diff --git a/fs/attr.c b/fs/attr.c
index 6530ced..25b24d0 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -195,7 +195,7 @@
 	struct timespec now;
 	unsigned int ia_valid = attr->ia_valid;
 
-	WARN_ON_ONCE(!mutex_is_locked(&inode->i_mutex));
+	WARN_ON_ONCE(!inode_is_locked(inode));
 
 	if (ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_TIMES_SET)) {
 		if (IS_IMMUTABLE(inode) || IS_APPEND(inode))