linux-ext4 - Re: [PATCH 03/12] generic/80[0-2]: support xfs in addition to btrfs

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Date:	Thu, 15 Oct 2015 07:41:46 -0700
From:	"Darrick J. Wong" <darrick.wong@...cle.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	david@...morbit.com, fstests@...r.kernel.org,
	linux-ext4@...r.kernel.org, Anna.Schumaker@...app.com,
	linux-btrfs@...r.kernel.org, xfs@....sgi.com
Subject: Re: [PATCH 03/12] generic/80[0-2]: support xfs in addition to btrfs

On Thu, Oct 15, 2015 at 02:19:44AM -0700, Christoph Hellwig wrote:
> > +# this test requires the test fs support reflink...
> > +#
> > +_require_test_reflink()
> > +{
> > +    case $FSTYP in
> > +    xfs)
> > +	xfs_info "${TEST_DIR}" | grep reflink=1 -c -q || _notrun "Reflink not supported by this filesystem type: $FSTYP"
> > +	;;
> > +    btrfs)
> > +        true
> > +        ;;
> > +    *)
> > +        _notrun "Reflink not supported by this filesystem type: $FSTYP"
> > +        ;;
> > +    esac
> 
> I don't think that's a good test - we need to check if it's supported by
> trying it.  That'll automatically get us coverage for other file systems
> like xfs.
> 
> Note that dedup should get it's own feature check, as currently hacking
> nfs into this check will also run dedup tests that can't really be
> supported.

Good point.  I'll throw that in while I rework the tests.

--D

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