Run btrfs balance and remount with different compress algorithms
simultaneously, with fsstress running in background.
Signed-off-by: Eryu Guan <eg...@redhat.com>
---
common/rc | 14 +++++++
tests/btrfs/062 | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/062.out | 2 +
tests/btrfs/group | 1 +
4 files changed, 131 insertions(+)
create mode 100755 tests/btrfs/062
create mode 100644 tests/btrfs/062.out
diff --git a/common/rc b/common/rc
index a333af8..571dfad 100644
--- a/common/rc
+++ b/common/rc
@@ -2614,6 +2614,20 @@ _btrfs_stress_defrag()
done
}
+# stress btrfs by remounting it with different compression algorithms in a loop
+# run this with fsstress running at background could exercise the compression
+# code path and ensure no race when switching compression algorithm with
constant
+# I/O activity.
+_btrfs_stress_remount_compress()
+{
+ local btrfs_mnt=$1
+ while true; do
+ for algo in no zlib lzo; do
+ $MOUNT_PROG -o remount,compress=$algo $btrfs_mnt
+ done
+ done
+}
+
init_rc()
{
if [ "$iam" == new ]
diff --git a/tests/btrfs/062 b/tests/btrfs/062
new file mode 100755
index 0000000..274da5c
--- /dev/null
+++ b/tests/btrfs/062
@@ -0,0 +1,114 @@
+#! /bin/bash
+# FSQA Test No. btrfs/062
+#
+# Run btrfs balance and remount with different compress algorithms
+# simultaneously, with fsstress running in background.
+#
+#-----------------------------------------------------------------------
+# Copyright (C) 2014 Red Hat Inc. 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
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+# we check scratch dev after each loop
+_require_scratch_nocheck
+_require_scratch_dev_pool 4
+_btrfs_get_profile_configs
+
+rm -f $seqres.full
+
+run_test()
+{
+ local mkfs_opts=$1
+
+ echo "Test $mkfs_opts" >>$seqres.full
+
+ _scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1
+ # make sure we created btrfs with desired options
+ if [ $? -ne 0 ]; then
+ echo "mkfs $mkfs_opts failed"
+ return
+ fi
+ _scratch_mount >>$seqres.full 2>&1
+
+ args=`_scale_fsstress_args -p 20 -n 100 $FSSTRESS_AVOID -d
$SCRATCH_MNT/stressdir`
+ echo "Run fsstress $args" >>$seqres.full
+ $FSSTRESS_PROG $args >/dev/null 2>&1 &
+ fsstress_pid=$!
+
+ echo -n "Start balance worker: " >>$seqres.full
+ _btrfs_stress_balance $SCRATCH_MNT >/dev/null 2>&1 &
+ balance_pid=$!
+ echo "$balance_pid" >>$seqres.full
+
+ echo -n "Start remount worker: " >>$seqres.full
+ _btrfs_stress_remount_compress $SCRATCH_MNT >/dev/null 2>&1 &
+ remount_pid=$!
+ echo "$remount_pid" >>$seqres.full
+
+ echo "Wait for fsstress to exit and kill all background workers"
>>$seqres.full
+ wait $fsstress_pid
+ kill $balance_pid $remount_pid
+ wait
+ # wait for the balance and remount loop to finish
+ while ps aux | grep "balance start" | grep -qv grep; do
+ sleep 1
+ done
+ while ps aux | grep "mount.*$SCRATCH_MNT" | grep -qv grep; do
+ sleep 1
+ done
+
+ echo "Scrub the filesystem" >>$seqres.full
+ $BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >>$seqres.full 2>&1
+ if [ $? -ne 0 ]; then
+ echo "Scrub find errors in \"$mkfs_opts\" test" | tee -a
$seqres.full
+ fi
+
+ _scratch_unmount
+ # we called _require_scratch_nocheck instead of _require_scratch
+ # do check after test for each profile config
+ _check_scratch_fs
+}
+
+echo "Silence is golden"
+for t in "${_btrfs_profile_configs[@]}"; do
+ run_test "$t"
+done
+
+status=0
+exit
diff --git a/tests/btrfs/062.out b/tests/btrfs/062.out
new file mode 100644
index 0000000..a1578f4
--- /dev/null
+++ b/tests/btrfs/062.out
@@ -0,0 +1,2 @@
+QA output created by 062
+Silence is golden
diff --git a/tests/btrfs/group b/tests/btrfs/group
index 85d30b3..7aa9bf3 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -64,3 +64,4 @@
059 auto balance subvol
060 auto balance scrub
061 auto balance defrag compress
+062 auto balance remount compress
--
1.8.3.1
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