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https://github.com/linux-apfs/apfstests.git
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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>
78 lines
2.3 KiB
Bash
Executable File
78 lines
2.3 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FSQA Test No. 562
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#
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# Test that if we clone a file with some large extents into a file that has
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# many small extents, when the fs is nearly full, the clone operation does
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# not fail and produces the correct result.
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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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. ./common/reflink
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# real QA test starts here
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_supported_fs generic
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_require_scratch_reflink
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_require_test_program "punch-alternating"
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_require_xfs_io_command "fpunch"
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rm -f $seqres.full
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_scratch_mkfs_sized $((512 * 1024 * 1024)) >>$seqres.full 2>&1
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_scratch_mount
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file_size=$(( 200 * 1024 * 1024 )) # 200Mb
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# Create a file with many small extents.
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$XFS_IO_PROG -f -c "pwrite -S 0xe5 -b $file_size 0 $file_size" \
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$SCRATCH_MNT/foo >>/dev/null
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$here/src/punch-alternating $SCRATCH_MNT/foo >> $seqres.full
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# Create file bar with the same size that file foo has but with large extents.
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$XFS_IO_PROG -f -c "pwrite -S 0xc7 -b $file_size 0 $file_size" \
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$SCRATCH_MNT/bar >>/dev/null
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# Fill the fs (For btrfs we are interested in filling all unallocated space
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# and most of the existing metadata block group(s), so that after this there
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# will be no unallocated space and metadata space will be mostly full but with
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# more than enough free space for the clone operation below to succeed, we
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# create files with 2Kb because that results in extents inlined in the metadata
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# (btree leafs) and it's the fastest way to fill metadata space on btrfs, by
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# default btrfs inlines up to 2Kb of data).
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i=1
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while true; do
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$XFS_IO_PROG -f -c "pwrite 0 2K" $SCRATCH_MNT/filler_$i &> /dev/null
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[ $? -ne 0 ] && break
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i=$(( i + 1 ))
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done
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# Now clone file bar into file foo. This is supposed to succeed and not fail
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# with ENOSPC for example.
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_reflink $SCRATCH_MNT/bar $SCRATCH_MNT/foo >>$seqres.full
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# Unmount and mount the filesystem again to verify the operation was durably
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# persisted.
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_scratch_cycle_mount
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echo "File foo data after cloning and remount:"
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od -A d -t x1 $SCRATCH_MNT/foo
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status=0
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exit
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