##/bin/bash
-#
+# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2013 Fusion IO, 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 dmflakey device
FLAKEY_ALLOW_WRITES=0
FLAKEY_DROP_WRITES=1
+FLAKEY_ERROR_WRITES=2
_init_flakey()
{
+ # Scratch device
local BLK_DEV_SIZE=`blockdev --getsz $SCRATCH_DEV`
FLAKEY_DEV=/dev/mapper/flakey-test
FLAKEY_TABLE="0 $BLK_DEV_SIZE flakey $SCRATCH_DEV 0 180 0"
FLAKEY_TABLE_DROP="0 $BLK_DEV_SIZE flakey $SCRATCH_DEV 0 0 180 1 drop_writes"
- $DMSETUP_PROG create flakey-test --table "$FLAKEY_TABLE" || \
+ FLAKEY_TABLE_ERROR="0 $BLK_DEV_SIZE flakey $SCRATCH_DEV 0 0 180 1 error_writes"
+ _dmsetup_create flakey-test --table "$FLAKEY_TABLE" || \
_fatal "failed to create flakey device"
- $DMSETUP_PROG mknodes > /dev/null 2>&1
+
+ # Realtime device
+ if [ -n "$SCRATCH_RTDEV" ]; then
+ if [ -z "$NON_FLAKEY_RTDEV" ]; then
+ # Set up the device switch
+ local backing_dev="$SCRATCH_RTDEV"
+ export NON_FLAKEY_RTDEV="$SCRATCH_RTDEV"
+ SCRATCH_RTDEV=/dev/mapper/flakey-rttest
+ else
+ # Already set up; recreate tables
+ local backing_dev="$NON_FLAKEY_RTDEV"
+ fi
+ local BLK_DEV_SIZE=`blockdev --getsz $backing_dev`
+ FLAKEY_RTTABLE="0 $BLK_DEV_SIZE flakey $backing_dev 0 180 0"
+ FLAKEY_RTTABLE_DROP="0 $BLK_DEV_SIZE flakey $backing_dev 0 0 180 1 drop_writes"
+ FLAKEY_RTTABLE_ERROR="0 $BLK_DEV_SIZE flakey $backing_dev 0 0 180 1 error_writes"
+ _dmsetup_create flakey-rttest --table "$FLAKEY_RTTABLE" || \
+ _fatal "failed to create flakey rt device"
+ fi
+
+ # External log device
+ if [ -n "$SCRATCH_LOGDEV" ]; then
+ if [ -z "$NON_FLAKEY_LOGDEV" ]; then
+ # Set up the device switch
+ local backing_dev="$SCRATCH_LOGDEV"
+ export NON_FLAKEY_LOGDEV="$SCRATCH_LOGDEV"
+ SCRATCH_LOGDEV=/dev/mapper/flakey-logtest
+ else
+ # Already set up; recreate tables
+ local backing_dev="$NON_FLAKEY_LOGDEV"
+ fi
+ local BLK_DEV_SIZE=`blockdev --getsz $backing_dev`
+ FLAKEY_LOGTABLE="0 $BLK_DEV_SIZE flakey $backing_dev 0 180 0"
+ FLAKEY_LOGTABLE_DROP="0 $BLK_DEV_SIZE flakey $backing_dev 0 0 180 1 drop_writes"
+ FLAKEY_LOGTABLE_ERROR="0 $BLK_DEV_SIZE flakey $backing_dev 0 0 180 1 error_writes"
+ _dmsetup_create flakey-logtest --table "$FLAKEY_LOGTABLE" || \
+ _fatal "failed to create flakey log device"
+ fi
}
_mount_flakey()
{
- mount -t $FSTYP $MOUNT_OPTIONS $FLAKEY_DEV $SCRATCH_MNT
+ _scratch_options mount
+
+ mount -t $FSTYP $SCRATCH_OPTIONS $MOUNT_OPTIONS $FLAKEY_DEV $SCRATCH_MNT
}
_unmount_flakey()
{
# If dmsetup load fails then we need to make sure to do resume here
# otherwise the umount will hang
+ test -n "$NON_FLAKEY_LOGDEV" && $DMSETUP_PROG resume flakey-logtest &> /dev/null
+ test -n "$NON_FLAKEY_RTDEV" && $DMSETUP_PROG resume flakey-rttest &> /dev/null
$DMSETUP_PROG resume flakey-test > /dev/null 2>&1
+
$UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
- $DMSETUP_PROG remove flakey-test > /dev/null 2>&1
- $DMSETUP_PROG mknodes > /dev/null 2>&1
+
+ _dmsetup_remove flakey-test
+ test -n "$NON_FLAKEY_LOGDEV" && _dmsetup_remove flakey-logtest
+ test -n "$NON_FLAKEY_RTDEV" && _dmsetup_remove flakey-rttest
+
+ if [ -n "$NON_FLAKEY_LOGDEV" ]; then
+ SCRATCH_LOGDEV="$NON_FLAKEY_LOGDEV"
+ unset NON_FLAKEY_LOGDEV
+ fi
+
+ if [ -n "$NON_FLAKEY_RTDEV" ]; then
+ SCRATCH_RTDEV="$NON_FLAKEY_RTDEV"
