linux-kernel - [PATCH 3.2 068/131] CIFS: Fix wrong directory attributes after rename

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Message-ID: <lsq.1410438733.186915663@decadent.org.uk>
Date:	Thu, 11 Sep 2014 13:32:13 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org, "Steve French" <smfrench@...il.com>,
	"Pavel Shilovsky" <pshilovsky@...ba.org>
Subject: [PATCH 3.2 068/131] CIFS: Fix wrong directory attributes after rename

3.2.63-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Pavel Shilovsky <pshilovsky@...ba.org>

commit b46799a8f28c43c5264ac8d8ffa28b311b557e03 upstream.

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.

Signed-off-by: Pavel Shilovsky <pshilovsky@...ba.org>
Signed-off-by: Steve French <smfrench@...il.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 fs/cifs/inode.c | 6 ++++++
 1 file changed, 6 insertions(+)

--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1638,6 +1638,12 @@ unlink_target:
 				    target_dentry, toName);
 	}
 
+	/* 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(fromName);

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