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| author | Christoph Hellwig <hch@lst.de> | 2009-10-30 08:03:27 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2009-12-03 11:55:54 +0000 |
| commit | f25934c5f88655a8d5c3c40a540daed1f0e6dedc (patch) | |
| tree | a21e1ab167314292ffe2e3b319c8d5abf5faccd7 /fs/gfs2/incore.h | |
| parent | c14f5735e724cb5338ca8298d42b1658008a10d7 (diff) | |
| download | op-kernel-dev-f25934c5f88655a8d5c3c40a540daed1f0e6dedc.zip op-kernel-dev-f25934c5f88655a8d5c3c40a540daed1f0e6dedc.tar.gz | |
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>
Diffstat (limited to 'fs/gfs2/incore.h')
| -rw-r--r-- | fs/gfs2/incore.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index c239b0f..4792200 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 */ |
