| #! /bin/bash |
| # 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 |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2015 Red Hat 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" |
| |
| 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 |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| _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 |
| } |
| |
| rm -f $seqres.full |
| nr_cpu=`$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 |
| 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 |