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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2015 Red Hat Inc. All Rights Reserved.
#
# FS QA Test No. 084
#
# Test hardlink to unlinked file.
#
# Regression test for commit:
# aae8a97 fs: Don't allow to create hardlink for deleted file
#
. ./common/preamble
_begin_fstest auto metadata quick
# Import common functions.
. ./common/filter
# real QA test starts here
_supported_fs generic
_require_scratch
link_unlink_storm()
{
local src=$1
local target=$2
local i=0
while true; do
ln -f $src $target.$i >/dev/null 2>&1
rm -f $target.$i >/dev/null 2>&1
let i=i+1
done
}
nr_cpu=`$here/src/feature -o`
echo "Silence is golden"
_scratch_mkfs >>$seqres.full 2>&1
_scratch_mount
# create, open & unlinked files so unlinked inode list is not empty
$here/src/multi_open_unlink -f $SCRATCH_MNT/$seq.unlinked -n $nr_cpu &
open_pid=$!
# start link/unlink storm
src=$SCRATCH_MNT/$seq.target
touch $src
for i in `seq 1 $nr_cpu`; do
target=$SCRATCH_MNT/$seq.target.link.$i
link_unlink_storm $src $target &
link_pids="$link_pids $!"
done
# remove & re-create target to race with link/unlink
while true; do
rm -f $src
touch $src
done &
sleep 5
kill $! >/dev/null 2>&1
kill $open_pid $link_pids >/dev/null 2>&1
wait $open_pid $link_pids
# all done, no oops/hang expected, _check_filesystems checks SCRATCH_DEV after test
status=0
exit
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