fs/ceph/dir.c

1459 static int ceph_rename(struct mnt_idmap *idmap, struct inode *old_dir,
1463 	struct ceph_mds_client *mdsc = ceph_sb_to_mdsc(old_dir->i_sb);
1472 	if (ceph_snap(old_dir) != ceph_snap(new_dir))
1474 	if (ceph_snap(old_dir) != CEPH_NOSNAP) {
1475 		if (old_dir == new_dir && ceph_snap(old_dir) == CEPH_SNAPDIR)
1481 	if ((old_dir != new_dir) &&
1482 	    (!ceph_quota_is_same_realm(old_dir, new_dir)))
1489 	err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
1495 	      ceph_vinop(old_dir), old_dentry, ceph_vinop(new_dir),
1500 	ihold(old_dir);
1504 	req->r_old_dentry_dir = old_dir;
1518 	err = ceph_mdsc_do_request(mdsc, old_dir, req);