This test case tests if we are able to unmount a filesystem while
a quota rescan is running. Up to now (4.3) this would result
in a kernel NULL pointer dereference.
Fixed by patch (btrfs: qgroup: exit the rescan worker during umount).
Signed-off-by: Justin Maggard <jmaggard@xxxxxxxxxxx>
---
tests/btrfs/114 | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/114.out | 2 ++
tests/btrfs/group | 1 +
3 files changed, 64 insertions(+)
create mode 100644 tests/btrfs/114
create mode 100644 tests/btrfs/114.out
diff --git a/tests/btrfs/114 b/tests/btrfs/114
new file mode 100644
index 0000000..0a0e8ba
--- /dev/null
+++ b/tests/btrfs/114
@@ -0,0 +1,61 @@
+#! /bin/bash
+# FS QA Test No. btrfs/114
+#
+# btrfs quota scan/unmount sanity test
+# Make sure that unmounting during a quota rescan doesn't crash
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015 NETGEAR, 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 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+
+_scratch_mkfs >>$seqres.full 2>&1
+_scratch_mount
+
+for i in `seq 0 1 450000`; do
+ echo -n > $SCRATCH_MNT/file.$i
+done
+echo 3 > /proc/sys/vm/drop_caches
+$BTRFS_UTIL_PROG quota enable $SCRATCH_MNT
+_scratch_unmount
+
+echo "Silence is golden"
+status=0
+exit
diff --git a/tests/btrfs/114.out b/tests/btrfs/114.out
new file mode 100644
index 0000000..a2aa4a2
--- /dev/null
+++ b/tests/btrfs/114.out
@@ -0,0 +1,2 @@
+QA output created by 114
+Silence is golden
diff --git a/tests/btrfs/group b/tests/btrfs/group
index 7cf7dd7..10ab26b 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -116,3 +116,4 @@
111 auto quick send
112 auto quick clone
113 auto quick compress clone
+114 auto qgroup
--
2.6.2
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