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xfs: replace barriers with explicit flush / FUA usage

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Switch to the WRITE_FLUSH_FUA flag for log writes and remove the EOPNOTSUPP
detection for barriers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Christoph Hellwig 2010-08-18 05:29:11 -04:00 • committed by Jens Axboe
parent 2cf6d26a35
commit 80f6c29d8a
4 changed files with 3 additions and 38 deletions
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13
fs/xfs/xfs_log.c
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@ -916,19 +916,6 @@ xlog_iodone(xfs_buf_t *bp)
aborted = 0;
l = iclog->ic_log;
/*
* If the _XFS_BARRIER_FAILED flag was set by a lower
* layer, it means the underlying device no longer supports
* barrier I/O. Warn loudly and turn off barriers.
*/
if (bp->b_flags & _XFS_BARRIER_FAILED) {
bp->b_flags &= ~_XFS_BARRIER_FAILED;
l->l_mp->m_flags &= ~XFS_MOUNT_BARRIER;
xfs_fs_cmn_err(CE_WARN, l->l_mp,
"xlog_iodone: Barriers are no longer supported"
" by device. Disabling barriers\n");
}
/*
* Race to shutdown the filesystem if we see an error.
*/