Date: Sun, 12 Oct 2008 14:30:44 +0200
From: Christoph Hellwig <hch@lst.de>
To: xfs@oss.sgi.com
Subject: [PATCH] fix remount rw with unrecognized options
Message-ID: <20081012123044.GA30272@lst.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.3.28i

When we skip unrecognized options in xfs_fs_remount we should just break
out of the switch and not return because otherwise we may skip clearing
the xfs-internal read-only flag.  This will only show up on some
operations like touch because most read-only checks are done by the VFS
which things this filesystem is r/w.  Eventually we should replace the
XFS read-only flag with a helper that always checks the VFS flag to make
sure they can never get out of sync.

Bug reported and fix verified by Marcel Beister on #xfs.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: linux-2.6-xfs/fs/xfs/linux-2.6/xfs_super.c
===================================================================
--- linux-2.6-xfs.orig/fs/xfs/linux-2.6/xfs_super.c	2008-10-11 00:59:04.000000000 +0200
+++ linux-2.6-xfs/fs/xfs/linux-2.6/xfs_super.c	2008-10-11 00:59:35.000000000 +0200
@@ -1218,7 +1218,7 @@ xfs_fs_remount(
 	"XFS: mount option \"%s\" not supported for remount\n", p);
 			return -EINVAL;
 #else
-			return 0;
+			break;
 #endif
 		}
 	}