Inspired by syncfs bug of overlayfs which does not sync dirtyinodes in
underlying filesystem.
Run syncfs and shutdown filesystem(or underlying filesystem of overlayfs)
to check syncfs result.
Signed-off-by: Chengguang Xu <cgxu519@xxxxxxxxxx>
---
Changes since v1:
Use fs shutdown and fssum to check syncfs result instead of
checking delalloc state of extents.
tests/generic/470 | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/470.out | 2 ++
tests/generic/group | 1 +
3 files changed, 91 insertions(+)
create mode 100755 tests/generic/470
create mode 100644 tests/generic/470.out
diff --git a/tests/generic/470 b/tests/generic/470
new file mode 100755
index 0000000..b488747
--- /dev/null
+++ b/tests/generic/470
@@ -0,0 +1,88 @@
+#! /bin/bash
+# FS QA Test 470
+#
+# Inspired by syncfs bug of overlayfs which does not sync dirty inodes in
+# underlying filesystem.
+#
+# Run syncfs and shutdown filesystem(or underlying filesystem of overlayfs)
+# to check syncfs result.
+#
+# Test will be skipped if filesystem(or underlying filesystem of overlayfs)
+# does not support shutdown.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017 Chengguang Xu <cgxu519@xxxxxxxxxx>
+# 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
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+
+_supported_fs generic
+_supported_os Linux
+_require_test
+_require_fssum
+_require_scratch
+_require_scratch_shutdown
+_require_xfs_io_command "syncfs"
+
+
+FCNT=1000
+
+_scratch_mkfs >/dev/null 2>&1
+_scratch_mount
+
+# In order to mitigate interference of write-back,
+# create many files for test.
+for i in `seq 1 $FCNT`; do
+ $XFS_IO_PROG -f -c "pwrite 1K 1M" \
+ $SCRATCH_MNT/$i >/dev/null 2>&1
+done
+
+$FSSUM_PROG -ugomAcdES -f -w $TEST_DIR/before_test $SCRATCH_MNT
+$XFS_IO_PROG -c "syncfs" $SCRATCH_MNT/${FCNT} >/dev/null 2>&1
+_scratch_shutdown
+_scratch_cycle_mount
+$FSSUM_PROG -ugomAcdES -f -w $TEST_DIR/after_test $SCRATCH_MNT
+diff $TEST_DIR/before_test $TEST_DIR/after_test
+if [ $? -eq 0 ]; then
+ status=0
+fi
+
+echo "Silence is golden"
+exit
diff --git a/tests/generic/470.out b/tests/generic/470.out
new file mode 100644
index 0000000..79fb532
--- /dev/null
+++ b/tests/generic/470.out
@@ -0,0 +1,2 @@
+QA output created by 470
+Silence is golden
diff --git a/tests/generic/group b/tests/generic/group
index 6c3bb03..493a44c 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -472,3 +472,4 @@
467 auto quick exportfs
468 shutdown auto quick metadata
469 auto quick
+470 auto quick shutdown sync
--
1.8.3.1
--
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