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|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2024 Oracle, Inc. All Rights Reserved.
#
# FS QA Test No. 605
#
# Test metadump/mdrestore's ability to dump a dirty log and restore it
# correctly.
#
. ./common/preamble
_begin_fstest auto quick metadump log logprint punch
# Override the default cleanup function.
_cleanup()
{
cd /
rm -r -f $tmp.*
_scratch_unmount > /dev/null 2>&1
[[ -n $logdev && $logdev != "none" && $logdev != $SCRATCH_LOGDEV ]] && \
_destroy_loop_device $logdev
[[ -n $datadev ]] && _destroy_loop_device $datadev
rm -r -f $metadump_file $TEST_DIR/data-image \
$TEST_DIR/log-image
}
# Import common functions.
. ./common/dmflakey
. ./common/inject
# real QA test starts here
_supported_fs xfs
_require_scratch
_require_test
_require_loop
_require_xfs_debug
_require_xfs_io_error_injection log_item_pin
_require_dm_target flakey
_require_xfs_io_command "pwrite"
_require_test_program "punch-alternating"
metadump_file=${TEST_DIR}/${seq}.md
testfile=${SCRATCH_MNT}/testfile
echo "Format filesystem on scratch device"
_scratch_mkfs >> $seqres.full 2>&1
max_md_version=1
_scratch_metadump_v2_supported && max_md_version=2
external_log=0
if [[ $USE_EXTERNAL = yes && -n "$SCRATCH_LOGDEV" ]]; then
external_log=1
fi
if [[ $max_md_version == 1 && $external_log == 1 ]]; then
_notrun "metadump v1 does not support external log device"
fi
verify_metadump_v1()
{
local version=""
if [[ $max_md_version == 2 ]]; then
version="-v 1"
fi
_scratch_xfs_metadump $metadump_file -a -o $version
SCRATCH_DEV=$TEST_DIR/data-image _scratch_xfs_mdrestore $metadump_file
datadev=$(_create_loop_device $TEST_DIR/data-image)
SCRATCH_DEV=$datadev _scratch_mount
SCRATCH_DEV=$datadev _check_scratch_fs
SCRATCH_DEV=$datadev _scratch_unmount
_destroy_loop_device $datadev
datadev=""
rm -f $TEST_DIR/data-image
}
verify_metadump_v2()
{
local version="-v 2"
_scratch_xfs_metadump $metadump_file -a -o $version
# Metadump v2 files can contain contents dumped from an external log
# device. Use a temporary file to hold the log device contents restored
# from such a metadump file.
slogdev=""
if [[ -n $SCRATCH_LOGDEV ]]; then
slogdev=$TEST_DIR/log-image
fi
SCRATCH_DEV=$TEST_DIR/data-image SCRATCH_LOGDEV=$slogdev \
_scratch_xfs_mdrestore $metadump_file
datadev=$(_create_loop_device $TEST_DIR/data-image)
logdev=""
if [[ -s $slogdev ]]; then
logdev=$(_create_loop_device $slogdev)
fi
SCRATCH_DEV=$datadev SCRATCH_LOGDEV=$logdev _scratch_mount
SCRATCH_DEV=$datadev SCRATCH_LOGDEV=$logdev _check_scratch_fs
SCRATCH_DEV=$datadev SCRATCH_LOGDEV=$logdev _scratch_unmount
if [[ -s $logdev ]]; then
_destroy_loop_device $logdev
logdev=""
rm -f $slogdev
fi
_destroy_loop_device $datadev
datadev=""
rm -f $TEST_DIR/data-image
}
echo "Initialize and mount filesystem on flakey device"
_init_flakey
_load_flakey_table $FLAKEY_ALLOW_WRITES
_mount_flakey
echo "Create test file"
$XFS_IO_PROG -s -f -c "pwrite 0 5M" $testfile >> $seqres.full
echo "Punch alternative blocks of test file"
$here/src/punch-alternating $testfile
echo "Mount cycle the filesystem on flakey device"
_unmount_flakey
_mount_flakey
device=$(readlink -f $FLAKEY_DEV)
device=$(_short_dev $device)
echo "Pin log items in the AIL"
echo 1 > /sys/fs/xfs/${device}/errortag/log_item_pin
echo "Create two checkpoint transactions on ondisk log"
for ct in $(seq 1 2); do
offset=$($XFS_IO_PROG -c 'fiemap' $testfile | tac | grep -v hole | \
head -n 1 | awk -F '[\\[.]' '{ print $2 * 512; }')
$XFS_IO_PROG -c "truncate $offset" -c fsync $testfile
done
echo "Drop writes to filesystem from here onwards"
_load_flakey_table $FLAKEY_DROP_WRITES
echo "Unpin log items in AIL"
echo 0 > /sys/fs/xfs/${device}/errortag/log_item_pin
echo "Unmount filesystem on flakey device"
_unmount_flakey
echo "Clean up flakey device"
_cleanup_flakey
echo -n "Filesystem has a "
_print_logstate
echo "Create metadump file, restore it and check restored fs"
if [[ $external_log == 0 ]]; then
verify_metadump_v1 $max_md_version
fi
if [[ $max_md_version == 2 ]]; then
verify_metadump_v2
fi
# Mount the fs to replay the contents from the dirty log.
_scratch_mount
# success, all done
status=0
exit
|
