On Fri, May 11, 2018 at 12:38:32AM +0800, Zorro Lang wrote:
> When test on large SCRATCH_DEV, grow a small XFS to huge size is a
> horrible thing (e.g grow 128m to 500T). So add a helper named
> _scratch_xfs_growfs() to do below things:
>
> 1) If a 'size' argument is specified, the filesystem will not be
> grown larger than that size (depend on the device size).
> 2) else if LARGE_SCRATCH_DEV = yes (--large-fs option), the
> filesystem will not be grown larger than 10x the current fs size.
> 3) else the scratch filesystem will be expanded to fit the scratch
> device.
>
> Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx>
> ---
>
> Hi,
>
> Thanks Eryu and Darrick help to review this patch.
>
> V2 has below changes:
> 1) Change function name _scratch_xfs_growfs_limited to _scratch_xfs_growfs
> 2) Change the comment about _scratch_xfs_growfs
> 3) Change local variable limit_size to max_size
>
> Thanks,
> Zorro
>
> common/xfs | 36 ++++++++++++++++++++++++++++++++++++
> tests/xfs/002 | 2 +-
> tests/xfs/127 | 2 +-
> tests/xfs/233 | 2 +-
> 4 files changed, 39 insertions(+), 3 deletions(-)
>
> diff --git a/common/xfs b/common/xfs
> index e0bc3f43..a6fe5bf9 100644
> --- a/common/xfs
> +++ b/common/xfs
> @@ -721,3 +721,39 @@ _require_xfs_db_write_array()
> rm -f $TEST_DIR/$seq.img
> [ $supported -eq 0 ] && _notrun "xfs_db write can't support array"
> }
> +
> +# Usage: _scratch_xfs_growfs [max_size_in_bytes]
> +#
> +# If max_size_in_bytes is specified, the filesystem will *not* be grown larger
> +# than that size (depend on the device size).
> +# Else if LARGE_SCRATCH_DEV = yes (--large-fs option), the filesystem will
> +# not be grown larger than 10x the current fs size.
> +# Else the scratch filesystem will be expanded to fit the scratch device.
> +_scratch_xfs_growfs()
> +{
> + local max_size="$1"
> + local option=""
> +
> + if [ "$LARGE_SCRATCH_DEV" = "yes" -o -n "$max_size" ]; then
> + local tmp=`mktemp -u`
> + xfs_info $SCRATCH_MNT | _filter_mkfs > /dev/null 2>$tmp.info
$XFS_INFO_PROG, not xfs_info (?)
Otherwise mostly looks fine to me.
--D
> + . $tmp.info
> + rm -f $tmp.info
> +
> + local fs_size=$((dbsize * dblocks))
> + local dev_size_kb=`_get_device_size $SCRATCH_DEV`
> +
> + # default max_size is 10 times current fs size.
> + if [ -z "$max_size" ]; then
> + max_size=$((fs_size * 10))
> + fi
> + # don't limit growfs size if device size is smaller
> + if [ $((dev_size_kb * 1024)) -gt $max_size ]; then
> + option="-D $((max_size / dbsize))"
> + else
> + option=""
> + fi
> + fi
> +
> + $XFS_GROWFS_PROG $option $SCRATCH_MNT
> +}
> diff --git a/tests/xfs/002 b/tests/xfs/002
> index 741117be..a77a8719 100755
> --- a/tests/xfs/002
> +++ b/tests/xfs/002
> @@ -68,7 +68,7 @@ _scratch_xfs_db -x -c "sb 2" -c "type data" -c "write fill 0xff 224 4"
> _scratch_mount
>
> # This should pass
> -$XFS_GROWFS_PROG $SCRATCH_MNT >> $seqres.full 2>&1 || _fail "growfs failed"
> +_scratch_xfs_growfs >> $seqres.full 2>&1 || _fail "growfs failed"
>
> # success, all done
> status=0
> diff --git a/tests/xfs/127 b/tests/xfs/127
> index 9df99904..272ea959 100755
> --- a/tests/xfs/127
> +++ b/tests/xfs/127
> @@ -61,7 +61,7 @@ _cp_reflink $testdir/original $testdir/copy1
> _cp_reflink $testdir/copy1 $testdir/copy2
>
> echo "Grow fs"
> -$XFS_GROWFS_PROG $SCRATCH_MNT 2>&1 | _filter_growfs >> $seqres.full
> +_scratch_xfs_growfs 2>&1 | _filter_growfs >> $seqres.full
> _scratch_cycle_mount
>
> echo "Create more reflink copies"
> diff --git a/tests/xfs/233 b/tests/xfs/233
> index e61c444d..f3689bc9 100755
> --- a/tests/xfs/233
> +++ b/tests/xfs/233
> @@ -59,7 +59,7 @@ cp -p $testdir/original $testdir/copy1
> cp -p $testdir/copy1 $testdir/copy2
>
> echo "Grow fs"
> -$XFS_GROWFS_PROG $SCRATCH_MNT 2>&1 | _filter_growfs >> $seqres.full
> +_scratch_xfs_growfs 2>&1 | _filter_growfs >> $seqres.full
> _scratch_cycle_mount
>
> echo "Create more copies"
> --
> 2.14.3
>
> --
> To unsubscribe from this list: send the line "unsubscribe fstests" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe fstests" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
