Re: xfs/310: relax extent count check

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On Mon, Sep 18, 2017 at 02:10:42PM -0700, Darrick J. Wong wrote:
> > +# make sure the allocator didn't allocate more than the needed two extents
> >  echo "Check extent count"
> > -xfs_bmap -l -p -v $testdir/file1 | grep '^[[:space:]]*1:' -q && xfs_bmap -l -p -v $testdir/file1
> > +xfs_bmap -l -p -v $testdir/file1 | grep '^[[:space:]]*2:' -q && xfs_bmap -l -p -v $testdir/file1
> 
> I haven't had time to read the getbmap rework over in xfs-land yet, but
> I'm assuming from this diff that the new getbmap no longer merges adjacent
> records?

Yes.

> Also, won't this break the test on old kernels?

No - it just checks we don't have more than two extents instead of
checking we don't have more than one, so it just relaxes the check
a bit.
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