On Tue, May 31, 2016 at 10:08 AM, luke <lufq.fnst@xxxxxxxxxxxxxx> wrote:
>
>
>
>
> At 05/31/2016 03:39 PM, Filipe Manana wrote:
>
> On Tue, May 31, 2016 at 3:03 AM, Lu Fengqi <lufq.fnst@xxxxxxxxxxxxxx> wrote:
>
> Test if qgroup can handle de-reference reallocation.
>
> What is "de-reference reallocation"?
>
>
> Sorry, I'm not good at English. I mean "extent de-reference during
> reallocation".
Well that's still not clear. It's not so much an English problem but
rather what do you mean with that concept.
Is is reading an extent (as a result of read or pread syscall for
e.g.), freeing an extent, or what?
thanks
>
> Although current
> qgroup can handle it, we still need to prevent any regression which may
> break current qgroup.
>
> Signed-off-by: Lu Fengqi <lufq.fnst@xxxxxxxxxxxxxx>
> ---
> common/rc | 4 +--
> tests/btrfs/028 | 91
> +++++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/btrfs/028.out | 2 ++
> tests/btrfs/group | 1 +
> 4 files changed, 96 insertions(+), 2 deletions(-)
> create mode 100755 tests/btrfs/028
> create mode 100644 tests/btrfs/028.out
>
> diff --git a/common/rc b/common/rc
> index 51092a0..650d198 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -3284,9 +3284,9 @@ _btrfs_get_profile_configs()
> # stress btrfs by running balance operation in a loop
> _btrfs_stress_balance()
> {
> - local btrfs_mnt=$1
> + local options=$@
> while true; do
> - $BTRFS_UTIL_PROG balance start $btrfs_mnt
> + $BTRFS_UTIL_PROG balance start $options
> done
> }
>
> diff --git a/tests/btrfs/028 b/tests/btrfs/028
> new file mode 100755
> index 0000000..6e0ad36
> --- /dev/null
> +++ b/tests/btrfs/028
> @@ -0,0 +1,91 @@
> +#! /bin/bash
> +# FS QA Test 028
>
> Missing a short description here of what the test does (what it tests).
>
> OK, I'll add this description.
>
>
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2016 Fujitsu. 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()
> +{
> + cd /
> + rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# remove previous $seqres.full before test
> +rm -f $seqres.full
> +
> +# real QA test starts here
> +_supported_fs btrfs
> +_supported_os Linux
> +_require_scratch
> +
> +# Currently in btrfs the node/leaf size can not be smaller than the page
> +# size (but it can be greater than the page size). So use the largest
> +# supported node/leaf size (64Kb) so that the test can run on any platform
> +# that Linux supports.
> +_scratch_mkfs "--nodesize 64k"
> +_scratch_mount
> +
> +_run_btrfs_util_prog quota enable $SCRATCH_MNT
> +_run_btrfs_util_prog quota rescan -w $SCRATCH_MNT
> +
> +# Increase the probability of generating de-refer extent, and decrease
> +# other.
>
> Again, what is a "de-refer extent"? I've never seen this expression
> before (and I don't others will understand it).
>
> thanks
>
> Ditto.
>
>
> +args=`_scale_fsstress_args -z \
> + -f write=10 -f unlink=10 \
> + -f creat=10 -f fsync=10 \
> + -f fsync=10 -n 100000 -p 2 \
> + -d $SCRATCH_MNT/stress_dir`
> +echo "Run fsstress $args" >>$seqres.full
> +$FSSTRESS_PROG $args >/dev/null 2>&1 &
> +fsstress_pid=$!
> +
> +echo "Start balance" >>$seqres.full
> +_btrfs_stress_balance -d $SCRATCH_MNT >/dev/null 2>&1 &
> +balance_pid=$!
> +
> +# 30s is enough to trigger bug
> +sleep $((30*$TIME_FACTOR))
> +kill $fsstress_pid $balance_pid
> +wait
> +
> +# kill _btrfs_stress_balance can't end balance, so call btrfs balance
> cancel
> +# to cancel running or paused balance.
> +$BTRFS_UTIL_PROG balance cancel $SCRATCH_MNT &> /dev/null
> +
> +rm -rf $SCRATCH_MNT/*
> +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT
> +units=`_btrfs_qgroup_units`
> +$BTRFS_UTIL_PROG qgroup show $units $SCRATCH_MNT | $SED_PROG -n '/[0-9]/p'
> | \
> + $AWK_PROG '{print $2" "$3}'
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/btrfs/028.out b/tests/btrfs/028.out
> new file mode 100644
> index 0000000..69b68bf
> --- /dev/null
> +++ b/tests/btrfs/028.out
> @@ -0,0 +1,2 @@
> +QA output created by 028
> +65536 65536
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index da0e27f..35ecf59 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -30,6 +30,7 @@
> 025 auto quick send clone
> 026 auto quick compress prealloc
> 027 auto replace
> +028 auto qgroup balance
> 029 auto quick clone
> 030 auto quick send
> 031 auto quick subvol clone
> --
> 2.5.5
>
>
>
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>
>
> Thanks,
> Lu
--
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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