| #! /bin/bash |
| # FS QA Test No. 172 |
| # |
| # Reflink a file that uses more than half of the space, then try to observe |
| # ENOSPC while copy-on-writing the file via the page cache. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2015, Oracle and/or its affiliates. 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 -rf $tmp.* $testdir1 |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/populate |
| . ./common/filter |
| . ./common/attr |
| . ./common/reflink |
| |
| # real QA test starts here |
| _supported_os Linux |
| _require_scratch_reflink |
| _require_cp_reflink |
| |
| rm -f $seqres.full |
| |
| echo "Format and mount" |
| _scratch_mkfs > $seqres.full 2>&1 |
| _scratch_mount >> $seqres.full 2>&1 |
| |
| testdir=$SCRATCH_MNT/test-$seq |
| mkdir $testdir |
| |
| echo "Reformat with appropriate size" |
| blksz="$(_get_block_size $testdir)" |
| umount $SCRATCH_MNT |
| |
| file_size=$((168 * 1024 * 1024)) |
| fs_size=$((256 * 1024 * 1024)) |
| _scratch_mkfs_sized $fs_size >> $seqres.full 2>&1 |
| _scratch_mount >> $seqres.full 2>&1 |
| rm -rf $testdir |
| mkdir $testdir |
| |
| echo "Create a big file and reflink it" |
| _pwrite_byte 0x61 0 $file_size $testdir/bigfile >> $seqres.full 2>&1 |
| _cp_reflink $testdir/bigfile $testdir/clonefile |
| sync |
| |
| echo "Allocate the rest of the space" |
| _fill_fs $fs_size $testdir/space $blksz 0 >> $seqres.full 2>&1 |
| sync |
| |
| echo "CoW the big file" |
| out="$(_pwrite_byte 0x62 0 $file_size $testdir/bigfile 2>&1 | \ |
| _filter_xfs_io_error)" |
| echo ${out} | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" |
| echo ${out} >> $seqres.full 2>&1 |
| echo ${out} |
| |
| echo "Remount and try CoW again" |
| _scratch_cycle_mount |
| |
| out="$(_pwrite_byte 0x62 0 $file_size $testdir/bigfile 2>&1 | \ |
| _filter_xfs_io_error)" |
| echo ${out} | grep -q "No space left on device" || echo "CoW should have failed with ENOSPC" |
| echo ${out} >> $seqres.full 2>&1 |
| echo ${out} |
| |
| # success, all done |
| status=0 |
| exit |