fsnotify: introduce fsnotify_get_group()

[firefly-linux-kernel-4.4.55.git] / fs / notify / group.c

diff --git a/fs/notify/group.c b/fs/notify/group.c
index cfda328c3d11035011a639b5a613791bd2df40a2..1d57c35f10431b617dc39c6f7eedc2af18cd5cba 100644 (file)
--- a/fs/notify/group.c
+++ b/fs/notify/group.c
@@ -62,6 +62,14 @@ void fsnotify_destroy_group(struct fsnotify_group *group)
                fsnotify_final_destroy_group(group);
 }
 
+/*
+ * Get reference to a group.
+ */
+void fsnotify_get_group(struct fsnotify_group *group)
+{
+       atomic_inc(&group->refcnt);
+}
+
 /*
  * Drop a reference to a group.  Free it if it's through.
  */