mirror of
https://github.com/linux-apfs/apfstests.git
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Ilya Dryomov
85c9af689b
This is obviously wrong and makes ./check -r skip over tests on ext4 with "ext4 on $DEV not configured with metadata journaling". Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
102 lines
3.2 KiB
Bash
Executable File
102 lines
3.2 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 090
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#
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# Test that after syncing the filesystem, adding a hard link to a file,
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# syncing the filesystem again, doing a write to the file that increases
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# its size and then doing a fsync against that file, durably persists the
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# data written to the file. That is, after log/journal replay, the data
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# is available.
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#
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# This test is motivated by a bug found in btrfs.
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#
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#-----------------------------------------------------------------------
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# Copyright (C) 2015 SUSE Linux Products GmbH. All Rights Reserved.
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# Author: Filipe Manana <fdmanana@suse.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_flakey
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rm -f $tmp.*
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/dmflakey
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch
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_require_dm_target flakey
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rm -f $seqres.full
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_scratch_mkfs >> $seqres.full 2>&1
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_require_metadata_journaling $SCRATCH_DEV
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_init_flakey
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_mount_flakey
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# Create the test file with some initial data and then fsync it.
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# The fsync here is only needed to trigger the issue in btrfs, as it causes the
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# the flag BTRFS_INODE_NEEDS_FULL_SYNC to be removed from the btrfs inode.
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$XFS_IO_PROG -f -c "pwrite -S 0xaa 0 32k" \
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-c "fsync" \
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$SCRATCH_MNT/foo | _filter_xfs_io
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sync
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# Add a hard link to our file.
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# On btrfs this sets the flag BTRFS_INODE_COPY_EVERYTHING on the btrfs inode,
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# which is a necessary condition to trigger the issue.
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ln $SCRATCH_MNT/foo $SCRATCH_MNT/bar
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# Sync the filesystem to force a commit of the current btrfs transaction, this
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# is a necessary condition to trigger the bug on btrfs.
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sync
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# Now append more data to our file, increasing its size, and fsync the file.
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# In btrfs because the inode flag BTRFS_INODE_COPY_EVERYTHING was set and the
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# write path did not update the inode item in the btree nor the delayed inode
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# item (in memory structure) in the current transaction (created by the fsync
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# handler), the fsync did not record the inode's new i_size in the fsync
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# log/journal. This made the data unavailable after the fsync log/journal is
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# replayed.
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$XFS_IO_PROG -c "pwrite -S 0xbb 32K 32K" \
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-c "fsync" \
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$SCRATCH_MNT/foo | _filter_xfs_io
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echo "File content after fsync and before crash:"
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od -t x1 $SCRATCH_MNT/foo
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_flakey_drop_and_remount
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echo "File content after crash and log replay:"
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od -t x1 $SCRATCH_MNT/foo
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status=0
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exit
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