Re: [PATCH 1/3] xfs/161: adapt the test case for 64k FS blocksize

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On Mon, May 06, 2024 at 05:01:17PM +0200, Pankaj Raghav (Samsung) wrote:
> From: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
> 
> This test fails when xfs is formatted with 64k filesystem block size*.
> It fails because the soft quota is not exceeded with the hardcoded 64k
> pwrite, thereby, the grace time is not set. Even though soft quota is
> set to 12k for uid1, it is rounded up to the nearest blocksize.
> 
> *** Report for user quotas on device /dev/sdb3
> Block grace time: 7days; Inode grace time: 7days
>                         Block limits                File limits
> User            used    soft    hard  grace    used  soft  hard  grace
> ----------------------------------------------------------------------
> 0        --       0       0       0      0       3     0     0      0
> 1        --      64      64    1024      0       1     0     0      0
> 2        --      64       0       0      0       1     0     0      0
> 
> Adapt the pwrite to do more than 64k write when the FS blocksize is 64k.
> 
> Cap the blksz to be at least 64k to retain the same behaviour as before
> for smaller filesystem blocksizes.
> 
> * This happens even on a 64k pagesize system and it is not related to
>   LBS effort.
> 
> Signed-off-by: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
> ---
>  tests/xfs/161 | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/xfs/161 b/tests/xfs/161
> index 486fa6ca..94290f18 100755
> --- a/tests/xfs/161
> +++ b/tests/xfs/161
> @@ -38,9 +38,15 @@ _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 "$SCRATCH_MNT")
> +# Write more than one block to exceed the soft block quota limit.
> +blksz=$(( 2 * $file_blksz))
> +
> +blksz=$(( blksz > min_blksz ? blksz : min_blksz ))

If we don't set $min_blksize and always write (2 * $file_blksz) does the
test still work?

--D

>  # 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
> -- 
> 2.34.1
> 




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