btrfs_set_acl(struct btrfs_trans_handle *trans,
+static int __btrfs_set_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct posix_acl *acl, int type)
{
int ret, size = 0;
@@ -158,35 +130,9 @@ out:
return ret;
}
-static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
+int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
{
- int ret;
- struct posix_acl *acl = NULL;
-
- if (!inode_owner_or_capable(dentry->d_inode))
- return -EPERM;
-
- if (!IS_POSIXACL(dentry->d_inode))
- return -EOPNOTSUPP;
-
- if (value) {
- acl = posix_acl_from_xattr(&init_user_ns, value, size);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
-
- if (acl) {
- ret = posix_acl_valid(acl);
- if (ret)
- goto out;
- }
- }
-
- ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type);
-out:
- posix_acl_release(acl);
-
- return ret;
+ return __btrfs_set_acl(NULL, inode, acl, type);
}
/*
@@ -197,83 +143,31 @@ out:
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir)
{
- struct posix_acl *acl = NULL;
+ struct posix_acl *default_acl, *acl;
int ret = 0;
/* this happens with subvols */
if (!dir)
return 0;
- if (!S_ISLNK(inode->i_mode)) {
- if (IS_POSIXACL(dir)) {
- acl = btrfs_get_acl(dir, ACL_TYPE_DEFAULT);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- }
+ ret = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
+ if (ret)
+ return ret;
- if (!acl)
- inode->i_mode &= ~current_umask();
+ if (default_acl) {
+ ret = __btrfs_set_acl(trans, inode, default_acl,
+ ACL_TYPE_DEFAULT);
+ posix_acl_release(default_acl);
}
- if (IS_POSIXACL(dir) && acl) {
- if (S_ISDIR(inode->i_mode)) {
- ret = btrfs_set_acl(trans, inode, acl,
- ACL_TYPE_DEFAULT);
- if (ret)
- goto failed;
- }
- ret = __posix_acl_create(&acl, GFP_NOFS, &inode->i_mode);
- if (ret < 0)
- return ret;
-
- if (ret > 0) {
- /* we need an acl */
- ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
- } else if (ret < 0) {
- cache_no_acl(inode);
- }
- } else {
- cache_no_acl(inode);
+ if (acl) {
+ if (!ret)
+ ret = __btrfs_set_acl(trans, inode, acl,
+ ACL_TYPE_ACCESS);
+ posix_acl_release(acl);
}
-failed:
- posix_acl_release(acl);
-
- return ret;
-}
-int btrfs_acl_chmod(struct inode *inode)
-{
- struct posix_acl *acl;
- int ret = 0;
-
- if (S_ISLNK(inode->i_mode))
- return -EOPNOTSUPP;
-
- if (!IS_POSIXACL(inode))
- return 0;
-
- acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR_OR_NULL(acl))
- return PTR_ERR(acl);
-
- ret = __posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
- if (ret)
- return ret;
- ret = btrfs_set_acl(NULL, inode, acl, ACL_TYPE_ACCESS);
- posix_acl_release(acl);
+ if (!default_acl && !acl)
+ cache_no_acl(inode);
return ret;
}
-
-const struct xattr_handler btrfs_xattr_acl_default_handler = {
- .prefix = POSIX_ACL_XATTR_DEFAULT,
- .flags = ACL_TYPE_DEFAULT,
- .get = btrfs_xattr_acl_get,
- .set = btrfs_xattr_acl_set,
-};
-
-const struct xattr_handler btrfs_xattr_acl_access_handler = {
- .prefix = POSIX_ACL_XATTR_ACCESS,
- .flags = ACL_TYPE_ACCESS,
- .get = btrfs_xattr_acl_get,
- .set = btrfs_xattr_acl_set,
-};
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 54ab861..7506825 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3899,20 +3899,17 @@ do { \
/* acl.c */
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
struct posix_acl *btrfs_get_acl(struct inode *inode, int type);
+int btrfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir);
-int btrfs_acl_chmod(struct inode *inode);
#else
#define btrfs_get_acl NULL
+#define btrfs_set_acl NULL
static inline int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir)
{
return 0;
}
-static inline int btrfs_acl_chmod(struct inode *inode)
-{
- return 0;
-}
#endif
/* relocation.c */
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f1a7744..b131430 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4464,7 +4464,7 @@ static int btrfs_setattr(struct dentry *dentry, struct iattr *attr)
err = btrfs_dirty_inode(inode);
if (!err && attr->ia_valid & ATTR_MODE)
- err = btrfs_acl_chmod(inode);
+ err = posix_acl_chmod(inode, inode->i_mode);
}
return err;
@@ -8649,12 +8649,14 @@ static const struct inode_operations btrfs_dir_inode_operations = {
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_dir_ro_inode_operations = {
.lookup = btrfs_lookup,
.permission = btrfs_permission,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
@@ -8724,6 +8726,7 @@ static const struct inode_operations btrfs_file_inode_operations = {
.permission = btrfs_permission,
.fiemap = btrfs_fiemap,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_special_inode_operations = {
@@ -8735,6 +8738,7 @@ static const struct inode_operations btrfs_special_inode_operations = {
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.get_acl = btrfs_get_acl,
+ .set_acl = btrfs_set_acl,
.update_time = btrfs_update_time,
};
static const struct inode_operations btrfs_symlink_inode_operations = {
@@ -8748,7 +8752,6 @@ static const struct inode_operations btrfs_symlink_inode_operations = {
.getxattr = btrfs_getxattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
- .get_acl = btrfs_get_acl,
.update_time = btrfs_update_time,
};
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index 05740b9..3d1c301 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -22,6 +22,7 @@
#include <linux/rwsem.h>
#include <linux/xattr.h>
#include <linux/security.h>
+#include <linux/posix_acl_xattr.h>
#include "ctree.h"
#include "btrfs_inode.h"
#include "transaction.h"
@@ -313,8 +314,8 @@ err:
*/
const struct xattr_handler *btrfs_xattr_handlers[] = {
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
- &btrfs_xattr_acl_access_handler,
- &btrfs_xattr_acl_default_handler,
+ &posix_acl_access_xattr_handler,
+ &posix_acl_default_xattr_handler,
#endif
NULL,
};
diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h
index b3cc803..5049608 100644
--- a/fs/btrfs/xattr.h
+++ b/fs/btrfs/xattr.h
@@ -21,8 +21,6 @@
#include <linux/xattr.h>
-extern const struct xattr_handler btrfs_xattr_acl_access_handler;
-extern const struct xattr_handler btrfs_xattr_acl_default_handler;
extern const struct xattr_handler *btrfs_xattr_handlers[];
extern ssize_t __btrfs_getxattr(struct inode *inode, const char *name,
--
1.7.10.4
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH 08/21] btrfs: use generic posix ACL infrastructure
Date: Fri, 20 Dec 2013 05:16:43 -0800 [thread overview]
Message-ID: <20131220132522.409394274@bombadil.infradead.org> (raw)
In-Reply-To: 20131220131635.650823732@bombadil.infradead.org
An embedded and charset-unspecified text was scrubbed...
