On Thu, Apr 12, 2018 at 09:10:28AM +0800, Su Yue wrote:
> This tests is most similar to xfstests generic/405.
> It calls device mapper to create a thin provision device with small
> backing size and big virtual size. mkfs.btrfs should fail on such
> devices.
>
> This test should pass after commit e805b143a4fe
> ("btrfs-progs: mkfs: return nozero value on thin provisioned device").
>
> Signed-off-by: Su Yue <suy.fnst@xxxxxxxxxxxxxx>
Applied with some tweaks, thanks.
> + # wait for device to be fully settled
> + run_check $SUDO_HELPER udevadm settle
> + run_check $SUDO_HELPER dmsetup remove "$DMTHIN_VOL_NAME"
> + run_check $SUDO_HELPER dmsetup remove "$DMTHIN_POOL_NAME"
> + run_check $SUDO_HELPER dmsetup remove "$DMTHIN_META_NAME"
> + run_check $SUDO_HELPER dmsetup remove "$DMTHIN_DATA_NAME"
extrenal utilities should be checked by check_global_prereq
> +# mkfs.btrfs should fail due to the small backing device
> +run_mustfail "should fail for small backing size thin provision device" \
> + $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$DMTHIN_VOL_DEV"
the automatic trim will slow mkfs down, so -K
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