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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
btrfs: new case to run btrfs balance and device replace operations simultaneously
Run btrfs balance and replace operations simultaneously with fsstress running in background. Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Eryu Guan
Dave Chinner
@@ -2160,6 +2160,24 @@ _require_scratch_dev_pool()
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done
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}
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# ensure devices in SCRATCH_DEV_POOL are of the same size
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# must be called after _require_scratch_dev_pool
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_require_scratch_dev_pool_equal_size()
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{
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local _size
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local _newsize
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local _dev
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# SCRATCH_DEV has been set to the first device in SCRATCH_DEV_POOL
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_size=`_get_device_size $SCRATCH_DEV`
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for _dev in $SCRATCH_DEV_POOL; do
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_newsize=`_get_device_size $_dev`
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if [ $_size -ne $_newsize ]; then
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_notrun "This test requires devices in SCRATCH_DEV_POOL have the same size"
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fi
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done
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}
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# We will check if the device is deletable
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_require_deletable_scratch_dev_pool()
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{
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@@ -2631,6 +2649,61 @@ _btrfs_stress_remount_compress()
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done
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}
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# stress btrfs by replacing devices in a loop
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# Note that at least 3 devices are needed in SCRATCH_DEV_POOL and the last
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# device should be free(not used by btrfs)
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_btrfs_stress_replace()
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{
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local btrfs_mnt=$1
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# The device number in SCRATCH_DEV_POOL should be at least 3,
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# one is SCRATCH_DEV, one is to be replaced, one is free device
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# we won't replace SCRATCH_DEV, see below for reason
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if [ "`echo $SCRATCH_DEV_POOL | wc -w`" -lt 3 ]; then
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echo "_btrfs_stress_replace requires at least 3 devices in SCRATCH_DEV_POOL"
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return
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fi
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# take the last device as the first free_dev
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local free_dev="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $NF}'`"
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# free_dev should be really free
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if $BTRFS_UTIL_PROG filesystem show $btrfs_mnt | grep -q "$free_dev"; then
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echo "_btrfs_stress_replace: $free_dev is used by btrfs"
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return
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fi
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# dev_pool is device list being currently used by btrfs (excluding SCRATCH_DEV)
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# and can be replaced. We don't replace SCRATCH_DEV because it will be used in
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# _scratch_mount and _check_scratch_fs etc.
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local dev_pool=`echo $SCRATCH_DEV_POOL | sed -e "s# *$SCRATCH_DEV *##" \
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-e "s# *$free_dev *##"`
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# set the first device in dev_pool as the first src_dev to be replaced
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local src_dev=`echo $dev_pool | $AWK_PROG '{print $1}'`
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echo "dev_pool=$dev_pool"
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echo "free_dev=$free_dev, src_dev=$src_dev"
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while true; do
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echo "Replacing $src_dev with $free_dev"
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$BTRFS_UTIL_PROG replace start -fB $src_dev $free_dev $btrfs_mnt
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if [ $? -ne 0 ]; then
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# don't update src_dev and free_dev if replace failed
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continue
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fi
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dev_pool="$dev_pool $free_dev"
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dev_pool=`echo $dev_pool | sed -e "s# *$src_dev *##"`
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free_dev=$src_dev
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src_dev=`echo $dev_pool | $AWK_PROG '{print $1}'`
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done
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}
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# return device size in kb
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_get_device_size()
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{
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grep `_short_dev $1` /proc/partitions | awk '{print $3}'
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}
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init_rc()
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{
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if [ "$iam" == new ]
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Executable
+122
@@ -0,0 +1,122 @@
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#! /bin/bash
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# FSQA Test No. btrfs/064
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#
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# Run btrfs balance and replace operations simultaneously with fsstress
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# running in background.
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#
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#-----------------------------------------------------------------------
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# Copyright (C) 2014 Red Hat Inc. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs btrfs
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_supported_os Linux
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# we check scratch dev after each loop
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_require_scratch_nocheck
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_require_scratch_dev_pool 5
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_require_scratch_dev_pool_equal_size
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_btrfs_get_profile_configs replace
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rm -f $seqres.full
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run_test()
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{
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local mkfs_opts=$1
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local saved_scratch_dev_pool=$SCRATCH_DEV_POOL
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echo "Test $mkfs_opts" >>$seqres.full
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# remove the last device from the SCRATCH_DEV_POOL list so
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# _scratch_pool_mkfs won't use all devices in pool
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local last_dev="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $NF}'`"
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SCRATCH_DEV_POOL=`echo $SCRATCH_DEV_POOL | sed -e "s# *$last_dev *##"`
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_scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1
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# make sure we created btrfs with desired options
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if [ $? -ne 0 ]; then
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echo "mkfs $mkfs_opts failed"
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SCRATCH_DEV_POOL=$saved_scratch_dev_pool
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return
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fi
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_scratch_mount >>$seqres.full 2>&1
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SCRATCH_DEV_POOL=$saved_scratch_dev_pool
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args=`_scale_fsstress_args -p 20 -n 100 $FSSTRESS_AVOID -d $SCRATCH_MNT/stressdir`
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echo "Run fsstress $args" >>$seqres.full
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$FSSTRESS_PROG $args >/dev/null 2>&1 &
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fsstress_pid=$!
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echo -n "Start balance worker: " >>$seqres.full
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_btrfs_stress_balance $SCRATCH_MNT >/dev/null 2>&1 &
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balance_pid=$!
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echo "$balance_pid" >>$seqres.full
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echo -n "Start replace worker: " >>$seqres.full
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_btrfs_stress_replace $SCRATCH_MNT >>$seqres.full 2>&1 &
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replace_pid=$!
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echo "$replace_pid" >>$seqres.full
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echo "Wait for fsstress to exit and kill all background workers" >>$seqres.full
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wait $fsstress_pid
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kill $balance_pid $replace_pid
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wait
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# wait for the balance and replace operations to finish
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while ps aux | grep "balance start" | grep -qv grep; do
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sleep 1
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done
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while ps aux | grep "replace start" | grep -qv grep; do
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sleep 1
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done
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echo "Scrub the filesystem" >>$seqres.full
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$BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >>$seqres.full 2>&1
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if [ $? -ne 0 ]; then
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echo "Scrub find errors in \"$mkfs_opts\" test" | tee -a $seqres.full
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fi
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_scratch_unmount
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# we called _require_scratch_nocheck instead of _require_scratch
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# do check after test for each profile config
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_check_scratch_fs
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}
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echo "Silence is golden"
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for t in "${_btrfs_profile_configs[@]}"; do
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run_test "$t"
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done
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status=0
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exit
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@@ -0,0 +1,2 @@
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QA output created by 064
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Silence is golden
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@@ -66,3 +66,4 @@
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061 auto balance scrub
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062 auto balance defrag compress
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063 auto balance remount compress
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064 auto balance replace
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