[PATCH V4] xfstests: don't remove the two first devices from SCRATCH_DEV_POOL

[Josef Bacik]

On Fri, Aug 23, 2013 at 03:07:10PM +0200, Stefan Behrens wrote:
> Since common/config is executed twice, if SCRATCH_DEV_POOL is configured
> via the environment, the current code removes the first device entry twice
> which means that you lose the second device for the test.
> 
> The fix is to not remove anything from SCRATCH_DEV_POOL anymore.
> That used to be done (I can only guess) to allow to pass the
> SCRATCH_DEV_POOL as an argument to _scratch_mkfs. Since _scratch_mkfs adds
> the SCRATCH_DEV, the pool mustn't contain that device anymore.
> 
> A new function _scratch_pool_mkfs is introduced that does the expected
> thing.
> 

This didn't break anything and makes sense

Reviewed-by: Josef Bacik <jbacik at fusionio.com>

Thanks,

Josef