mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eryu Guan
69eb6281a9
Previously _scratch_mount didn't check the mount status and most tests continue to run even if the mount failed (unless test checks for the mount status explicitly). This would result in running tests on the underlying filesystem (usually rootfs) and implicit test failures, and such failures can be annoying and are usually hard to debug. Now _fail test by default if _scratch_mount failed and introduce _try_scratch_mount for tests that need to check mount results themselves. Suggested-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
107 lines
3.5 KiB
Bash
Executable File
107 lines
3.5 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test 443
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#
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# Regression test for the XFS rmapbt based extent swap algorithm. The extent
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# swap algorithm for rmapbt=1 filesystems unmaps/remaps individual extents to
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# rectify the rmapbt for each extent swapped between inodes. If one of the
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# inodes happens to straddle the extent <-> btree format boundary (which can
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# vary depending on inode size), the unmap/remap sequence can bounce the inodes
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# back and forth between formats many times during the swap. Since extent ->
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# btree format conversion requires a block allocation, this can consume more
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# blocks than expected, lead to block reservation overrun and free space
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# accounting inconsistency.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2018 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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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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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_test_program "punch-alternating"
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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 "swapext"
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_scratch_mkfs | _filter_mkfs >> $seqres.full 2> $tmp.mkfs
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_scratch_mount
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# get fs block size
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. $tmp.mkfs
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file1=$SCRATCH_MNT/file1
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file2=$SCRATCH_MNT/file2
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# The goal is run an extent swap where one of the associated files has the
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# minimum number of extents to remain in btree format. First, create a couple
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# files with large enough extent counts (200 or so should be plenty) to ensure
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# btree format on the largest possible inode size filesystems.
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$XFS_IO_PROG -fc "falloc 0 $((400 * dbsize))" $file1
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./src/punch-alternating $file1
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$XFS_IO_PROG -fc "falloc 0 $((400 * dbsize))" $file2
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./src/punch-alternating $file2
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# Now run an extent swap at every possible extent count down to 0. Depending on
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# inode size, one of these swaps will cover the boundary case between extent and
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# btree format.
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for i in $(seq 1 2 399); do
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# punch one extent from the tmpfile and swap
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$XFS_IO_PROG -c "fpunch $((i * dbsize)) $dbsize" $file2
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$XFS_IO_PROG -c "swapext $file2" $file1
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# punch the same extent from the old fork (now in file2) to resync the
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# extent counts and repeat
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$XFS_IO_PROG -c "fpunch $((i * dbsize)) $dbsize" $file2
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done
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# sanity check that no extents are left over
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$XFS_IO_PROG -c "fiemap" $file1 | _filter_fiemap
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$XFS_IO_PROG -c "fiemap" $file2 | _filter_fiemap
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# failure results in fs corruption and possible assert failure
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echo Silence is golden
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# success, all done
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status=0
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exit
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