Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
On Tue, Jun 14, 2016 at 10:08 AM, Qu Wenruowrote: > > > At 06/14/2016 04:41 PM, Filipe Manana wrote: >> >> On Tue, Jun 14, 2016 at 1:58 AM, Qu Wenruo >> wrote: >>> >>> >>> >>> At 06/13/2016 05:49 PM, Filipe Manana wrote: On Mon, Jun 13, 2016 at 9:06 AM, Lu Fengqi wrote: > > > At 06/13/2016 03:29 PM, Lu Fengqi wrote: >> >> >> >> At 06/13/2016 11:04 AM, Eryu Guan wrote: >>> >>> >>> >>> On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi --- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -p 2 \ +-d $SCRATCH_MNT/stress_dir` +echo "Run fsstress $args" >>$seqres.full +$FSSTRESS_PROG $args >/dev/null 2>&1 &
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
At 06/14/2016 04:41 PM, Filipe Manana wrote: On Tue, Jun 14, 2016 at 1:58 AM, Qu Wenruowrote: At 06/13/2016 05:49 PM, Filipe Manana wrote: On Mon, Jun 13, 2016 at 9:06 AM, Lu Fengqi wrote: At 06/13/2016 03:29 PM, Lu Fengqi wrote: At 06/13/2016 11:04 AM, Eryu Guan wrote: On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi --- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -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 + +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT + +_scratch_unmount + +# generate a qgroup report and look for inconsistent groups +$BTRFS_UTIL_PROG check --qgroup-report $SCRATCH_DEV 2>&1 | \ +grep -q -E "Counts for qgroup.*are different" +if [ $? -ne 0 ]; then +echo "Silence is golden" +# success, all done +status=0 +fi I'm testing with 4.7-rc1 kernel and btrfs-progs v4.4, this test fails, which means btrfs check finds inconsistent groups. But according to your commit log, current kernel should pass the test. So is the failure expected? Also, just grep for different qgroup counts and print the message out if grep finds the message, so it breaks golden image on error and we know something really goes wrong. Right now test fails just because of missing "Silence is golden", which is unclear why it fails: @@ -1,2 +1 @@ QA output created by 028
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
On Tue, Jun 14, 2016 at 1:58 AM, Qu Wenruowrote: > > > At 06/13/2016 05:49 PM, Filipe Manana wrote: >> >> On Mon, Jun 13, 2016 at 9:06 AM, Lu Fengqi >> wrote: >>> >>> At 06/13/2016 03:29 PM, Lu Fengqi wrote: At 06/13/2016 11:04 AM, Eryu Guan wrote: > > > On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: >> >> >> Test if qgroup can handle extent de-reference during reallocation. >> "extent de-reference" means that reducing an extent's reference count >> or freeing an extent. >> Although current qgroup can handle it, we still need to prevent any >> regression which may break current qgroup. >> >> Signed-off-by: Lu Fengqi >> --- >> common/rc | 4 +-- >> tests/btrfs/028 | 98 >> + >> tests/btrfs/028.out | 2 ++ >> tests/btrfs/group | 1 + >> 4 files changed, 103 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 000..8cea49a >> --- /dev/null >> +++ b/tests/btrfs/028 >> @@ -0,0 +1,98 @@ >> +#! /bin/bash >> +# FS QA Test 028 >> +# >> +# Test if qgroup can handle extent de-reference during reallocation. >> +# "extent de-reference" means that reducing an extent's reference >> count >> +# or freeing an extent. >> +# Although current qgroup can handle it, we still need to prevent any >> +# regression which may break current qgroup. >> +# >> >> >> +#--- >> >> +# 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 >> + >> +_scratch_mkfs >> +_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 10 -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
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
At 06/13/2016 05:49 PM, Filipe Manana wrote: On Mon, Jun 13, 2016 at 9:06 AM, Lu Fengqiwrote: At 06/13/2016 03:29 PM, Lu Fengqi wrote: At 06/13/2016 11:04 AM, Eryu Guan wrote: On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi --- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -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 + +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT + +_scratch_unmount + +# generate a qgroup report and look for inconsistent groups +$BTRFS_UTIL_PROG check --qgroup-report $SCRATCH_DEV 2>&1 | \ +grep -q -E "Counts for qgroup.*are different" +if [ $? -ne 0 ]; then +echo "Silence is golden" +# success, all done +status=0 +fi I'm testing with 4.7-rc1 kernel and btrfs-progs v4.4, this test fails, which means btrfs check finds inconsistent groups. But according to your commit log, current kernel should pass the test. So is the failure expected? Also, just grep for different qgroup counts and print the message out if grep finds the message, so it breaks golden image on error and we know something really goes wrong. Right now test fails just because of missing "Silence is golden", which is unclear why it fails: @@ -1,2 +1 @@ QA output created by 028 -Silence is golden Do the following instead: $BTRFS_UTIL_PROG check ... | grep -E "..." echo "Silence is golden" status=0
