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/ops_fstype.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/gfs2/ops_fstype.c') diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 9744ee92047..edfee24f363 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1131,6 +1131,8 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent } if (sdp->sd_args.ar_posix_acl) sb->s_flags |= MS_POSIXACL; + if (sdp->sd_args.ar_nobarrier) + set_bit(SDF_NOBARRIERS, &sdp->sd_flags); sb->s_magic = GFS2_MAGIC; sb->s_op = &gfs2_super_ops; -- cgit v1.2.3