diff options
| author | Jan Kara <jack@suse.cz> | 2016-10-08 01:56:52 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-08 03:46:26 +0200 |
| commit | c21dbe20f606219fe54faf555b7bc5565487c58f (patch) | |
| tree | 91e57fe4aad1f1358f099521b570d9daf7b6a758 /fs/notify/group.c | |
| parent | fsnotify: drop notification_mutex before destroying event (diff) | |
| download | linux-c21dbe20f606219fe54faf555b7bc5565487c58f.tar.xz linux-c21dbe20f606219fe54faf555b7bc5565487c58f.zip | |
fsnotify: convert notification_mutex to a spinlock
notification_mutex is used to protect the list of pending events. As such
there's no reason to use a sleeping lock for it. Convert it to a
spinlock.
[jack@suse.cz: fixed version]
Link: http://lkml.kernel.org/r/1474031567-1831-1-git-send-email-jack@suse.cz
Link: http://lkml.kernel.org/r/1473797711-14111-5-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/notify/group.c')
| -rw-r--r-- | fs/notify/group.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/notify/group.c b/fs/notify/group.c index b47f7cfdcaa4..fbe3cbebec16 100644 --- a/fs/notify/group.c +++ b/fs/notify/group.c @@ -45,9 +45,9 @@ static void fsnotify_final_destroy_group(struct fsnotify_group *group) */ void fsnotify_group_stop_queueing(struct fsnotify_group *group) { - mutex_lock(&group->notification_mutex); + spin_lock(&group->notification_lock); group->shutdown = true; - mutex_unlock(&group->notification_mutex); + spin_unlock(&group->notification_lock); } /* @@ -125,7 +125,7 @@ struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *ops) atomic_set(&group->refcnt, 1); atomic_set(&group->num_marks, 0); - mutex_init(&group->notification_mutex); + spin_lock_init(&group->notification_lock); INIT_LIST_HEAD(&group->notification_list); init_waitqueue_head(&group->notification_waitq); group->max_events = UINT_MAX; |