Name: 0008-btrfs-use-generic-posix-ACL-infrastructure.patch
URL: <http://listman.redhat.com/archives/cluster-devel/attachments/20131220/0daf8479/attachment.ksh>
next prev parent reply other threads:[~2013-12-20 13:25 UTC|newest]
Thread overview: 146+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-20 13:16 [PATCH 00/21] Consolidate Posix ACL implementation V3 Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 01/21] reiserfs: prefix ACL symbols with reiserfs_ Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 02/21] fs: merge xattr_acl.c into posix_acl.c Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 03/21] fs: add get_acl helper Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 04/21] fs: add a set_acl inode operation Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 05/21] fs: add generic xattr_acl handlers Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 06/21] fs: make posix_acl_chmod more useful Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 07/21] fs: make posix_acl_create " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig [this message]
2013-12-20 13:16 ` [Cluster-devel] [PATCH 08/21] btrfs: use generic posix ACL infrastructure Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 09/21] ext2/3/4: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 10/21] f2fs: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 11/21] hfsplus: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 12/21] jffs2: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 13/21] ocfs2: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 14/21] reiserfs: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 15/21] xfs: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 16/21] jfs: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 17/21] gfs2: " Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 18/21] nfs: use generic posix ACL infrastructure for v3 Posix ACLs Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 19/21] fs: remove generic_acl Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 20/21] nfsd: use get_acl and ->set_acl Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` [PATCH 21/21] hfsplus: remove can_set_xattr Christoph Hellwig
2013-12-20 13:16 ` [Cluster-devel] " Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-20 13:16 ` Christoph Hellwig
2013-12-21 17:07 ` Vyacheslav Dubeyko
2013-12-21 17:07 ` [Cluster-devel] " Vyacheslav Dubeyko
2013-12-21 17:07 ` Vyacheslav Dubeyko
2013-12-21 17:07 ` Vyacheslav Dubeyko
2013-12-22 19:28 ` Christoph Hellwig
2013-12-22 19:28 ` [Cluster-devel] " Christoph Hellwig
2013-12-22 19:28 ` Christoph Hellwig
2013-12-22 19:28 ` Christoph Hellwig
2013-12-22 19:28 ` Christoph Hellwig
2013-12-23 6:40 ` Vyacheslav Dubeyko
2013-12-23 6:40 ` [Cluster-devel] " Vyacheslav Dubeyko
2013-12-23 6:40 ` Vyacheslav Dubeyko
2013-12-23 6:40 ` Vyacheslav Dubeyko
2013-12-23 14:37 ` Christoph Hellwig
2013-12-23 14:37 ` [Cluster-devel] " Christoph Hellwig
2013-12-23 14:37 ` Christoph Hellwig
2013-12-23 14:37 ` Christoph Hellwig
2013-12-24 6:41 ` Vyacheslav Dubeyko
2013-12-24 6:41 ` [Cluster-devel] " Vyacheslav Dubeyko
2013-12-24 6:41 ` Vyacheslav Dubeyko
2013-12-24 6:41 ` Vyacheslav Dubeyko
2013-12-26 9:48 ` Christoph Hellwig
2013-12-26 10:15 ` Vyacheslav Dubeyko
2013-12-26 10:45 ` Christoph Hellwig
2013-12-26 10:59 ` Vyacheslav Dubeyko
2013-12-23 16:57 ` [PATCH 00/21] Consolidate Posix ACL implementation V3 Chris Mason
2013-12-23 16:57 ` [Cluster-devel] " Chris Mason
2013-12-23 16:57 ` Chris Mason
2013-12-23 16:57 ` Chris Mason
2013-12-23 16:57 ` Chris Mason
2013-12-23 17:01 ` hch
2013-12-23 17:01 ` [Cluster-devel] " hch
2013-12-23 17:01 ` hch
2013-12-23 17:01 ` hch
2013-12-23 17:01 ` hch
2014-01-07 15:53 ` Christoph Hellwig
2014-01-07 15:53 ` [Cluster-devel] " Christoph Hellwig
2014-01-07 15:53 ` Christoph Hellwig
2014-01-07 15:53 ` Christoph Hellwig
2014-01-07 15:53 ` Christoph Hellwig
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