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@xxxxxx> Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx> --- README | 2 + common/dmlogwrites | 94 ++++++++++++++++++++++++++++++++++++++++++++ doc/requirement-checking.txt | 20 ++++++++++ 3 files changed, 116 insertions(+) create mode 100644 common/dmlogwrites diff --git a/README b/README index 9456fa7..4963d28 100644 --- a/README +++ b/README @@ -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 diff --git a/common/dmlogwrites b/common/dmlogwrites new file mode 100644 index 0000000..592b047 --- /dev/null +++ b/common/dmlogwrites @@ -0,0 +1,94 @@ +##/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 + +echo $MOUNT_OPTIONS | grep -q dax +if [ $? -eq 0 ]; then + _notrun "Cannot run tests with DAX on dmerror devices" +fi + +_require_log_writes() +{ + [ -z "$LOGWRITES_DEV" -o ! -b "$LOGWRITES_DEV" ] && \ + _notrun "This test requires a valid \$LOGWRITES_DEV" + + _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 +} + +# _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 +} diff --git a/doc/requirement-checking.txt b/doc/requirement-checking.txt index 95d10e6..4e01b1f 100644 --- a/doc/requirement-checking.txt +++ b/doc/requirement-checking.txt @@ -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. -- 2.7.4
