[PATCH] xfstests: add "quick" group

[Mark Goodwin]

Eric Sandeen wrote:
> Christoph Hellwig wrote:
>>> Most are probably close enough, but 178 looks nasty - seems to be
>>> xfs_repair that's taking so long.  These are running on 100G partitions,
>>> though :)
>> 178 only takes 16 seconds for me, running on 10G partitions.
> 
> interesting that a 10x size growth makes a 22x time growth.
> 

It would be interesting to see if Barry's "memory optimization"
patches (that I posted) improve the linearity here.

Cheers
-- Mark