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https://github.com/linux-apfs/apfstests.git
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Dave Chinner
1ff4192932
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
59 lines
1.7 KiB
Bash
Executable File
59 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) 2016 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FSQA Test No. 116
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#
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# Verify that when a fitrim operation is made against a btrfs filesystem, the
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# ranges [0, 64Kb[ and [68Kb, 1Mb[ of the device are not discarded, they remain
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# with the content they had before the fitrim operation. These regions of the
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# device are reserved for a boot loader to use at its will.
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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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# real QA test starts here
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch
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rm -f $seqres.full
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_scratch_mkfs >>$seqres.full 2>&1
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# Write to the [0, 64Kb[ and [68Kb, 1Mb[ ranges of the device. These ranges are
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# reserved for a boot loader to use (GRUB for example) and btrfs should never
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# use them - neither for allocating metadata/data nor should trim/discard them.
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# The range [64Kb, 68Kb[ is used for the primary superblock of the filesystem.
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$XFS_IO_PROG -c "pwrite -S 0xfd 0 64K" $SCRATCH_DEV | _filter_xfs_io
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$XFS_IO_PROG -c "pwrite -S 0xfd 68K 956K" $SCRATCH_DEV | _filter_xfs_io
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# Now mount the filesystem and perform a fitrim against it.
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_scratch_mount
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_require_batched_discard $SCRATCH_MNT
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$FSTRIM_PROG $SCRATCH_MNT
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# Now unmount the filesystem and verify the content of the ranges was not
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# modified (no trim/discard happened on them).
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_scratch_unmount
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echo "Content of the ranges [0, 64Kb] and [68Kb, 1Mb[ after fitrim:"
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od -t x1 -N $((64 * 1024)) $SCRATCH_DEV
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od -t x1 -j $((68 * 1024)) -N $((956 * 1024)) $SCRATCH_DEV
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status=0
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exit
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