| #! /bin/bash |
| # FS QA Test No. 066 |
| # |
| # This test is motivated by an fsync issue discovered in btrfs. |
| # The issue was that the fsync log replay code did not remove xattrs that were |
| # deleted before the inode was fsynced. So verify that if we delete a xattr from |
| # a file and then fsync the file, after log replay the file does not have that |
| # xattr anymore. Also test the case where a file is fsynced, one of its xattrs |
| # is removed, a hard link to that file is created and the fsync log is committed |
| # by issuing an fsync on another file. This indirect case should also result in |
| # not having the xattr anymore after the fsync log is replayed. |
| # |
| # The btrfs issue was fixed by the following linux kernel patch: |
| # |
| # Btrfs: remove deleted xattrs on fsync log replay |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (C) 2015 SUSE Linux Products GmbH. All Rights Reserved. |
| # Author: Filipe Manana <fdmanana@suse.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 |
| #----------------------------------------------------------------------- |
| # |
| |
| seq=`basename $0` |
| seqres=$RESULT_DIR/$seq |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| _cleanup_flakey |
| rm -f $tmp.* |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/dmflakey |
| . ./common/attr |
| |
| # real QA test starts here |
| _supported_fs generic |
| _supported_os Linux |
| _require_scratch |
| _require_dm_target flakey |
| _require_attrs |
| |
| rm -f $seqres.full |
| |
| _scratch_mkfs >> $seqres.full 2>&1 |
| _require_metadata_journaling $SCRATCH_DEV |
| _init_flakey |
| _mount_flakey |
| |
| # Create out test file and add 3 xattrs to it. |
| touch $SCRATCH_MNT/foobar |
| $SETFATTR_PROG -n user.attr1 -v val1 $SCRATCH_MNT/foobar |
| $SETFATTR_PROG -n user.attr2 -v val2 $SCRATCH_MNT/foobar |
| $SETFATTR_PROG -n user.attr3 -v val3 $SCRATCH_MNT/foobar |
| |
| # Make sure everything is durably persisted. |
| sync |
| |
| # Now delete the second xattr and fsync the inode. |
| $SETFATTR_PROG -x user.attr2 $SCRATCH_MNT/foobar |
| $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/foobar |
| |
| _flakey_drop_and_remount |
| |
| # After the fsync log is replayed, the file should have only 2 xattrs, the ones |
| # named user.attr1 and user.attr3. The btrfs fsync log replay bug left the file |
| # with the 3 xattrs that we had before deleting the second one and fsyncing the |
| # file. |
| echo "xattr names and values after first fsync log replay:" |
| $GETFATTR_PROG --absolute-names --dump $SCRATCH_MNT/foobar | _filter_scratch |
| |
| # Now write some data to our file, fsync it, remove the first xattr, add a new |
| # hard link to our file and commit the fsync log by fsyncing some other new |
| # file. This is to verify that after log replay our first xattr does not exist |
| # anymore. |
| echo "hello world!" >> $SCRATCH_MNT/foobar |
| $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/foobar |
| $SETFATTR_PROG -x user.attr1 $SCRATCH_MNT/foobar |
| ln $SCRATCH_MNT/foobar $SCRATCH_MNT/foobar_link |
| touch $SCRATCH_MNT/qwerty |
| $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/qwerty |
| |
| _flakey_drop_and_remount |
| |
| # Now only the xattr with name user.attr3 should be set in our file. |
| echo "xattr names and values after second fsync log replay:" |
| $GETFATTR_PROG --absolute-names --dump $SCRATCH_MNT/foobar | _filter_scratch |
| |
| status=0 |
| exit |