fsnotify: send fsnotify_mark to groups in event handling functions

With the change of fsnotify to use srcu walking the marks list instead of
walking the global groups list we now know the mark in question.  The code can
send the mark to the group's handling functions and the groups won't have to
find those marks themselves.

Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index 8415939..225dc0c 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -92,9 +92,10 @@
  */
 struct fsnotify_ops {
 	bool (*should_send_event)(struct fsnotify_group *group, struct inode *inode,
-				  struct vfsmount *mnt, __u32 mask, void *data,
-				  int data_type);
-	int (*handle_event)(struct fsnotify_group *group, struct fsnotify_event *event);
+				  struct vfsmount *mnt, struct fsnotify_mark *mark,
+				  __u32 mask, void *data, int data_type);
+	int (*handle_event)(struct fsnotify_group *group, struct fsnotify_mark *mark,
+			    struct fsnotify_event *event);
 	void (*free_group_priv)(struct fsnotify_group *group);
 	void (*freeing_mark)(struct fsnotify_mark *mark, struct fsnotify_group *group);
 	void (*free_event_priv)(struct fsnotify_event_private_data *priv);