tree a21e1ab167314292ffe2e3b319c8d5abf5faccd7
parent c14f5735e724cb5338ca8298d42b1658008a10d7
author Christoph Hellwig <hch@lst.de> 1256886207 +0100
committer Steven Whitehouse <swhiteho@redhat.com> 1259841354 +0000

GFS2: add barrier/nobarrier mount options

Currently gfs2 issues barrier unconditionally.  There are various reasons
to disable them, be that just for testing or for stupid devices flushing
large battert backed caches.  Add a nobarrier option that matches xfs and
btrfs for this.  Also add a symmetric barrier option to turn it back on
at remount time.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>