diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index fe02ae7..3b31723 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -215,7 +215,7 @@
 	if (IS_ERR(req))
 		return PTR_ERR(req);
 
-	mutex_lock(&d_inode(parent)->i_mutex);
+	inode_lock(d_inode(parent));
 
 	req->r_inode = d_inode(child);
 	ihold(d_inode(child));
@@ -224,7 +224,7 @@
 	req->r_num_caps = 2;
 	err = ceph_mdsc_do_request(mdsc, NULL, req);
 
-	mutex_unlock(&d_inode(parent)->i_mutex);
+	inode_unlock(d_inode(parent));
 
 	if (!err) {
 		struct ceph_mds_reply_info_parsed *rinfo = &req->r_reply_info;