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authorJan Kara <jack@suse.cz>2014-04-03 14:46:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 16:20:51 -0700
commit9573f79355ff3711c98227d14a9b7f4cb3222b97 (patch)
treeb1ad8d66757b538cf67a570332ae263e2510fc50 /include
parentf083441ba86acb9e2ef9c1d1747725e488c8b1ff (diff)
fanotify: convert access_mutex to spinlock
access_mutex is used only to guard operations on access_list. There's no need for sleeping within this lock so just make a spinlock out of it. Signed-off-by: Jan Kara <jack@suse.cz> 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')
-rw-r--r--include/linux/fsnotify_backend.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 64cf3ef50696..fc7718c6bd3e 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -178,7 +178,7 @@ struct fsnotify_group {
struct fanotify_group_private_data {
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
/* allows a group to block waiting for a userspace response */
- struct mutex access_mutex;
+ spinlock_t access_lock;
struct list_head access_list;
wait_queue_head_t access_waitq;
atomic_t bypass_perm;