fsnotify: use a mutex instead of a spinlock to protect a groups mark list

Replaces the groups mark_lock spinlock with a mutex. Using a mutex instead
of a spinlock results in more flexibility (i.e it allows to sleep while the
lock is held).

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Eric Paris <eparis@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index e76cef75295d..c5848346840d 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -141,7 +141,7 @@ struct fsnotify_group {
         unsigned int priority;
 
         /* stores all fastpath marks assoc with this group so they can be cleaned on unregister */
-        spinlock_t mark_lock;           /* protect marks_list */
+        struct mutex mark_mutex;        /* protect marks_list */
         atomic_t num_marks;             /* 1 for each mark and 1 for not being
                                          * past the point of no return when freeing
                                          * a group */