mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
a860a167d8
fstests only supports Linux, so get rid of this unnecessary predicate. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
95 lines
2.8 KiB
Bash
Executable File
95 lines
2.8 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2017 CTERA Networks. All Rights Reserved.
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#
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# FS QA Test 032
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#
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# Test concurrent copy up of lower hardlinks.
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#
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# Two tasks make a metadata change concurrently on two hardlinks of a large
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# lower inode. The copy up should be triggers by one of the tasks and the
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# other should be waiting for copy up to complete. Both copy up targets
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# should end up being upper hardlinks and both metadata changes should be
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# applied.
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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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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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# 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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_supported_fs overlay
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_require_scratch
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_require_scratch_feature index
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# Remove all files from previous tests
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_scratch_mkfs
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# overlay copy_up doesn't deal with sparse file well, holes will be filled by
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# zeros, so if both hardlinks are broken on copy up, we need (2*1G) free space
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# on $OVL_BASE_SCRATCH_MNT.
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_require_fs_space $OVL_BASE_SCRATCH_MNT $((1024*1024*2))
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# Create a large file in lower with 2 hardlinks.
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# Make the file have non zero blocks, so copy up won't be able to do
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# a naive sparse file copy up optimization.
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lowerdir=$OVL_BASE_SCRATCH_MNT/$OVL_LOWER
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mkdir -p $lowerdir
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$XFS_IO_PROG -fc "pwrite 1g 4k" $lowerdir/zero >> $seqres.full
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ln $lowerdir/zero $lowerdir/one
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ln $lowerdir/zero $lowerdir/two
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# Enable overlay index feature to prevent breaking hardlinks on copy up
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_scratch_mount -o index=on
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do_cmd()
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{
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echo "`date +%T` $1..." >> $seqres.full
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eval "$1"
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echo "`date +%T` ...$1" >> $seqres.full
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}
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# Perform one modification on each hardlink (size and owner)
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do_cmd "echo >> $SCRATCH_MNT/one" &
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#
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# When hardlinks are broken and overlayfs supports concurrent copy up,
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# $seqres.full will show that file two copy up started ~2s after file one
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# copy up started and ended ~2s after file one copy up ended.
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# With synchronized copy up of lower inodes, $seqres.full will show that
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# file two copy up ended at the same time as file one copy up.
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# Without sparse file copy up optimizations, copy of 1g on a standard disk
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# is expected to take more than 2s.
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# If underlying filesystem supports clone, overlay clone up with take less
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# than 1s and this test will not be doing concurrent copy up of hardlinks,
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# but rather consequent copy up of hardlinks.
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#
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sleep 2
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do_cmd "chown 100 $SCRATCH_MNT/two" &
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wait
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# Expect all hardlinks to show both metadata modifications (owner and size).
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# List <nlink> <owner> <size> <name>:
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for f in zero one two; do
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_ls_l -n $SCRATCH_MNT/$f | awk '{ print $2, $3, $5, $9 }' | _filter_scratch
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done
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status=0
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exit
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