Re: xfs/310: relax extent count check

["Darrick J. Wong" <darrick.wong@oracle.com>]

On Sun, Sep 03, 2017 at 05:51:01PM +0200, Christoph Hellwig wrote:
> If we got over the bmbt length we'll always allocate two extents,
> its just that so far getbmap merged them.
> 
> Also fix/update some comments.
> 

Needs a s-o-b.  Otherwise,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> diff --git a/tests/xfs/310 b/tests/xfs/310
> index c78f6f1..f33a15a 100755
> --- a/tests/xfs/310
> +++ b/tests/xfs/310
> @@ -1,7 +1,7 @@
>  #! /bin/bash
>  # FS QA Test No. 310
>  #
> -# Create a file with more than 2^21 extents (the max length of a bmbt record).
> +# Create a file with more than 2^21 blocks (the max length of a bmbt record).
>  #
>  #-----------------------------------------------------------------------
>  # Copyright (c) 2016, Oracle and/or its affiliates.  All Rights Reserved.
> @@ -75,8 +75,9 @@ mkdir $testdir
>  blksz="$(_get_block_size $testdir)"
>  $XFS_IO_PROG -f -c "falloc 0 $((nr_blks * blksz))" $testdir/file1 >> $seqres.full
>  
> +# 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 $testdir/file1
>  inum=$(stat -c '%i' $testdir/file1)
>  umount $SCRATCH_MNT
>  
> --
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