#! /bin/bash
# SPDX-License-Identifier: GPL-2.0

#
# FSQA Test No. 300
#
# AIO/DIO stress test
# Run random AIO/DIO activity and fallocate/punch_hole simultaneously
# Test will operate on huge sparsed file so ENOSPC is expected.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
fio_config=$tmp.fio
fio_out=$tmp.fio.out
status=1	# failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15

_cleanup()
{
	cd /
	rm -f $tmp.*
}

# get standard environment, filters and checks
. ./common/rc
. ./common/filter

# real QA test starts here
_supported_fs generic
_require_scratch
_require_odirect
_require_aio
_require_block_device $SCRATCH_DEV

# xfs_io is not required for this test, but it's the best way to verify
# the test system supports fallocate() for allocation and hole punching
_require_xfs_io_command "falloc"
_require_xfs_io_command "fpunch"

rm -f $seqres.full

NUM_JOBS=$((4*LOAD_FACTOR))
BLK_DEV_SIZE=`blockdev --getsz $SCRATCH_DEV`
if [ $((BLK_DEV_SIZE)) -gt 1048576 ]; then
	BLK_DEV_SIZE=1048576
fi
FS_SIZE=$((BLK_DEV_SIZE * 512))

cat >$fio_config <<EOF
###########
# $seq test fio activity
# Run DIO, fallocate and punch_hole threads on a single in parallel
#
# If race exist old dio request may rewrite punched block after it was
# allocated to another file, we will catch that by verifying blocks content
#
[global]
directory=${SCRATCH_MNT}
filesize=${FS_SIZE}
size=999G
continue_on_error=write
ignore_error=,ENOSPC
error_dump=0

create_on_open=1
fallocate=none
exitall=1

## Perform direct aio, to files which may be truncated
## by external task
[direct_aio_raicer]
ioengine=libaio
iodepth=128*${LOAD_FACTOR}
bs=128k
direct=1
numjobs=${NUM_JOBS}
rw=randwrite
runtime=100*${TIME_FACTOR}
time_based
filename=racer

# Run falloc and punch_hole threads in parallel
# After activity file will be highly fragmented
[falloc_raicer]
ioengine=falloc
runtime=100*${TIME_FACTOR}
iodepth=1
bssplit=128k/80:512k/10:32k/10
rw=randwrite
numjobs=1
filename=racer

[punch_hole_raicer]
ioengine=falloc
runtime=100*${TIME_FACTOR}
bs=4k
time_based=10
rw=randtrim
numjobs=2
filename=racer
time_based

# Verifier thread continiously write to newly allcated blocks
# and veryfy written content
[aio-dio-verifier]
ioengine=libaio
iodepth=128*${LOAD_FACTOR}
numjobs=1
verify=crc32c-intel
verify_fatal=1
verify_dump=1
verify_backlog=1024
verify_async=4
verifysort=1
direct=1
bs=4k
rw=randwrite
filename=aio-dio-verifier
EOF

_require_fio $fio_config

_scratch_mkfs_sized $FS_SIZE >> $seqres.full 2>&1
_scratch_mount

echo ""
echo "Run fio with random aio-dio pattern"
echo ""
cat $fio_config >>  $seqres.full
$FIO_PROG $fio_config --output=$fio_out
cat $fio_out >> $seqres.full

status=0
exit