diff options
| author |   Jan Kara <jack@suse.cz> | 2016-10-07 16:56:52 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-07 18:46:26 -0700 |
| commit | c21dbe20f606219fe54faf555b7bc5565487c58f (patch) | |
| tree | 91e57fe4aad1f1358f099521b570d9daf7b6a758 /include/linux/fsnotify_backend.h | |
| parent | fsnotify: drop notification_mutex before destroying event (diff) | |
| download | linux-dev-c21dbe20f606219fe54faf555b7bc5565487c58f.tar.xz linux-dev-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 'include/linux/fsnotify_backend.h')
| -rw-r--r-- | include/linux/fsnotify_backend.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 7268ed076be8..0713e873b1c9 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -135,7 +135,7 @@ struct fsnotify_group { const struct fsnotify_ops *ops; /* how this group handles things */ /* needed to send notification to userspace */ - struct mutex notification_mutex; /* protect the notification_list */ + spinlock_t notification_lock; /* protect the notification_list */ struct list_head notification_list; /* list of event_holder this group needs to send to userspace */ wait_queue_head_t notification_waitq; /* read() on the notification file blocks on this waitq */ unsigned int q_len; /* events on the queue */ |