[PATCH] fstests: btrfs: add test for qgroup handle de-refer

[PATCH] fstests: btrfs: add test for qgroup handle de-refer

[Lu Fengqi]

Test if qgroup can handle de-reference reallocation. 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@cn.fujitsu.com>
---
 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
+#
+#-----------------------------------------------------------------------
+# 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.
+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

Re: [PATCH] fstests: btrfs: add test for qgroup handle de-refer

[Filipe Manana]

On Tue, May 31, 2016 at 3:03 AM, Lu Fengqi <lufq.fnst@cn.fujitsu.com> wrote:
> Test if qgroup can handle de-reference reallocation.

What is "de-reference reallocation"?

> 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@cn.fujitsu.com>
> ---
>  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).

> +#
> +#-----------------------------------------------------------------------
> +# 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

> +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
>
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe fstests" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html



-- 
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."

Re: [PATCH] fstests: btrfs: add test for qgroup handle de-refer

[Filipe Manana]

On Tue, May 31, 2016 at 10:08 AM, luke <lufq.fnst@cn.fujitsu.com> wrote:
>
>
>
>
> At 05/31/2016 03:39 PM, Filipe Manana wrote:
>
> On Tue, May 31, 2016 at 3:03 AM, Lu Fengqi <lufq.fnst@cn.fujitsu.com> 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@cn.fujitsu.com>
> ---
>  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
>
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe fstests" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>
> 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."

Re: [PATCH] fstests: btrfs: add test for qgroup handle de-refer

[luke]

At 05/31/2016 05:18 PM, Filipe Manana wrote:
> On Tue, May 31, 2016 at 10:08 AM, luke <lufq.fnst@cn.fujitsu.com> wrote:
>>
>>
>>
>> At 05/31/2016 03:39 PM, Filipe Manana wrote:
>>
>> On Tue, May 31, 2016 at 3:03 AM, Lu Fengqi <lufq.fnst@cn.fujitsu.com> 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
freeing an extent,to be exactly 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@cn.fujitsu.com>
>> ---
>>   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
>>
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe fstests" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>>
>> Thanks,
>> Lu
>
>

Re: [PATCH] fstests: btrfs: add test for qgroup handle de-refer

[Mark Fasheh]

Thanks for this test.

On Tue, May 31, 2016 at 10:03:54AM +0800, Lu Fengqi wrote:
> +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}'

Wouldn't it be better here to just have btrfsck check for inconsistencies?
If you look at tests/btrfs/122 this is what I mean:

+# generate a qgroup report and look for inconsistent groups
+$BTRFS_UTIL_PROG check --qgroup-report $SCRATCH_DEV 2>&1 | \
+                       grep -q -E "Counts for qgroup.*are different"
+if [ $? -ne 0 ]; then
+       status=0
+fi

That way we're not keying on some specific value showing up but instead that
qgroup validation passes (which is really what we want to test).

Thanks,
	--Mark

--
Mark Fasheh

Re: [PATCH] fstests: btrfs: add test for qgroup handle de-refer

[luke]

At 06/01/2016 03:51 AM, Mark Fasheh wrote:
> Thanks for this test.
>
> On Tue, May 31, 2016 at 10:03:54AM +0800, Lu Fengqi wrote:
>> +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" "$3}'
> Wouldn't it be better here to just have btrfsck check for inconsistencies?
> If you look at tests/btrfs/122 this is what I mean:
>
> +# generate a qgroup report and look for inconsistent groups
> +$BTRFS_UTIL_PROG check --qgroup-report $SCRATCH_DEV 2>&1 | \
> +                       grep -q -E "Counts for qgroup.*are different"
> +if [ $? -ne 0 ]; then
> +       status=0
> +fi
>
> That way we're not keying on some specific value showing up but instead that
> qgroup validation passes (which is really what we want to test).
>
> Thanks,
> 	--Mark
>
> --
> Mark Fasheh
>
>
OK, I will try this and update this patch.

Thanks,
Lu