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Theodore Ts'o
56ff01f471
The check script requires that it be run as root, so adding individualized checks for this in each teat is not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
76 lines
2.5 KiB
Bash
Executable File
76 lines
2.5 KiB
Bash
Executable File
#! /bin/bash
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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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#-----------------------------------------------------------------------
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#
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# Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
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# Author: Filipe Manana <fdmanana@suse.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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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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