diff options
| author | Tejun Heo <tj@kernel.org> | 2013-11-28 14:54:27 -0500 |
|---|---|---|
| committer | Pawel Osmialowski <p.osmialowsk@mcdsrvbld02.digital.local> | 2015-03-27 14:37:30 +0100 |
| commit | cf98677723fb0e42fa2b41a370bf85332bd3c750 (patch) | |
| tree | fe039a314b02737fe6e350a5e8e5cfce4e4efdde /include/linux/kernfs.h | |
| parent | ea72c71344e75459493113b7d264f5973ebdcfb8 (diff) | |
| download | linux-3.10-cf98677723fb0e42fa2b41a370bf85332bd3c750.tar.gz linux-3.10-cf98677723fb0e42fa2b41a370bf85332bd3c750.tar.bz2 linux-3.10-cf98677723fb0e42fa2b41a370bf85332bd3c750.zip | |
sysfs, kernfs: introduce kernfs_notify()
Introduce kernfs interface to wake up poll(2) which takes and returns
sysfs_dirents.
sysfs_notify_dirent() is renamed to kernfs_notify() and sysfs_notify()
is updated so that it doesn't directly grab sysfs_mutex but acquires
the target sysfs_dirents using sysfs_get_dirent().
sysfs_notify_dirent() is reimplemented as a dumb inline wrapper around
kernfs_notify().
This patch doesn't introduce any behavior changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/kernfs.h')
| -rw-r--r-- | include/linux/kernfs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index ba993ebcd81..f20796ecc76 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -84,6 +84,7 @@ int kernfs_rename_ns(struct sysfs_dirent *sd, struct sysfs_dirent *new_parent, const char *new_name, const void *new_ns); void kernfs_enable_ns(struct sysfs_dirent *sd); int kernfs_setattr(struct sysfs_dirent *sd, const struct iattr *iattr); +void kernfs_notify(struct sysfs_dirent *sd); #else /* CONFIG_SYSFS */ @@ -120,6 +121,8 @@ static inline int kernfs_setattr(struct sysfs_dirent *sd, const struct iattr *iattr) { return -ENOSYS; } +static inline void kernfs_notify(struct sysfs_dirent *sd) { } + #endif /* CONFIG_SYSFS */ static inline struct sysfs_dirent * |