mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Chengguang Xu
2b4eae7fd8
Enable shutdown tests on overlayfs. This requires configuring overlayfs with TEST|SCRATCH_DEV pointing to block device, which act as base fs of overlay. The legacy config (pointing TEST|SCRATCH_DEV to existing directories) won't support shutdown. Extend _require_scratch_shutdown() to deal with overlay by checking shutdown support on $OVL_BASE_SCRATCH_MNT instead of $SCRATCH_MNT, so we check shutdown support status against the underlying upper fs of overlay. Introduce new _scratch_shutdown() helper to do the actual shutdown work and shutdown upper fs in the case of overlay. Also converting existing bare 'src/godown' calls to use this helper to avoid false failures when testing overlayfs. generic/042 and generic/050 assume $SCRATCH_DEV to be a local device, so add _require_local_device $SCRATCH_DEV rule. [eguan: rewrite commit log] Signed-off-by: Chengguang Xu <cgxu519@icloud.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
105 lines
2.8 KiB
Bash
Executable File
105 lines
2.8 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 042
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#
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# Test stale data exposure via writeback using various file allocation
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# modification commands. The presumption is that such commands result in partial
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# writeback and can convert a delayed allocation extent, that might be larger
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# than the ranged affected by fallocate, to a normal extent. If the fs happens
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# to crash sometime between when the extent modification is logged and writeback
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# occurs for dirty pages within the extent but outside of the fallocated range,
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# stale data exposure can occur.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2014 Red Hat, Inc. All Rights Reserved.
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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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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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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/punch
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# real QA test starts here
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rm -f $seqres.full
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_crashtest()
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{
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cmd=$1
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img=$SCRATCH_MNT/$seq.img
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mnt=$SCRATCH_MNT/$seq.mnt
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file=$mnt/file
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# Create an fs on a small, initialized image. The pattern is written to
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# the image to detect stale data exposure.
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$XFS_IO_PROG -f -c "truncate 0" -c "pwrite 0 25M" $img \
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>> $seqres.full 2>&1
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_mkfs_dev $img >> $seqres.full 2>&1
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mkdir -p $mnt
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_mount $img $mnt
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echo $cmd
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# write, run the test command and shutdown the fs
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$XFS_IO_PROG -f -c "pwrite -S 1 0 64k" -c "$cmd 60k 4k" $file | \
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_filter_xfs_io
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./src/godown -f $mnt
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$UMOUNT_PROG $mnt
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_mount $img $mnt
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# we generally expect a zero-sized file (this should be silent)
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hexdump $file
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$UMOUNT_PROG $mnt
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}
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# Modify as appropriate.
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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_scratch_shutdown
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_require_xfs_io_command "falloc"
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_require_xfs_io_command "fpunch"
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_require_xfs_io_command "fzero"
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_scratch_mkfs >/dev/null 2>&1
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_require_local_device $SCRATCH_DEV
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_require_metadata_journaling $SCRATCH_DEV
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_scratch_mount
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_crashtest "falloc -k"
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_crashtest "fpunch"
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_crashtest "fzero -k"
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status=0
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exit
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