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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2022 Oracle. All Rights Reserved.
#
# FS QA Test No. 798
#
# Make sure that xfs_scrub dry run, preen, and repair modes only modify the
# things that they're allowed to touch.
#
. ./common/preamble
_begin_fstest auto quick online_repair
# Import common functions.
. ./common/fuzzy
. ./common/filter
# real QA test starts here
# Modify as appropriate.
_supported_fs xfs
_require_scratch_nocheck
_require_scrub
_require_xfs_db_command "fuzz"
_require_xfs_io_command "repair"
# Make sure we support repair?
output="$($XFS_IO_PROG -x -c 'repair -R probe' $SCRATCH_MNT 2>&1)"
test -z "$output" && _notrun 'kernel does not support repair'
# Make sure xfs_scrub is new enough to support -p(reen)
$XFS_SCRUB_PROG -p 2>&1 | grep -q 'invalid option' && \
_notrun 'scrub does not support -p'
_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
. $tmp.mkfs
test $agcount -ge 3 || _notrun 'filesystem must have at least 3 AGs'
AWK_PROG='
{
if ($1 ~ /Optimized:/)
optimized++;
else if ($1 ~ /Repaired:/)
repaired++;
else if ($1 ~ /Corruption:/)
corruption++;
}
END {
printf("corruption: %u optimized: %u repaired: %u\n",
corruption, optimized, repaired);
}
'
test_scrub() {
local mode="$1"
local scrub_arg="$2"
local db_args=(-x)
# Fuzz secondary superblocks because this won't cause mount failures
if [[ $mode =~ c ]]; then
db_args+=(-c 'sb 1' -c 'fuzz -d dblocks add')
fi
if [[ $mode =~ o ]]; then
db_args+=(-c 'sb 2' -c 'fuzz -d fname random')
fi
echo "testing mode? $mode scrub_arg $scrub_arg"
echo "db_args:${db_args[@]}:scrub_arg:$scrub_arg:$mode:" >> $seqres.full
echo "----------------" >> $seqres.full
_scratch_mkfs >> $seqres.full
# Make sure there's nothing left to optimize, at least according to
# xfs_scrub. This clears the way for us to make targeted changes to
# the filesystem.
_scratch_mount
_scratch_scrub $scrub_arg >> /dev/null
_scratch_unmount
# Modify the filesystem as needed to trip up xfs_scrub
_scratch_xfs_db "${db_args[@]}" >> $seqres.full
# See how many optimizations, repairs, and corruptions it'll report
_scratch_mount
_scratch_scrub $scrub_arg 2>&1 | awk "$AWK_PROG"
test "${PIPESTATUS[0]}" -eq 0 || echo "xfs_scrub returned ${PIPESTATUS[0]}?"
echo
_scratch_unmount
}
test_scrub 'o' -n # dry run with possible optimizations
test_scrub 'o' -p # preen
test_scrub 'o' # repair
test_scrub 'co' -n # dry run with corruptions and optimizations
test_scrub 'co' -p # preen
test_scrub 'co' # repair
test_scrub 'c' -n # dry run with corruptions
test_scrub 'c' -p # preen
test_scrub 'c' # repair
# success, all done
status=0
exit
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