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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
8a011c00b5
This test makes sure that we can't use stale unrecovered fs metadata to drive a DISCARD festival on a disk and thereby destroy user data by accident. The following patches fixed the bug on ext4, xfs and btrfs ext4: prohibit fstrim in norecovery mode xfs: prohibit fstrim in norecovery mode Btrfs: do not allow trimming when a fs is mounted with the nologreplay option Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
68 lines
1.7 KiB
Bash
Executable File
68 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, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 537
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#
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# Ensure that we can't call fstrim on filesystems mounted norecovery, because
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# FSTRIM implementations use free space metadata to drive the discard requests
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# and we told the filesystem not to make sure the metadata are up to date.
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#
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# The following patches fixed the bug on ext4, xfs and btrfs
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# ext4: prohibit fstrim in norecovery mode
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# xfs: prohibit fstrim in norecovery mode
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# Btrfs: do not allow trimming when a fs is mounted with the nologreplay option
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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 -rf $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_os Linux
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_supported_fs generic
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_require_scratch
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_require_fstrim
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rm -f $seqres.full
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_scratch_mkfs > $seqres.full 2>&1
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_require_metadata_journaling $SCRATCH_DEV
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echo "fstrim on regular mount"
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_scratch_mount >> $seqres.full 2>&1
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$FSTRIM_PROG -v $SCRATCH_MNT >> $seqres.full 2>&1 || \
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_notrun "FSTRIM not supported"
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_scratch_unmount
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echo "fstrim on ro mount"
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_scratch_mount -o ro >> $seqres.full 2>&1
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$FSTRIM_PROG -v $SCRATCH_MNT >> $seqres.full 2>&1
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_scratch_unmount
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echo "fstrim on ro mount with no log replay"
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norecovery="norecovery"
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test $FSTYP = "btrfs" && norecovery=nologreplay
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_scratch_mount -o ro,$norecovery >> $seqres.full 2>&1
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$FSTRIM_PROG -v $SCRATCH_MNT >> $seqres.full 2>&1 && \
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echo "fstrim with unrecovered metadata just ate your filesystem"
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_scratch_unmount
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# success, all done
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status=0
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exit
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