| #!/bin/bash |
| # FS QA Test No. 251 |
| # |
| # This test was created in order to verify filesystem FITRIM implementation. |
| # By many concurrent copy and remove operations and checking that files |
| # does not change after copied into SCRATCH_MNT test if FITRIM implementation |
| # corrupts the filesystem (data/metadata). |
| # |
| #----------------------------------------------------------------------- |
| # Copyright 2010 (C) Red Hat, Inc., Lukas Czerner <lczerner@redhat.com> |
| # |
| # 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 |
| #----------------------------------------------------------------------- |
| |
| owner=lczerner@redhat.com |
| |
| seq=`basename $0` |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=`mktemp -d` |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 3 |
| trap "_destroy; exit \$status" 2 15 |
| chpid=0 |
| mypid=$$ |
| |
| # get standard environment, filters and checks |
| . ./common.rc |
| . ./common.filter |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| _require_scratch |
| _scratch_mkfs >/dev/null 2>&1 |
| _scratch_mount |
| |
| _cleanup() |
| { |
| rm -rf $tmp |
| } |
| |
| _destroy() |
| { |
| kill $pids $fstrim_pid |
| wait $pids $fstrim_pid |
| rm -rf $tmp |
| } |
| |
| _destroy_fstrim() |
| { |
| kill $fpid |
| wait $fpid |
| } |
| |
| _fail() |
| { |
| echo "$1" |
| kill $mypid |
| } |
| |
| _check_fstrim_support() |
| { |
| $here/src/fstrim -l 10M $SCRATCH_MNT &> /dev/null |
| } |
| |
| ## |
| # Background FSTRIM loop. We are trimming the device in the loop and for |
| # test coverage, we are doing whole device trim followed by several smaller |
| # trims. |
| ## |
| fstrim_loop() |
| { |
| trap "_destroy_fstrim; exit \$status" 2 15 |
| fsize=$(df | grep $SCRATCH_MNT | grep $SCRATCH_DEV | awk '{print $2}') |
| |
| while true ; do |
| step=1048576 |
| start=0 |
| $here/src/fstrim $SCRATCH_MNT & |
| fpid=$! |
| wait $fpid |
| while [ $start -lt $fsize ] ; do |
| $here/src/fstrim -s ${start}k -l ${step}k $SCRATCH_MNT & |
| fpid=$! |
| wait $fpid |
| start=$(( $start + $step )) |
| done |
| done |
| } |
| |
| function check_sums() { |
| ( |
| cd $SCRATCH_MNT/$p |
| find -P . -xdev -type f -print0 | xargs -0 md5sum | sort -o $tmp/stress.$$.$p |
| ) |
| |
| diff $tmp/content.sums $tmp/stress.$$.$p |
| if [ $? -ne 0 ]; then |
| _fail "!!!Checksums has changed - Filesystem possibly corrupted!!!\n" |
| fi |
| rm -f $tmp/stress.$$.$p |
| } |
| |
| function run_process() { |
| local p=$1 |
| repeat=10 |
| |
| sleep $((5*$p))s & |
| export chpid=$! && wait $chpid &> /dev/null |
| chpid=0 |
| |
| while [ $repeat -gt 0 ]; do |
| |
| # Remove old directories. |
| rm -rf $SCRATCH_MNT/$p |
| export chpid=$! && wait $chpid &> /dev/null |
| |
| # Copy content -> partition. |
| mkdir $SCRATCH_MNT/$p |
| cp -axT $content $SCRATCH_MNT/$p |
| export chpid=$! && wait $chpid &> /dev/null |
| |
| check_sums |
| repeat=$(( $repeat - 1 )) |
| done |
| } |
| |
| nproc=20 |
| content=$here |
| |
| # Check for FITRIM support |
| echo -n "Checking FITRIM support: " |
| _check_fstrim_support || _notrun "FSTRIM is not supported" |
| echo "done." |
| |
| mkdir -p $tmp |
| |
| ( |
| cd $content |
| find -P . -xdev -type f -print0 | xargs -0 md5sum | sort -o $tmp/content.sums |
| ) |
| |
| echo -n "Running the test: " |
| pids="" |
| fstrim_loop & |
| fstrim_pid=$! |
| p=1 |
| while [ $p -le $nproc ]; do |
| run_process $p & |
| pids="$pids $!" |
| p=$(($p+1)) |
| done |
| echo "done." |
| |
| wait $pids |
| kill $fstrim_pid |
| wait $fstrim_pid |
| |
| status=0 |
| |
| exit |