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[XFS] Put back the QUEUE_ORDERED_NONE test in the barrier check. 

Put back the QUEUE_ORDERED_NONE test which caused us grief in sles when it
was taken out as, IIRC, it allowed md/lvm to be thought of as supporting
barriers when they weren't in some configurations. This patch will be
reverting what went in as part of a change for the SGI-pv 964544
(SGI-Modid: xfs-linux-melb:xfs-kern:28568a).

SGI-PV: 971783
SGI-Modid: xfs-linux-melb:xfs-kern:29882a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: David Chinner <dgc@sgi.com>
This commit is contained in:
Tim Shimmin 2007-10-15 13:18:59 +10:00 committed by Tim Shimmin
parent bebf963fec
commit cd514bdaa8
1 changed files with 8 additions and 0 deletions
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8
fs/xfs/linux-2.6/xfs_super.c
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@ -303,6 +303,14 @@ xfs_mountfs_check_barriers(xfs_mount_t *mp)
return;
}
if (mp->m_ddev_targp->bt_bdev->bd_disk->queue->ordered ==
QUEUE_ORDERED_NONE) {
xfs_fs_cmn_err(CE_NOTE, mp,
"Disabling barriers, not supported by the underlying device");
mp->m_flags &= ~XFS_MOUNT_BARRIER;
return;
}
if (xfs_readonly_buftarg(mp->m_ddev_targp)) {
xfs_fs_cmn_err(CE_NOTE, mp,
"Disabling barriers, underlying device is readonly");