On Tue, May 5, 2015 at 8:03 PM, Anand Jain <anand.jain@xxxxxxxxxx> wrote:
> This test case will test to confirm the replace works when
> the replacing source device has EIO errors.
>
> EIO condition is achieved using the DM device.
>
> Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
> ---
> v1->v2: accepts Dave Chinner's review comments
>
> tests/btrfs/087 | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/btrfs/087.out | 2 ++
> tests/btrfs/group | 1 +
> 3 files changed, 73 insertions(+)
> create mode 100755 tests/btrfs/087
> create mode 100644 tests/btrfs/087.out
>
> diff --git a/tests/btrfs/087 b/tests/btrfs/087
> new file mode 100755
> index 0000000..01b8aec
> --- /dev/null
> +++ b/tests/btrfs/087
> @@ -0,0 +1,70 @@
> +#! /bin/bash
> +# FS QA Test No. btrfs/087
> +#
> +#test device replace works when the source device has EIO
> +#
> +# Copyright (c) 2015 Oracle. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#
> +
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +
> +_cleanup()
> +{
> + _cleanup_dmerror
> + rm -f $tmp
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/dmerror
> +
> +_supported_fs btrfs
> +_supported_os Linux
> +_need_to_be_root
> +_require_scratch_dev_pool 3
> +_require_dmerror
> +
> +rm -f $seqres.full
> +
> +dev1="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}'`"
> +dev2="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $3}'`"
> +
> +_init_dmerror
> +_scratch_mkfs_dmerror "-f -d raid1 -m raid1 $dev1"
> +_mount_dmerror
> +
> +#$BTRFS_UTIL_PROG filesystem show -m $SCRATCH_MNT | _filter_btrfs_filesystem_show
> +
> +error_devid=`$BTRFS_UTIL_PROG filesystem show -m $SCRATCH_MNT |\
> + egrep $DMERROR_DEV | $AWK_PROG '{print $2}'`
> +
> +# now load the error into the DMERROR_DEV
> +_load_dmerror_table
> +
> +_run_btrfs_util_prog replace start -B $error_devid $dev2 $SCRATCH_MNT
Can we make this more interesting/useful by having a non-empty fs
before exercising the replace?
For e.g. fsstress with a bunch snapshots:
snapshot_cmd="$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT"
snapshot_cmd="$snapshot_cmd $SCRATCH_MNT/snap_\`date +'%H_%M_%S_%N'\`"
$FSSTRESS_PROG -d $SCRATCH_MNT -n 200 -p 8 $FSSTRESS_AVOID -x
"$snapshot_cmd" -X 50
Same observation for your other test in this patch series.
thanks
> +
> +echo "Silence is golden"
> +status=0; exit
> diff --git a/tests/btrfs/087.out b/tests/btrfs/087.out
> new file mode 100644
> index 0000000..e84c64c
> --- /dev/null
> +++ b/tests/btrfs/087.out
> @@ -0,0 +1,2 @@
> +QA output created by 087
> +Silence is golden
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index e9c15af..d66b4fc 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -89,3 +89,4 @@
> 084 auto quick send
> 085 auto quick metadata subvol
> 086 auto quick clone
> +087 auto quick replace
> --
> 2.0.0.153.g79dcccc
>
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