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>
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index e76cef7..c584834 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -141,7 +141,7 @@
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 */