--- /dev/null
+#! /bin/bash
+# FS QA Test No. btrfs/152
+#
+# Test that incremental send/receive operations don't corrupt metadata when
+# qgroups are enabled.
+#
+#-----------------------------------------------------------------------
+#
+# Copyright (c) 2017 NETGEAR, Inc. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+#
+
+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
+_supported_os Linux
+_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