Re: [PATCH 2/2] xfs/161: adapt the test case for LBS filesystem

["Darrick J. Wong" <djwong@kernel.org>]

On Mon, Jan 22, 2024 at 12:17:51PM +0100, Pankaj Raghav (Samsung) wrote:
> From: Pankaj Raghav <p.raghav@samsung.com>
> 
> This test fails for >= 64k filesystem block size on a 4k PAGE_SIZE
> system(see LBS efforts[1]). Adapt the blksz so that we create more than
> one block for the testcase.

How does this fail, specifically?  And, uh, what block sizes > 64k were
tested?

--D

> Cap the blksz to be at least 64k to retain the same behaviour as before
> for smaller filesystem blocksizes.
> 
> [1] LBS effort: https://lore.kernel.org/lkml/20230915183848.1018717-1-kernel@pankajraghav.com/
> 
> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
> ---
>  tests/xfs/161 | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/xfs/161 b/tests/xfs/161
> index 486fa6ca..f7b03f0e 100755
> --- a/tests/xfs/161
> +++ b/tests/xfs/161
> @@ -38,9 +38,14 @@ _qmount_option "usrquota"
>  _scratch_xfs_db -c 'version' -c 'sb 0' -c 'p' >> $seqres.full
>  _scratch_mount >> $seqres.full
>  
> +min_blksz=65536
> +file_blksz=$(_get_file_block_size "$SCRATCH_MNT")
> +blksz=$(( 2 * $file_blksz))
> +
> +blksz=$(( blksz > min_blksz ? blksz : min_blksz ))
>  # Force the block counters for uid 1 and 2 above zero
> -_pwrite_byte 0x61 0 64k $SCRATCH_MNT/a >> $seqres.full
> -_pwrite_byte 0x61 0 64k $SCRATCH_MNT/b >> $seqres.full
> +_pwrite_byte 0x61 0 $blksz $SCRATCH_MNT/a >> $seqres.full
> +_pwrite_byte 0x61 0 $blksz $SCRATCH_MNT/b >> $seqres.full
>  sync
>  chown 1 $SCRATCH_MNT/a
>  chown 2 $SCRATCH_MNT/b
> -- 
> 2.43.0
> 
>