mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
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>
114 lines
2.8 KiB
Bash
Executable File
114 lines
2.8 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2017 Oracle. All Rights Reserved.
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#
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# FS QA Test 158
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#
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# The test case is check if scrub is able fix raid6 data corruption,
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# ie. if there is data corruption on two disks in the same horizontal
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# stripe, e.g. due to bitrot.
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#
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# The kernel fixes are
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# Btrfs: make raid6 rebuild retry more
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# Btrfs: fix scrub to repair raid6 corruption
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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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_require_scratch_dev_pool 4
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_require_btrfs_command inspect-internal dump-tree
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_require_btrfs_fs_feature raid56
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get_physical()
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{
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local stripe=$1
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$BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
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grep " DATA\|RAID6" -A 10 | \
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$AWK_PROG "(\$1 ~ /stripe/ && \$3 ~ /devid/ && \$2 ~ /$stripe/) { print \$6 }"
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}
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get_devid()
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{
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local stripe=$1
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$BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
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grep " DATA\|RAID6" -A 10 | \
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$AWK_PROG "(\$1 ~ /stripe/ && \$3 ~ /devid/ && \$2 ~ /$stripe/) { print \$4 }"
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}
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get_device_path()
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{
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local devid=$1
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echo "$SCRATCH_DEV_POOL" | $AWK_PROG "{print \$$devid}"
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}
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_scratch_dev_pool_get 4
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# step 1: create a raid6 btrfs and create a 128K file
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echo "step 1......mkfs.btrfs" >>$seqres.full
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mkfs_opts="-d raid6 -b 1G"
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_scratch_pool_mkfs $mkfs_opts >>$seqres.full 2>&1
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# -o nospace_cache makes sure data is written to the start position of the data
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# chunk
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_scratch_mount -o nospace_cache
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# [0,64K) is written to stripe 0 and [64K, 128K) is written to stripe 1
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$XFS_IO_PROG -f -d -c "pwrite -S 0xaa 0 128K" -c "fsync" \
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"$SCRATCH_MNT/foobar" | _filter_xfs_io
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_scratch_unmount
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phy0=$(get_physical 0)
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devid0=$(get_devid 0)
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devpath0=$(get_device_path $devid0)
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phy1=$(get_physical 1)
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devid1=$(get_devid 1)
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devpath1=$(get_device_path $devid1)
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# step 2: corrupt the 1st and 2nd stripe (stripe 0 and 1)
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echo "step 2......simulate bitrot at:" >>$seqres.full
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echo " ......stripe #0: devid $devid0 devpath $devpath0 phy $phy0" \
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>>$seqres.full
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echo " ......stripe #1: devid $devid1 devpath $devpath1 phy $phy1" \
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>>$seqres.full
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$XFS_IO_PROG -f -d -c "pwrite -S 0xbb $phy0 64K" $devpath0 > /dev/null
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$XFS_IO_PROG -f -d -c "pwrite -S 0xbb $phy1 64K" $devpath1 > /dev/null
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# step 3: scrub filesystem to repair the bitrot
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echo "step 3......repair the bitrot" >> $seqres.full
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_scratch_mount -o nospace_cache
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$BTRFS_UTIL_PROG scrub start -B $SCRATCH_MNT >> $seqres.full 2>&1
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od -x $SCRATCH_MNT/foobar
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_scratch_dev_pool_put
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# success, all done
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status=0
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exit
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