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
At 06/13/2016 05:49 PM, Filipe Manana wrote: On Mon, Jun 13, 2016 at 9:06 AM, Lu Fengqiwrote: At 06/13/2016 03:29 PM, Lu Fengqi wrote: At 06/13/2016 11:04 AM, Eryu Guan wrote: On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi --- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -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 + +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT + +_scratch_unmount + +# 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 +echo "Silence is golden" +# success, all done +status=0 +fi I'm testing with 4.7-rc1 kernel and btrfs-progs v4.4, this test fails, which means btrfs check finds inconsistent groups. But according to your commit log, current kernel should pass the test. So is the failure expected? Also, just grep for different qgroup counts and print the message out if grep finds the message, so it breaks golden image on error and we know something really goes wrong. Right now test fails just because of missing "Silence is golden", which is unclear why it fails: @@ -1,2 +1 @@ QA output created by 028 -Silence is golden Do the following instead: $BTRFS_UTIL_PROG check ... | grep -E "..." echo "Silence is golden"
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
On Mon, Jun 13, 2016 at 9:06 AM, Lu Fengqiwrote: > At 06/13/2016 03:29 PM, Lu Fengqi wrote: >> >> At 06/13/2016 11:04 AM, Eryu Guan wrote: >>> >>> On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi --- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -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 + +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT + +_scratch_unmount + +# generate a qgroup report and look for inconsistent groups +$BTRFS_UTIL_PROG check --qgroup-report $SCRATCH_DEV 2>&1 | \ +grep -q -E "Counts for qgroup.*are different" +if [ $? -ne 0 ]; then +echo "Silence is golden" +# success, all done +status=0 +fi >>> >>> >>> I'm
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
At 06/13/2016 03:29 PM, Lu Fengqi wrote: At 06/13/2016 11:04 AM, Eryu Guan wrote: On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi--- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -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 + +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT + +_scratch_unmount + +# 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 +echo "Silence is golden" +# success, all done +status=0 +fi I'm testing with 4.7-rc1 kernel and btrfs-progs v4.4, this test fails, which means btrfs check finds inconsistent groups. But according to your commit log, current kernel should pass the test. So is the failure expected? Also, just grep for different qgroup counts and print the message out if grep finds the message, so it breaks golden image on error and we know something really goes wrong. Right now test fails just because of missing "Silence is golden", which is unclear why it fails: @@ -1,2 +1 @@ QA output created by 028 -Silence is golden Do the following instead: $BTRFS_UTIL_PROG check ... | grep -E "..." echo "Silence is golden" status=0 exit And we see this on failure: @@ -1,2 +1,3 @@ QA output created by 028 +Counts for qgroup id: 5 are different
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
At 06/13/2016 11:04 AM, Eryu Guan wrote: On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi--- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -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 + +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT + +_scratch_unmount + +# generate a qgroup report and look for inconsistent groups +$BTRFS_UTIL_PROG check --qgroup-report $SCRATCH_DEV 2>&1 | \ + grep -q -E "Counts for qgroup.*are different" +if [ $? -ne 0 ]; then + echo "Silence is golden" + # success, all done + status=0 +fi I'm testing with 4.7-rc1 kernel and btrfs-progs v4.4, this test fails, which means btrfs check finds inconsistent groups. But according to your commit log, current kernel should pass the test. So is the failure expected? Also, just grep for different qgroup counts and print the message out if grep finds the message, so it breaks golden image on error and we know something really goes wrong. Right now test fails just because of missing "Silence is golden", which is unclear why it fails: @@ -1,2 +1 @@ QA output created by 028 -Silence is golden Do the following instead: $BTRFS_UTIL_PROG check ... | grep -E "..." echo "Silence is golden" status=0 exit And we see this on failure: @@ -1,2 +1,3 @@ QA output created by 028 +Counts
