+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved.
+#
+# FS QA Test btrfs/193
+#
+# Test if btrfs is going to leak qgroup reserved data space when
+# falloc on multiple holes fails.
+# The fix is titled:
+# "btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space"
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+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
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+
+# Modify as appropriate.
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_xfs_io_command falloc
+
+_scratch_mkfs > /dev/null
+_scratch_mount
+
+$BTRFS_UTIL_PROG quota enable "$SCRATCH_MNT" > /dev/null
+$BTRFS_UTIL_PROG quota rescan -w "$SCRATCH_MNT" > /dev/null
+$BTRFS_UTIL_PROG qgroup limit -e 256M "$SCRATCH_MNT"
+
+# Create a file with the following layout:
+# 0 128M 256M 384M
+# | Hole |4K| Hole |4K| Hole |
+# The total hole size will be 384M - 8k
+truncate -s 384m "$SCRATCH_MNT/file"
+$XFS_IO_PROG -c "pwrite 128m 4k" -c "pwrite 256m 4k" \
+ "$SCRATCH_MNT/file" | _filter_xfs_io
+
+# Falloc 0~384M range, it's going to fail due to the qgroup limit
+$XFS_IO_PROG -c "falloc 0 384m" "$SCRATCH_MNT/file" | _filter_xfs_io_error
+rm -f "$SCRATCH_MNT/file"
+
+# Ensure above delete reaches disk and free some space
+sync
+
+# We should be able to write at least 3/4 of the limit
+$XFS_IO_PROG -f -c "pwrite 0 192m" "$SCRATCH_MNT/file" | _filter_xfs_io
+
+# success, all done
+status=0
+exit