+ unset NON_FLAKEY_RTDEV
+ fi
}
# _load_flakey_table <table> [lockfs]
# table, so it simulates power failure.
_load_flakey_table()
{
-
- table="$FLAKEY_TABLE"
- [ $1 -eq $FLAKEY_DROP_WRITES ] && table="$FLAKEY_TABLE_DROP"
+ case "$1" in
+ "$FLAKEY_DROP_WRITES")
+ table="$FLAKEY_TABLE_DROP"
+ logtable="$FLAKEY_LOGTABLE_DROP"
+ rttable="$FLAKEY_RTTABLE_DROP"
+ ;;
+ "$FLAKEY_ERROR_WRITES")
+ table="$FLAKEY_TABLE_ERROR"
+ logtable="$FLAKEY_LOGTABLE_ERROR"
+ rttable="$FLAKEY_RTTABLE_ERROR"
+ ;;
+ *)
+ table="$FLAKEY_TABLE"
+ logtable="$FLAKEY_LOGTABLE"
+ rttable="$FLAKEY_RTTABLE"
+ ;;
+ esac
suspend_opt="--nolockfs"
[ $# -gt 1 ] && [ $2 -eq 1 ] && suspend_opt=""
+ # Suspend the scratch device before the log and realtime devices so
+ # that the kernel can freeze and flush the filesystem if the caller
+ # wanted a freeze.
$DMSETUP_PROG suspend $suspend_opt flakey-test
[ $? -ne 0 ] && _fatal "failed to suspend flakey-test"
- $DMSETUP_PROG load flakey-test --table "$table"
+ if [ -n "$NON_FLAKEY_RTDEV" ]; then
+ $DMSETUP_PROG suspend $suspend_opt flakey-rttest
+ [ $? -ne 0 ] && _fatal "failed to suspend flakey-rttest"
+ fi
+
+ if [ -n "$NON_FLAKEY_LOGDEV" ]; then
+ $DMSETUP_PROG suspend $suspend_opt flakey-logtest
+ [ $? -ne 0 ] && _fatal "failed to suspend flakey-logtest"
+ fi
+
+ # There may be multiple dm targets in the table, and these dm targets
+ # will be joined by the newline ("\n"). Option --table can not cope with
+ # the multiple-targets case, so get them by reading from standard input.
+ echo -e "$table" | $DMSETUP_PROG load flakey-test
[ $? -ne 0 ] && _fatal "failed to load table into flakey-test"
+ if [ -n "$NON_FLAKEY_RTDEV" ]; then
+ echo -e "$rttable" | $DMSETUP_PROG load flakey-rttest
+ [ $? -ne 0 ] && _fatal "failed to load table into flakey-rttest"
+ fi
+
+ if [ -n "$NON_FLAKEY_LOGDEV" ]; then
+ echo -e "$logtable" | $DMSETUP_PROG load flakey-logtest
+ [ $? -ne 0 ] && _fatal "failed to load table into flakey-logtest"
+ fi
+
+ # Resume devices in the opposite order that we suspended them.
+ if [ -n "$NON_FLAKEY_LOGDEV" ]; then
+ $DMSETUP_PROG resume flakey-logtest
+ [ $? -ne 0 ] && _fatal "failed to resume flakey-logtest"
+ fi
+
+ if [ -n "$NON_FLAKEY_RTDEV" ]; then
+ $DMSETUP_PROG resume flakey-rttest
+ [ $? -ne 0 ] && _fatal "failed to resume flakey-rttest"
+ fi
+
$DMSETUP_PROG resume flakey-test
- [ $? -ne 0 ] && _fatal "failed to resumeflakey-test"
+ [ $? -ne 0 ] && _fatal "failed to resume flakey-test"
+}
+
+# Silently drop all writes and unmount/remount to simulate a crash/power
+# failure.
+_flakey_drop_and_remount()
+{
+ _load_flakey_table $FLAKEY_DROP_WRITES
+ _unmount_flakey
+
+ if [ "x$1" = "xyes" ]; then
+ _check_scratch_fs $FLAKEY_DEV
+ fi
+
+ _load_flakey_table $FLAKEY_ALLOW_WRITES
+ _mount_flakey
+}
+
+_require_flakey_with_error_writes()
+{
+ local SIZE
+ local TABLE
+ local NAME=flakey-test
+
+ _require_dm_target flakey
+
+ SIZE=`blockdev --getsz $SCRATCH_DEV`
+ TABLE="0 $SIZE flakey $SCRATCH_DEV 0 0 180 1 error_writes"
+
+ _dmsetup_create $NAME --table "$TABLE" || \
+ _notrun "This test requires error_writes feature in dm-flakey"
+
+ _cleanup_flakey
}
projects / xfstests-dev.git / blobdiff