[PATCH] generic/391: check inode metadata on f{data}sync after power-cut

Jaegeuk Kim
2016-11-17T03:28:53Z

This patch adds tests/generic/391 to test fsync and fdatasync with power-cuts.

The rule to check is:
1) fsync should guarantee all the inode metadata after power-cut,
2) fdatasync should guarantee i_size and i_blocks at least after power-cut.

Suggested-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
tests/generic/391 | 125 ++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/391.out | 11 +++++
tests/generic/group | 1 +
3 files changed, 137 insertions(+)
create mode 100644 tests/generic/391
create mode 100644 tests/generic/391.out

diff --git a/tests/generic/391 b/tests/generic/391
new file mode 100644
index 0000000..17c3fd3
--- /dev/null
+++ b/tests/generic/391
@@ -0,0 +1,125 @@
+#! /bin/bash
+# FS QA Test 391
+#
+# Test inode's metadata after fsync or fdatasync calls.
+# In the case of fsync, filesystem should recover all the inode metadata, while
+# recovering i_blocks and i_size at least for fdatasync.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016 Jaegeuk Kim. 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 "rm -f $tmp.*; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/punch
+
+# real QA test starts here
+_supported_fs generic
+_supported_os Linux
+
+rm -f $seqres.full
+_require_scratch
+_require_scratch_shutdown
+_require_xfs_io_command "fpunch"
+
+_scratch_mkfs >/dev/null 2>&1
+_scratch_mount
+
+testfile=$SCRATCH_MNT/testfile
+
+# check inode metadata after shutdown
+_check_inode_metadata()
+{
+ src/godown $SCRATCH_MNT >> $seqres.full
+ $XFS_IO_PROG -r -c "stat -v" $1 >$tmp.before
+ _scratch_cycle_mount
+ $XFS_IO_PROG -r -c "stat -v" $1 >$tmp.after
+ diff $tmp.before $tmp.after >>$tmp.diff
+
+ if [ "$2" = "fdatasync" ]; then
+ cat $tmp.diff | grep stat.size
+ cat $tmp.diff | grep stat.blocks
+ else
+ cat $tmp.diff
+ fi
+ cat $tmp.before >> $seqres.full
+ cat $tmp.after >> $seqres.full
+}
+
+# append XX KB with f{data}sync, followed by power-cut
+_test_i_size()
+{
+ echo "==== i_size $2 test with $1 ===="
+ $XFS_IO_PROG -f -c "pwrite 0 4M" \
+ -c "fsync" \
+ -c "pwrite 4M $2" \
+ -c "$1" \
+ $testfile >/dev/null
+ _check_inode_metadata $testfile $1
+}
+
+# update times with f{data}sync, followed by power-cut
+_test_i_time()
+{
+ echo "==== i_time test with $1 ===="
+ $XFS_IO_PROG -f -c "pwrite 0 4M" \
+ -c "fsync" \
+ $testfile >/dev/null
+ sleep 1
+ touch $testfile
+ $XFS_IO_PROG -c "$1" \
+ $testfile >/dev/null
+ _check_inode_metadata $testfile $1
+}
+
+# punch XX KB with f{data}sync, followed by power-cut
+_test_punch()
+{
+ echo "==== fpunch $2 test with $1 ===="
+ $XFS_IO_PROG -f -c "pwrite 0 4202496" \
+ -c "fsync" \
+ -c "fpunch 4194304 $2"\
+ -c "$1" \
+ $testfile >/dev/null
+
+ _check_inode_metadata $testfile $1
+}
+
+for i in fsync fdatasync
+do
+ _test_i_size $i 1024
+ _test_i_size $i 4096
+ _test_i_time $i
+ _test_punch $i 1024
+ _test_punch $i 4096
+done
+
+rm -f $tmp.*
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/391.out b/tests/generic/391.out
new file mode 100644
index 0000000..7c66776
--- /dev/null
+++ b/tests/generic/391.out
@@ -0,0 +1,11 @@
+QA output created by 391
+==== i_size 1024 test with fsync ====
+==== i_size 4096 test with fsync ====
+==== i_time test with fsync ====
+==== fpunch 1024 test with fsync ====
+==== fpunch 4096 test with fsync ====
+==== i_size 1024 test with fdatasync ====
+==== i_size 4096 test with fdatasync ====
+==== i_time test with fdatasync ====
+==== fpunch 1024 test with fdatasync ====
+==== fpunch 4096 test with fdatasync ====
diff --git a/tests/generic/group b/tests/generic/group
index 08007d7..9de3415 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -392,3 +392,4 @@
387 auto clone
388 auto log metadata
389 auto quick acl
+391 auto quick metadata
--
2.8.3