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| author | Tejun Heo <tj@kernel.org> | 2013-11-28 14:54:27 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-11-29 17:48:14 -0800 |
| commit | 024f647117d697165aaadf3f1af1343b7000149a (patch) | |
| tree | 79dcad5d6babfe359c443093fe7e5bed84322ef7 /include/linux/sysfs.h | |
| parent | d19b9846df64d8845be682b6318bd1aee246cf60 (diff) | |
| download | lwn-024f647117d697165aaadf3f1af1343b7000149a.tar.gz lwn-024f647117d697165aaadf3f1af1343b7000149a.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/sysfs.h')
| -rw-r--r-- | include/linux/sysfs.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 2bc735d3e938..0ab2b023b613 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -243,7 +243,6 @@ void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name, const char *link_name); void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr); -void sysfs_notify_dirent(struct sysfs_dirent *sd); struct sysfs_dirent *sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd, const unsigned char *name, const void *ns); @@ -418,9 +417,6 @@ static inline void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr) { } -static inline void sysfs_notify_dirent(struct sysfs_dirent *sd) -{ -} static inline struct sysfs_dirent * sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd, const unsigned char *name, const void *ns) @@ -466,4 +462,9 @@ sysfs_get_dirent(struct sysfs_dirent *parent_sd, const unsigned char *name) return sysfs_get_dirent_ns(parent_sd, name, NULL); } +static inline void sysfs_notify_dirent(struct sysfs_dirent *sd) +{ + kernfs_notify(sd); +} + #endif /* _SYSFS_H_ */ |