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kernfs: add CONFIG_KERNFS

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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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo
2014-02-03 14:09:17 -05:00
committed by Greg Kroah-Hartman
parent fa4cd451cc
commit ba341d55a4
5 changed files with 14 additions and 4 deletions
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6
include/linux/kernfs.h
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@@ -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)