mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Qu Wenruo
82eda8820d
Add a test case where falloc is called on multiple holes with qgroup enabled. This can cause qgroup reserved data space leak and false EDQUOT error even we're not reaching the limit. The fix is titled: "btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space" Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
70 lines
1.7 KiB
Bash
Executable File
70 lines
1.7 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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# FS QA Test btrfs/193
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#
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# Test if btrfs is going to leak qgroup reserved data space when
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# falloc on multiple holes fails.
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# The fix is titled:
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# "btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space"
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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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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch
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_require_xfs_io_command falloc
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_scratch_mkfs > /dev/null
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_scratch_mount
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$BTRFS_UTIL_PROG quota enable "$SCRATCH_MNT" > /dev/null
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$BTRFS_UTIL_PROG quota rescan -w "$SCRATCH_MNT" > /dev/null
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$BTRFS_UTIL_PROG qgroup limit -e 256M "$SCRATCH_MNT"
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# Create a file with the following layout:
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# 0 128M 256M 384M
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# | Hole |4K| Hole |4K| Hole |
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# The total hole size will be 384M - 8k
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truncate -s 384m "$SCRATCH_MNT/file"
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$XFS_IO_PROG -c "pwrite 128m 4k" -c "pwrite 256m 4k" \
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"$SCRATCH_MNT/file" | _filter_xfs_io
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# Falloc 0~384M range, it's going to fail due to the qgroup limit
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$XFS_IO_PROG -c "falloc 0 384m" "$SCRATCH_MNT/file" | _filter_xfs_io_error
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rm -f "$SCRATCH_MNT/file"
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# Ensure above delete reaches disk and free some space
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sync
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# We should be able to write at least 3/4 of the limit
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$XFS_IO_PROG -f -c "pwrite 0 192m" "$SCRATCH_MNT/file" | _filter_xfs_io
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# success, all done
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status=0
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exit
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