Re: [PATCH] xfs/259: handle minimum block size more precisely

[Christoph Hellwig <hch@infradead.org>]

On Fri, Apr 08, 2016 at 07:32:31AM +1000, Dave Chinner wrote:
> > diff --git a/tests/xfs/259 b/tests/xfs/259
> > index 16c1935..3150ff3 100755
> > --- a/tests/xfs/259
> > +++ b/tests/xfs/259
> > @@ -51,9 +51,7 @@ testfile=$TEST_DIR/259.image
> >  # Test various sizes slightly less than 4 TB. Need to handle different
> >  # minimum block sizes for CRC enabled filesystems, but use a small log so we
> >  # don't write lots of zeros unnecessarily.
> > -xfs_info $TEST_DIR | _filter_mkfs 2> $tmp.mkfs > /dev/null
> > -. $tmp.mkfs
> 
> This tests the configuration of the test device, which is not
> controlled by the test harness, so can be different to the
> configuration being used for the scratch device.
> 
> > -if [ $_fs_has_crcs -eq 1 ]; then
> > +if [ $XFS_MKFS_CRC_DEFAULT -eq 1 ]; then
> 
> IOWs, this is not an not equivalent test.

And I think that's the whole point of this change :)

Previously it tested what the TEST_DIR did, which was wrong for this
test.  Now it tests what mkfs does by default (including for the scratch
dev), which is what we really want here.