@@ -91,6 +91,8 @@ Preparing system for tests:
- set TEST_XFS_SCRUB=1 to have _check_xfs_filesystem run
xfs_scrub -vd to scrub the filesystem metadata online before
unmounting to run the offline check.
+ - setenv LOGWRITES_DEV to a block device to use for power fail
+ testing.
- or add a case to the switch in common/config assigning
these variables based on the hostname of your test
new file mode 100644
@@ -0,0 +1,90 @@
+##/bin/bash
+#
+# Copyright (c) 2015 Facebook, 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
+#
+#
+# common functions for setting up and tearing down a dm log-writes device
+
+_require_log_writes()
+{
+ [ -z "$LOGWRITES_DEV" -o ! -b "$LOGWRITES_DEV" ] && \
+ _notrun "This test requires a valid \$LOGWRITES_DEV"
+
+ _exclude_scratch_mount_option dax
+ _require_dm_target log-writes
+ _require_test_program "log-writes/replay-log"
+}
+
+_log_writes_init()
+{
+ local BLK_DEV_SIZE=`blockdev --getsz $SCRATCH_DEV`
+ LOGWRITES_NAME=logwrites-test
+ LOGWRITES_DMDEV=/dev/mapper/$LOGWRITES_NAME
+ LOGWRITES_TABLE="0 $BLK_DEV_SIZE log-writes $SCRATCH_DEV $LOGWRITES_DEV"
+ $DMSETUP_PROG create $LOGWRITES_NAME --table "$LOGWRITES_TABLE" || \
+ _fail "failed to create log-writes device"
+ $DMSETUP_PROG mknodes > /dev/null 2>&1
+}
+
+_log_writes_mark()
+{
+ [ $# -ne 1 ] && _fail "_log_writes_mark takes one argument"
+ $DMSETUP_PROG message $LOGWRITES_NAME 0 mark $1
+}
+
+_log_writes_mkfs()
+{
+ _scratch_options mkfs
+ _mkfs_dev $SCRATCH_OPTIONS $LOGWRITES_DMDEV
+ _log_writes_mark mkfs
+}
+
+_log_writes_mount()
+{
+ _scratch_options mount
+ $MOUNT_PROG -t $FSTYP `_common_dev_mount_options $*` $SCRATCH_OPTIONS \
+ $LOGWRITES_DMDEV $SCRATCH_MNT
+}
+
+_log_writes_unmount()
+{
+ $UMOUNT_PROG $SCRATCH_MNT
+}
+
+# _log_writes_replay_log <mark>
+#
+# This replays the log contained on $LOGWRITES_DEV onto $SCRATCH_DEV upto the
+# mark passed in.
+_log_writes_replay_log()
+{
+ _mark=$1
+
+ $here/src/log-writes/replay-log --log $LOGWRITES_DEV --replay $SCRATCH_DEV \
+ --end-mark $_mark >> $seqres.full 2>&1
+ [ $? -ne 0 ] && _fail "replay failed"
+}
+
+_log_writes_remove()
+{
+ $DMSETUP_PROG remove $LOGWRITES_NAME > /dev/null 2>&1
+ $DMSETUP_PROG mknodes > /dev/null 2>&1
+}
+
+_log_writes_cleanup()
+{
+ $UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
+ _log_writes_remove
+}
@@ -21,6 +21,10 @@ they have. This is done with _require_<xxx> macros, which may take parameters.
_require_statx
+ (4) Device mapper requirement.
+
+ _require_dm_target
+ _require_log_writes
====================
GENERAL REQUIREMENTS
@@ -102,3 +106,19 @@ _require_statx
The test requires the use of the statx() system call and will be skipped
if it isn't available in the kernel.
+
+
+==========================
+DEVICE MAPPER REQUIREMENTS
+==========================
+
+_require_dm_target <name>
+
+ The test requires the use of the device mapper target and will be skipped
+ if it isn't available in the kernel.
+
+_require_log_writes
+
+ The test requires the use of the device mapper target log-writes.
+ The test also requires the test program log-writes/replay-log is built
+ and will be skipped if either isn't available.
Cherry-picked the relevant common bits from commit 70d41e17164b in Josef Bacik's fstests tree (https://github.com/josefbacik/fstests). Quoting from Josef's commit message: This patch adds the supporting code for using the dm-log-writes target. The dmlogwrites code is similar to the dmflakey code, it just gives us functions to build and tear down a dm-log-writes target. We add a new LOGWRITES_DEV variable to take in the device we will use as the log and add checks for that. [Amir:] - Removed unneeded _test_falloc_support - Moved _require_log_writes to dmlogwrites - Document _require_log_writes - Address review comments by Eryu Guan Cc: Josef Bacik <jbacik@fb.com> Signed-off-by: Amir Goldstein <amir73il@gmail.com> --- README | 2 + common/dmlogwrites | 90 ++++++++++++++++++++++++++++++++++++++++++++ doc/requirement-checking.txt | 20 ++++++++++ 3 files changed, 112 insertions(+) create mode 100644 common/dmlogwrites