CIFS: Fix wrong directory attributes after rename

When we requests rename we also need to update attributes
of both source and target parent directories. Not doing it
causes generic/309 xfstest to fail on SMB2 mounts. Fix this
by marking these directories for force revalidating.

Cc: <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 41de3935caa0..753e7a3486de 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1717,6 +1717,12 @@ unlink_target:
                                     target_dentry, to_name);
         }
 
+        /* force revalidate to go get info when needed */
+        CIFS_I(source_dir)->time = CIFS_I(target_dir)->time = 0;
+
+        source_dir->i_ctime = source_dir->i_mtime = target_dir->i_ctime =
+                target_dir->i_mtime = current_fs_time(source_dir->i_sb);
+
 cifs_rename_exit:
         kfree(info_buf_source);
         kfree(from_name);