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apfstests/common/dmlogwrites
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Amir Goldstein 520cddd8d0 fstests: add support for working with dm-log-writes target
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>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
2017-09-09 18:15:53 +08:00

91 lines
2.4 KiB
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##/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
}