[PATCH v2 3/3] xfs: squash prealloc while over quota free space as well

[Dave Chinner]

On Fri, May 23, 2014 at 07:52:30AM -0400, Brian Foster wrote:
> 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 at redhat.com>

Good idea - thrashing is something worth avoiding....

Reviewed-by: Dave Chinner <dchinner at redhat.com>

-- 
Dave Chinner
david at fromorbit.com