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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Red Hat Inc. All Rights Reserved.
#
# FS QA Test generic/561
#
# Dedup & random I/O race test, do multi-threads fsstress and dedupe on
# same directory/files
#
. ./common/preamble
_begin_fstest auto stress dedupe
# Override the default cleanup function.
_cleanup()
{
cd /
rm -f $tmp.*
end_test
}
# Import common functions.
. ./common/filter
. ./common/reflink
# real QA test starts here
_supported_fs generic
_require_scratch_duperemove
_require_command "$KILLALL_PROG" killall
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1
function end_test()
{
local f=1
# stop duperemove running
if [ -e $dupe_run ]; then
rm -f $dupe_run
$KILLALL_PROG -q $DUPEREMOVE_PROG > /dev/null 2>&1
wait $dedup_pids
fi
# Make sure all fsstress get killed
while [ $f -ne 0 ]; do
$KILLALL_PROG -q $FSSTRESS_PROG > /dev/null 2>&1
sleep 1
f=`ps -eLf | grep $FSSTRESS_PROG | grep -v "grep" | wc -l`
done
}
sleep_time=$((50 * TIME_FACTOR))
# Start fsstress
testdir="$SCRATCH_MNT/dir"
mkdir $testdir
fsstress_opts="-r -n 1000 -p $((5 * LOAD_FACTOR))"
$FSSTRESS_PROG $fsstress_opts -d $testdir -l 0 >> $seqres.full 2>&1 &
dedup_pids=""
dupe_run=$TEST_DIR/${seq}-running
# Start several dedupe processes on same directory
touch $dupe_run
for ((i = 0; i < $((2 * LOAD_FACTOR)); i++)); do
while [ -e $dupe_run ]; do
# Run cmd in a subshell so that the golden output does not
# capture assertions that trigger when killall shoots down
# dupremove processes in an arbitrary order, which leaves the
# memory in an inconsistent state long enough for the assert
# to trip.
cmd="$DUPEREMOVE_PROG -dr --dedupe-options=same $testdir"
bash -c "$cmd" >> $seqres.full 2>&1
done 2>&1 | sed -e '/Terminated/d' &
dedup_pids="$! $dedup_pids"
done
# End the test after $sleep_time seconds
sleep $sleep_time
end_test
# umount and mount again, verify pagecache contents don't mutate and a fresh
# read from the disk also doesn't show mutations.
find $testdir -type f -exec md5sum {} \; > ${tmp}.md5sum
_scratch_cycle_mount
md5sum -c --quiet ${tmp}.md5sum
echo "Silence is golden"
status=0
exit
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