From: Tejun Heo <tj@kernel.org>
To: gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org, Tejun Heo <tj@kernel.org>,
linux-fsdevel@vger.kernel.org
Subject: [PATCH 10/10] kernfs: add CONFIG_KERNFS
Date: Mon, 3 Feb 2014 14:09:17 -0500 [thread overview]
Message-ID: <1391454557-32376-11-git-send-email-tj@kernel.org> (raw)
In-Reply-To: <1391454557-32376-1-git-send-email-tj@kernel.org>
As sysfs was kernfs's only user, kernfs has been piggybacking on
CONFIG_SYSFS; however, kernfs is scheduled to grow a new user very
soon. Introduce a separate config option CONFIG_KERNFS which is to be
selected by kernfs users.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-fsdevel@vger.kernel.org
---
fs/Kconfig | 1 +
fs/Makefile | 3 ++-
fs/kernfs/Kconfig | 7 +++++++
fs/sysfs/Kconfig | 1 +
include/linux/kernfs.h | 6 +++---
5 files changed, 14 insertions(+), 4 deletions(-)
create mode 100644 fs/kernfs/Kconfig
diff --git a/fs/Kconfig b/fs/Kconfig
index 7385e54..312393f 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -96,6 +96,7 @@ endif # BLOCK
menu "Pseudo filesystems"
source "fs/proc/Kconfig"
+source "fs/kernfs/Kconfig"
source "fs/sysfs/Kconfig"
config TMPFS
diff --git a/fs/Makefile b/fs/Makefile
index 47ac07b..f9cb987 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -52,7 +52,8 @@ obj-$(CONFIG_FHANDLE) += fhandle.o
obj-y += quota/
obj-$(CONFIG_PROC_FS) += proc/
-obj-$(CONFIG_SYSFS) += sysfs/ kernfs/
+obj-$(CONFIG_KERNFS) += kernfs/
+obj-$(CONFIG_SYSFS) += sysfs/
obj-$(CONFIG_CONFIGFS_FS) += configfs/
obj-y += devpts/
diff --git a/fs/kernfs/Kconfig b/fs/kernfs/Kconfig
new file mode 100644
index 0000000..397b5f7
--- /dev/null
+++ b/fs/kernfs/Kconfig
@@ -0,0 +1,7 @@
+#
+# KERNFS should be selected by its users
+#
+
+config KERNFS
+ bool
+ default n
diff --git a/fs/sysfs/Kconfig b/fs/sysfs/Kconfig
index 8c41fea..b275601 100644
--- a/fs/sysfs/Kconfig
+++ b/fs/sysfs/Kconfig
@@ -1,6 +1,7 @@
config SYSFS
bool "sysfs file system support" if EXPERT
default y
+ select KERNFS
help
The sysfs filesystem is a virtual filesystem that the kernel uses to
export internal kernel objects, their attributes, and their
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index b7cb267..32b696f 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -201,7 +201,7 @@ struct kernfs_ops {
#endif
};
-#ifdef CONFIG_SYSFS
+#ifdef CONFIG_KERNFS
static inline enum kernfs_node_type kernfs_type(struct kernfs_node *kn)
{
@@ -284,7 +284,7 @@ void kernfs_kill_sb(struct super_block *sb);
void kernfs_init(void);
-#else /* CONFIG_SYSFS */
+#else /* CONFIG_KERNFS */
static inline enum kernfs_node_type kernfs_type(struct kernfs_node *kn)
{ return 0; } /* whatever */
@@ -379,7 +379,7 @@ static inline void kernfs_kill_sb(struct super_block *sb) { }
static inline void kernfs_init(void) { }
-#endif /* CONFIG_SYSFS */
+#endif /* CONFIG_KERNFS */
static inline struct kernfs_node *
kernfs_find_and_get(struct kernfs_node *kn, const char *name)
--
1.8.5.3
next prev parent reply other threads:[~2014-02-03 19:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-03 19:09 [PATCHSET v2 driver-core-next] kernfs: prepare for cgroup's kernfs conversion Tejun Heo
2014-02-03 19:09 ` [PATCH 01/10] kernfs: invoke dir_ops while holding active ref of the target node Tejun Heo
2014-02-03 19:09 ` [PATCH 02/10] kernfs: rename kernfs_dir_ops to kernfs_syscall_ops Tejun Heo
2014-02-03 19:09 ` [PATCH 03/10] kernfs: implement kernfs_syscall_ops->remount_fs() and ->show_options() Tejun Heo
2014-02-03 19:09 ` [PATCH 04/10] kernfs: add missing kernfs_active() checks in directory operations Tejun Heo
2014-02-03 19:09 ` [PATCH 05/10] kernfs: allow nodes to be created in the deactivated state Tejun Heo
2014-02-03 19:09 ` [PATCH 06/10] kernfs: implement kernfs_ops->atomic_write_len Tejun Heo
2014-02-03 19:09 ` [PATCH 07/10] kernfs: add kernfs_open_file->priv Tejun Heo
2014-02-03 19:09 ` [PATCH 08/10] kernfs: implement kernfs_node_from_dentry(), kernfs_root_from_sb() and kernfs_rename() Tejun Heo
2014-02-03 19:09 ` [PATCH 09/10] kernfs: implement kernfs_get_parent(), kernfs_name/path() and friends Tejun Heo
2014-02-07 18:40 ` [PATCH v2 " Tejun Heo
2014-02-03 19:09 ` Tejun Heo [this message]
2014-02-07 18:41 ` [PATCH 9.5/10] sysfs, kobject: add sysfs wrapper for kernfs_enable_ns() Tejun Heo
2014-02-07 18:43 ` [PATCHSET v2 driver-core-next] kernfs: prepare for cgroup's kernfs conversion Tejun Heo
2014-02-08 0:12 ` Greg KH
2014-02-08 15:07 ` Tejun Heo
2014-02-08 15:08 ` Tejun Heo
2014-02-08 18:17 ` Greg KH
2014-02-08 18:17 ` Tejun Heo
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