From: Brian Foster <bfoster@redhat.com>
Date: Thu, 24 Jul 2014 09:56:08 +0000 (+1000)
Subject: xfs: squash prealloc while over quota free space as well
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~83^2~3^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f074051ff550f9f1f1a8ab4868277d049a7fd7aa;p=pandora-kernel.git

xfs: squash prealloc while over quota free space as well

From: Brian Foster <bfoster@redhat.com>

Commit 4d559a3b introduced heavy prealloc. squashing to catch the case
of requesting too large a prealloc on smaller filesystems, leading to
repeated flush and retry cycles that occur on ENOSPC. Now that we issue
eofblocks scans on EDQUOT/ENOSPC, squash the prealloc against the
minimum available free space across all applicable quotas as well to
avoid a similar problem of repeated eofblocks scans.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
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