commit c7e9f78f7b459885ee472d661473aa87a0f24c04
author Steve French <stfrench@microsoft.com> Tue Feb 25 18:08:54 2020 -0600
committer Steve French <stfrench@microsoft.com> Sun Mar 22 22:49:09 2020 -0500
tree 390322ab08b2de20c0dfb9452fc801964944aac7
parent 69dda3059e7a4dbe02b05a38b4a066919da38a45

cifs: do d_move in rename

See commit 349457ccf2592c14bdf13b6706170ae2e94931b1
"Allow file systems to manually d_move() inside of ->rename()"

Lessens possibility of race conditions in rename

Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/inode.c

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index e6d6697..8d01ec2 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1835,6 +1835,8 @@ cifs_do_rename(const unsigned int xid, struct dentry *from_dentry,
 		CIFSSMBClose(xid, tcon, fid.netfid);
 	}
 do_rename_exit:
+	if (rc == 0)
+		d_move(from_dentry, to_dentry);
 	cifs_put_tlink(tlink);
 	return rc;
 }