| #! /bin/bash |
| # FS QA Test 353 |
| # |
| # Check if fiemap ioctl returns correct SHARED flag on reflinked file |
| # before and after sync the fs |
| # |
| # Btrfs has a bug in checking shared extent, which can only handle metadata |
| # already committed to disk, but not delayed extent tree modification. |
| # This caused SHARED flag only occurs after sync. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2016 Fujitsu. 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 |
| . ./common/reflink |
| . ./common/punch |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| |
| # Modify as appropriate. |
| _supported_fs generic |
| _supported_os Linux |
| _require_scratch_reflink |
| _require_xfs_io_command "fiemap" |
| |
| _scratch_mkfs > /dev/null 2>&1 |
| _scratch_mount |
| |
| blocksize=64k |
| file1="$SCRATCH_MNT/file1" |
| file2="$SCRATCH_MNT/file2" |
| |
| # write the initial file |
| _pwrite_byte 0xcdcdcdcd 0 $blocksize $file1 | _filter_xfs_io |
| |
| # reflink initial file |
| _reflink_range $file1 0 $file2 0 $blocksize | _filter_xfs_io |
| |
| # check their fiemap to make sure it's correct |
| echo "before sync:" |
| echo "$file1" | _filter_scratch |
| $XFS_IO_PROG -c "fiemap -v" $file1 | _filter_fiemap_flags |
| echo "$file2" | _filter_scratch |
| $XFS_IO_PROG -c "fiemap -v" $file2 | _filter_fiemap_flags |
| |
| # sync and recheck, to make sure the fiemap doesn't change just |
| # due to sync |
| sync |
| echo "after sync:" |
| echo "$file1" | _filter_scratch |
| $XFS_IO_PROG -c "fiemap -v" $file1 | _filter_fiemap_flags |
| echo "$file2" | _filter_scratch |
| $XFS_IO_PROG -c "fiemap -v" $file2 | _filter_fiemap_flags |
| |
| # success, all done |
| status=0 |
| exit |