fsnotify: Pass fsnotify_iter_info into handle_event handler

Pass fsnotify_iter_info into ->handle_event() handler so that it can
release and reacquire SRCU lock via fsnotify_prepare_user_wait() and
fsnotify_finish_user_wait() functions.  These functions also make sure
current marks are appropriately pinned so that iteration protected by
srcu in fsnotify() stays safe.

Reviewed-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/kernel/audit_fsnotify.c b/kernel/audit_fsnotify.c
index 7ea57e5..e8b371f 100644
--- a/kernel/audit_fsnotify.c
+++ b/kernel/audit_fsnotify.c
@@ -168,7 +168,8 @@
 				    struct fsnotify_mark *inode_mark,
 				    struct fsnotify_mark *vfsmount_mark,
 				    u32 mask, const void *data, int data_type,
-				    const unsigned char *dname, u32 cookie)
+				    const unsigned char *dname, u32 cookie,
+				    struct fsnotify_iter_info *iter_info)
 {
 	struct audit_fsnotify_mark *audit_mark;
 	const struct inode *inode = NULL;