From: Dave Chinner <dchinner@xxxxxxxxxx>
This test exposed a problem with mapped writes to the tail page of a
file in XFS. Hence make it a generic test so taht we can ensure that
all fielsystems handle the case correctly.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
tests/generic/029 | 123 ++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/029.out | 65 ++++++++++++++++++++++++++
tests/generic/group | 1 +
3 files changed, 189 insertions(+)
create mode 100644 tests/generic/029
create mode 100644 tests/generic/029.out
diff --git a/tests/generic/029 b/tests/generic/029
new file mode 100644
index 0000000..854794e
--- /dev/null
+++ b/tests/generic/029
@@ -0,0 +1,123 @@
+#! /bin/bash
+# FS QA Test No. generic/029
+#
+# Test mapped writes against truncate down/up to ensure we get the data
+# correctly written. This can expose data corruption bugs on filesystems where
+# the block size is smaller than the page size.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2014 Red Hat, 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 $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+
+# Modify as appropriate.
+_supported_fs generic
+_supported_os IRIX Linux
+_require_scratch
+
+testfile=$SCRATCH_MNT/testfile
+
+_scratch_mkfs > /dev/null 2>&1
+_scratch_mount
+
+# first case is just truncate down/truncate up to check that the mapped
+# write after the truncate up is correctly handled.
+$XFS_IO_PROG -t -f \
+-c "truncate 5120" `# truncate | |` \
+-c "pwrite -S 0x58 0 5120" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \
+-c "mmap -rw 0 5120" `# mmap | |` \
+-c "mwrite -S 0x5a 2048 3072" `# mwrite | ZZZZZZZZZZZZZZ|` \
+-c "truncate 2048" `# truncate dn | |` \
+-c "truncate 5120" `# truncate up | |` \
+-c "mwrite -S 0x59 2048 3072" `# mwrite | YYYYYYYYYYYYYY|` \
+-c "close" \
+$testfile | _filter_xfs_io
+
+echo "==== Pre-Remount ==="
+hexdump -C $testfile
+_scratch_remount
+echo "==== Post-Remount =="
+hexdump -C $testfile
+
+rm -f $testfile
+sync
+
+# second case is to do a mwrite between the truncate to a block on the
+# same page we are truncating within the EOF. This checks that a mapped
+# write between truncate down and truncate up a further mapped
+# write to the same page into the new space doesn't result in data being lost.
+$XFS_IO_PROG -t -f \
+-c "truncate 5120" `# truncate | |` \
+-c "pwrite -S 0x58 0 5120" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \
+-c "mmap -rw 0 5120" `# mmap | |` \
+-c "mwrite -S 0x5a 2048 3072" `# mwrite | ZZZZZZZZZZZZZZ|` \
+-c "truncate 2048" `# truncate dn | |` \
+-c "mwrite -S 0x57 1024 1024" `# mwrite | WWWWW |` \
+-c "truncate 5120" `# truncate up | |` \
+-c "mwrite -S 0x59 2048 3072" `# mwrite | YYYYYYYYYYYYYY|` \
+-c "close" \
+$testfile | _filter_xfs_io
+
+echo "==== Pre-Remount ==="
+hexdump -C $testfile
+_scratch_remount
+echo "==== Post-Remount =="
+hexdump -C $testfile
+
+# third case is the same as second case, just with non-1k aligned offsets and
+# sizes.
+$XFS_IO_PROG -t -f \
+-c "truncate 5121" `# truncate | |` \
+-c "pwrite -S 0x58 0 5121" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \
+-c "mmap -rw 0 5121" `# mmap | |` \
+-c "mwrite -S 0x5a 2047 3071" `# mwrite | ZZZZZZZZZZZZZZ|` \
+-c "truncate 2047" `# truncate dn | |` \
+-c "mwrite -S 0x57 513 1025" `# mwrite | WWWWW |` \
+-c "truncate 5121" `# truncate up | |` \
+-c "mwrite -S 0x59 2047 3071" `# mwrite | YYYYYYYYYYYYYY|` \
+-c "close" \
+$testfile | _filter_xfs_io
+
+echo "==== Pre-Remount ==="
+hexdump -C $testfile
+_scratch_remount
+echo "==== Post-Remount =="
+hexdump -C $testfile
+
+status=0
+exit
+
diff --git a/tests/generic/029.out b/tests/generic/029.out
new file mode 100644
index 0000000..457982c
--- /dev/null
+++ b/tests/generic/029.out
@@ -0,0 +1,65 @@
+QA output created by 029
+wrote 5120/5120 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+==== Pre-Remount ===
+00000000 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+00000800 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 |YYYYYYYYYYYYYYYY|
+*
+00001400
+==== Post-Remount ==
+00000000 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+00000800 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 |YYYYYYYYYYYYYYYY|
+*
+00001400
+wrote 5120/5120 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+==== Pre-Remount ===
+00000000 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+00000400 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 |WWWWWWWWWWWWWWWW|
+*
+00000800 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 |YYYYYYYYYYYYYYYY|
+*
+00001400
+==== Post-Remount ==
+00000000 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+00000400 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 |WWWWWWWWWWWWWWWW|
+*
+00000800 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 |YYYYYYYYYYYYYYYY|
+*
+00001400
+wrote 5121/5121 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+==== Pre-Remount ===
+00000000 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+00000200 58 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 |XWWWWWWWWWWWWWWW|
+00000210 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 |WWWWWWWWWWWWWWWW|
+*
+00000600 57 57 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |WWXXXXXXXXXXXXXX|
+00000610 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+000007f0 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 59 |XXXXXXXXXXXXXXXY|
+00000800 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 |YYYYYYYYYYYYYYYY|
+*
+000013f0 59 59 59 59 59 59 59 59 59 59 59 59 59 59 00 00 |YYYYYYYYYYYYYY..|
+00001400 00 |.|
+00001401
+==== Post-Remount ==
+00000000 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+00000200 58 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 |XWWWWWWWWWWWWWWW|
+00000210 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 |WWWWWWWWWWWWWWWW|
+*
+00000600 57 57 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |WWXXXXXXXXXXXXXX|
+00000610 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 |XXXXXXXXXXXXXXXX|
+*
+000007f0 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 59 |XXXXXXXXXXXXXXXY|
+00000800 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 |YYYYYYYYYYYYYYYY|
+*
+000013f0 59 59 59 59 59 59 59 59 59 59 59 59 59 59 00 00 |YYYYYYYYYYYYYY..|
+00001400 00 |.|
+00001401
diff --git a/tests/generic/group b/tests/generic/group
index bdcfd9d..18c94de 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -31,6 +31,7 @@
026 acl quick auto
027 auto enospc
028 auto quick
+029 auto quick rw
053 acl repair auto quick
062 attr udf auto quick
068 other auto freeze dangerous stress
--
2.0.0
--
To unsubscribe from this list: send the line "unsubscribe fstests" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
