This case tests truncate/collapse range race. If
the race occurs, it will trigger BUG_ON.
Signed-off-by: Xing Gu <gux.fnst@xxxxxxxxxxxxxx>
---
tests/generic/326 | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/326.out | 1 +
tests/generic/group | 1 +
3 files changed, 79 insertions(+)
create mode 100755 tests/generic/326
create mode 100644 tests/generic/326.out
diff --git a/tests/generic/326 b/tests/generic/326
new file mode 100755
index 0000000..c24e3ba
--- /dev/null
+++ b/tests/generic/326
@@ -0,0 +1,77 @@
+#! /bin/bash
+# FS QA Test No. 326
+#
+# Test truncate/collapse range race.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2014 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!
+
+_cleanup()
+{
+ rm -f $tmp.*
+}
+
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs generic
+_require_scratch
+_require_xfs_io_command "fcollapse"
+
+_scratch_mkfs > $seqres.full 2>&1
+_scratch_mount
+
+old_bug=`dmesg | grep -c "kernel BUG"`
+
+testfile=$SCRATCH_MNT/file.$seq
+# fcollapse/truncate continuously and simultaneously
+# a same file
+for ((i=1; i <= 100; i++))
+do
+ for ((i=1; i <= 1000; i++))
+ do
+ $XFS_IO_PROG -f -c 'truncate 100k' $testfile 2>> $seqres.full
+ $XFS_IO_PROG -f -c 'fcollapse 0 16k' $testfile 2>> $seqres.full
+ done &
+ for ((i=1; i <= 1000; i++))
+ do
+ $XFS_IO_PROG -f -c 'truncate 0' $testfile 2>> $seqres.full
+ done &
+done
+
+wait
+
+new_bug=`dmesg | grep -c "kernel BUG"`
+if [ $new_bug -ne $old_bug ]; then
+ echo "kernel bug detected, check dmesg for more infomation."
+fi
+
+status=0 ; exit
diff --git a/tests/generic/326.out b/tests/generic/326.out
new file mode 100644
index 0000000..90a76cc
--- /dev/null
+++ b/tests/generic/326.out
@@ -0,0 +1 @@
+QA output created by 326
diff --git a/tests/generic/group b/tests/generic/group
index 799bfd8..5ef8acb 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -151,3 +151,4 @@
323 auto aio stress
324 auto fsr quick
325 auto quick data log
+326 auto
--
1.9.3
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