#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 NETGEAR, Inc.  All Rights Reserved.
#
# FS QA Test No. btrfs/152
#
# Test that incremental send/receive operations don't corrupt metadata when
# qgroups are enabled.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"

tmp=/tmp/$$
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 btrfs
_require_scratch

rm -f $seqres.full

_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount

# Enable quotas
$BTRFS_UTIL_PROG quota enable $SCRATCH_MNT

# Create 2 source and 4 destination subvolumes
for subvol in subvol1 subvol2 recv1_1 recv1_2 recv2_1 recv2_2; do
	$BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/$subvol | _filter_scratch
done
mkdir $SCRATCH_MNT/subvol{1,2}/.snapshots
touch $SCRATCH_MNT/subvol{1,2}/foo

# Create base snapshots and send them
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/subvol1 \
	$SCRATCH_MNT/subvol1/.snapshots/1 | _filter_scratch
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/subvol2 \
	$SCRATCH_MNT/subvol2/.snapshots/1 | _filter_scratch
for recv in recv1_1 recv1_2 recv2_1 recv2_2; do
	$BTRFS_UTIL_PROG send $SCRATCH_MNT/subvol1/.snapshots/1 2> /dev/null | \
		$BTRFS_UTIL_PROG receive $SCRATCH_MNT/${recv} | _filter_scratch
done

# Now do 10 loops of concurrent incremental send/receives
for i in `seq 1 10`; do
	prev=$i
	curr=$((i+1))

	$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/subvol1 \
		$SCRATCH_MNT/subvol1/.snapshots/${curr} > /dev/null
	($BTRFS_UTIL_PROG send -p $SCRATCH_MNT/subvol1/.snapshots/${prev} \
		$SCRATCH_MNT/subvol1/.snapshots/${curr} 2> /dev/null | \
		$BTRFS_UTIL_PROG receive $SCRATCH_MNT/recv1_1) > /dev/null &
	($BTRFS_UTIL_PROG send -p $SCRATCH_MNT/subvol1/.snapshots/${prev} \
		$SCRATCH_MNT/subvol1/.snapshots/${curr} 2> /dev/null | \
		$BTRFS_UTIL_PROG receive $SCRATCH_MNT/recv1_2) > /dev/null &

	$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/subvol2 \
		$SCRATCH_MNT/subvol2/.snapshots/${curr} > /dev/null
	($BTRFS_UTIL_PROG send -p $SCRATCH_MNT/subvol2/.snapshots/${prev} \
		$SCRATCH_MNT/subvol2/.snapshots/${curr} 2> /dev/null | \
		$BTRFS_UTIL_PROG receive $SCRATCH_MNT/recv2_1) > /dev/null &
	($BTRFS_UTIL_PROG send -p $SCRATCH_MNT/subvol2/.snapshots/${prev} \
		$SCRATCH_MNT/subvol2/.snapshots/${curr} 2> /dev/null | \
		$BTRFS_UTIL_PROG receive $SCRATCH_MNT/recv2_2) > /dev/null &
	wait
done

_scratch_unmount

status=0
exit