Re: [PATCH 2/2] generic/017: Do not create file systems with different block sizes

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On Mon, Jun 23, 2014 at 3:54 PM, Lukas Czerner <lczerner@xxxxxxxxxx> wrote:
> User takes care about specifying mkfs options he wishes to test and the
> test itself should not change it if it's not strictly necessary for the
> test itself.
>
> In this case it is not necessary and we should only test configuration
> provided by the user. Moreover if the block size was already specified
> some mkfs utilities does not handle multiple of the same parameters and
> the mkfs utility fails making it re-try with only provided options
> (ignoring what user specified), which is wrong.
>
> In this case it's also a problem for btrfs file system which does not
> support block size < page size.
>
> Fix it by removing the mkfs, and testing existing configuration only.
>
> Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>

Tested-by: Filipe Manana <fdmanana@xxxxxxxxx>

Works for btrfs. So please ignore the workaround patch I sent earlier today.
Thanks Lukas

> ---
>  tests/generic/017     | 46 +++++++++++++++++-----------------------------
>  tests/generic/017.out |  2 --
>  2 files changed, 17 insertions(+), 31 deletions(-)
>
> diff --git a/tests/generic/017 b/tests/generic/017
> index 13b7254..11705bf 100755
> --- a/tests/generic/017
> +++ b/tests/generic/017
> @@ -49,41 +49,29 @@ _do_die_on_error=y
>  testfile=$SCRATCH_MNT/$seq.$$
>  BLOCKS=10240
>
> -for (( BSIZE = 1024; BSIZE <= 4096; BSIZE *= 2 )); do
> +BSIZE=`get_block_size $SCRATCH_MNT`
>
> -       length=$(($BLOCKS * $BSIZE))
> -       case $FSTYP in
> -       xfs)
> -       _scratch_mkfs -b size=$BSIZE >> $seqres.full 2>&1
> -       ;;
> -       ext4)
> -       _scratch_mkfs -b $BSIZE >> $seqres.full 2>&1
> -       ;;
> -       esac
> -       _scratch_mount >> $seqres.full 2>&1
> +length=$(($BLOCKS * $BSIZE))
>
> -       # Write file
> -       $XFS_IO_PROG -f -c "pwrite 0 $length" -c fsync $testfile > /dev/null
> +# Write file
> +$XFS_IO_PROG -f -c "pwrite 0 $length" -c fsync $testfile > /dev/null
>
> -       # Collapse alternate blocks
> -       for (( i = 1; i <= 7; i++ )); do
> -               for (( j=0; j < $(($BLOCKS/(2**$i))); j++ )); do
> -                       offset=$(($j*$BSIZE))
> -                       $XFS_IO_PROG -c "fcollapse $offset $BSIZE" $testfile > /dev/null
> -               done
> +# Collapse alternate blocks
> +for (( i = 1; i <= 7; i++ )); do
> +       for (( j=0; j < $(($BLOCKS/(2**$i))); j++ )); do
> +               offset=$(($j*$BSIZE))
> +               $XFS_IO_PROG -c "fcollapse $offset $BSIZE" $testfile > /dev/null
>         done
> +done
>
> -       # Check if 80 extents are present
> -       $XFS_IO_PROG -c "fiemap -v" $testfile | grep "^ *[0-9]*:" |wc -l
> -
> -       _check_scratch_fs
> -       if [ $? -ne 0 ]; then
> -               status=1
> -               exit
> -       fi
> +# Check if 80 extents are present
> +$XFS_IO_PROG -c "fiemap -v" $testfile | grep "^ *[0-9]*:" |wc -l
>
> -       umount $SCRATCH_MNT
> -done
> +_check_scratch_fs
> +if [ $? -ne 0 ]; then
> +       status=1
> +       exit
> +fi
>
>  # success, all done
>  status=0
> diff --git a/tests/generic/017.out b/tests/generic/017.out
> index cc524ac..ea9a7a8 100644
> --- a/tests/generic/017.out
> +++ b/tests/generic/017.out
> @@ -1,4 +1,2 @@
>  QA output created by 017
>  80
> -80
> -80
> --
> 1.8.3.1
>



-- 
Filipe David Manana,

"Reasonable men adapt themselves to the world.
 Unreasonable men adapt the world to themselves.
 That's why all progress depends on unreasonable men."
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