Ensure a device can be added to a filesystem that has a paused balance
operation and has been mounted with the 'skip_balance' mount option
Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
---
tests/btrfs/049 | 47 +++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/049.out | 1 +
2 files changed, 48 insertions(+)
create mode 100755 tests/btrfs/049
diff --git a/tests/btrfs/049 b/tests/btrfs/049
new file mode 100755
index 000000000000..7f566ee112f1
--- /dev/null
+++ b/tests/btrfs/049
@@ -0,0 +1,47 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2021 SUSE Linux Products GmbH. All Rights Reserved.
+#
+# FS QA Test 049
+#
+# Ensure that it's possible to add a device when we have a paused balance
+# and the filesystem is mounted with skip_balance.
+#
+. ./common/preamble
+_begin_fstest quick balance auto
+
+# real QA test starts here
+
+_supported_fs btrfs
+_require_scratch_dev_pool
+
+_scratch_mkfs >/dev/null
+_scratch_mount
+
+uuid=$(findmnt -n -o UUID $SCRATCH_MNT)
+
+if [[ ! -e /sys/fs/btrfs/$uuid/exclusive_operation ]]; then
+ _notrun "Requires btrfs exclusive operation support"
+fi
+
+dev1="`echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}'`"
+
+# Create some files on the so that balance doesn't complete instantly
+args=`_scale_fsstress_args -z \
+ -f write=10 -f creat=10 \
+ -n 1000 -p 2 -d $SCRATCH_MNT/stress_dir`
+echo "Run fsstress $args" >>$seqres.full
+$FSSTRESS_PROG $args >/dev/null 2>&1
+
+# Start and pause balance to ensure it will be restored on remount
+echo "Start balance" >>$seqres.full
+_run_btrfs_balance_start --full-balance --bg "$SCRATCH_MNT"
+$BTRFS_UTIL_PROG balance pause "$SCRATCH_MNT"
+
+_scratch_cycle_mount "skip_balance"
+
+$BTRFS_UTIL_PROG device add -K -f $dev1 "$SCRATCH_MNT"
+
+echo "Silence is golden"
+status=0
+exit
diff --git a/tests/btrfs/049.out b/tests/btrfs/049.out
index cb0061b33ff0..c69568ad9323 100644
--- a/tests/btrfs/049.out
+++ b/tests/btrfs/049.out
@@ -1 +1,2 @@
QA output created by 049
+Silence is golden
--
2.17.1