Re: [PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
On Mon, Jun 13, 2016 at 10:10:50AM +0800, Lu Fengqi wrote: > Test if qgroup can handle extent de-reference during reallocation. > "extent de-reference" means that reducing an extent's reference count > or freeing an extent. > Although current qgroup can handle it, we still need to prevent any > regression which may break current qgroup. > > Signed-off-by: Lu Fengqi> --- > common/rc | 4 +-- > tests/btrfs/028 | 98 > + > tests/btrfs/028.out | 2 ++ > tests/btrfs/group | 1 + > 4 files changed, 103 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 000..8cea49a > --- /dev/null > +++ b/tests/btrfs/028 > @@ -0,0 +1,98 @@ > +#! /bin/bash > +# FS QA Test 028 > +# > +# Test if qgroup can handle extent de-reference during reallocation. > +# "extent de-reference" means that reducing an extent's reference count > +# or freeing an extent. > +# Although current qgroup can handle it, we still need to prevent any > +# regression which may break current qgroup. > +# > +#--- > +# 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 > + > +_scratch_mkfs > +_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 10 -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 > + > +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT > + > +_scratch_unmount > + > +# 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 > + echo "Silence is golden" > + # success, all done > + status=0 > +fi I'm testing with 4.7-rc1 kernel and btrfs-progs v4.4, this test fails, which means btrfs check finds inconsistent groups. But according to your commit log, current kernel should pass the test. So is the failure expected? Also, just grep for different qgroup counts and print the message out if grep finds the message, so it breaks golden image on error and we know something really goes wrong. Right now test fails just because of missing "Silence is golden", which is unclear why it fails: @@ -1,2 +1 @@ QA output created by 028 -Silence is golden Do the following instead:
[PATCH v3] fstests: btrfs: add test for qgroup handle extent de-reference
Test if qgroup can handle extent de-reference during reallocation. "extent de-reference" means that reducing an extent's reference count or freeing an extent. Although current qgroup can handle it, we still need to prevent any regression which may break current qgroup. Signed-off-by: Lu Fengqi--- common/rc | 4 +-- tests/btrfs/028 | 98 + tests/btrfs/028.out | 2 ++ tests/btrfs/group | 1 + 4 files changed, 103 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 000..8cea49a --- /dev/null +++ b/tests/btrfs/028 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test 028 +# +# Test if qgroup can handle extent de-reference during reallocation. +# "extent de-reference" means that reducing an extent's reference count +# or freeing an extent. +# Although current qgroup can handle it, we still need to prevent any +# regression which may break current qgroup. +# +#--- +# 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 + +_scratch_mkfs +_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 10 -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 + +_run_btrfs_util_prog filesystem sync $SCRATCH_MNT + +_scratch_unmount + +# generate a qgroup report and look for inconsistent groups +$BTRFS_UTIL_PROG check --qgroup-report $SCRATCH_DEV 2>&1 | \ + grep -q -E "Counts for qgroup.*are different" +if [ $? -ne 0 ]; then + echo "Silence is golden" + # success, all done + status=0 +fi + +exit diff --git a/tests/btrfs/028.out b/tests/btrfs/028.out new file mode 100644 index 000..2615f73 --- /dev/null +++ b/tests/btrfs/028.out @@ -0,0 +1,2 @@ +QA output created by 028 +Silence is golden 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 linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html