From f25934c5f88655a8d5c3c40a540daed1f0e6dedc Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 30 Oct 2009 08:03:27 +0100 Subject: 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 Signed-off-by: Steven Whitehouse --- fs/gfs2/incore.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/gfs2/incore.h') diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index c239b0f969c8..4792200978c8 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -429,6 +429,7 @@ struct gfs2_args { unsigned int ar_meta:1; /* mount metafs */ unsigned int ar_discard:1; /* discard requests */ unsigned int ar_errors:2; /* errors=withdraw | panic */ + unsigned int ar_nobarrier:1; /* do not send barriers */ int ar_commit; /* Commit interval */ int ar_statfs_quantum; /* The fast statfs interval */ int ar_quota_quantum; /* The quota interval */ -- cgit v1.2.3