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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2014 Fujitsu. All Rights Reserved.
#
# FS QA Test No. btrfs/036
#
# Regression test for running snapshots and send concurrently.
#
. ./common/preamble
_begin_fstest auto quick send snapshot
snapshots_pid=0
# Override the default cleanup function.
_cleanup()
{
# kill backgroud snapshots
if [ $snapshots_pid -ne 0 ] && ps -p $snapshots_pid | grep -q $snapshots_pid; then
kill -TERM $snapshots_pid 2> /dev/null
wait $snapshots_pid
fi
rm -f $tmp.*
}
do_snapshots()
{
# Wait for any running 'btrfs subvolume snapshot' subcommand before
# exitting so that after the test kills the subshell running this
# function, it does not fail with EBUSY when unmounting the scratch
# device.
trap "wait; exit" SIGTERM
i=2
while [ 1 ]
do
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT/snap_1 \
$SCRATCH_MNT/snap_$i >> $seqres.full 2>&1
let i=$i+1
sleep 1
done
}
. ./common/filter
_supported_fs btrfs
_require_scratch
_scratch_mkfs > /dev/null 2>&1
_scratch_mount
touch $SCRATCH_MNT/foo
# get file with fragments by using backwards writes.
for i in `seq 10240 -1 1`; do
$XFS_IO_PROG -f -d -c "pwrite $(($i * 4096)) 4096" \
$SCRATCH_MNT/foo > /dev/null | _filter_xfs_io
done
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT \
$SCRATCH_MNT/snap_1 >> $seqres.full 2>&1
do_snapshots &
snapshots_pid=$!
$BTRFS_UTIL_PROG send -f /dev/null $SCRATCH_MNT/snap_1 2>&1 | _filter_scratch
status=0 ; exit
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