mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Nikolay Borisov
2a7406efec
This patch updates btrfs/215 to work with latest upstream kernel. That's
required since commit 324bcf54c449 ("mm: use limited read-ahead to satisfy read")
changed readahead logic to always issue a read even if the RA pages are
set to 0. This results in 1 extra io being issued so the counts in the
test should be incremented by 1. Also use the opportunity to update the
commit reference since it's been merged in the upstream kernel.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
92 lines
2.6 KiB
Bash
Executable File
92 lines
2.6 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FS QA Test 215
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#
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# Test that reading corrupted files would correctly increment device status
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# counters. This is fixed by the following linux kernel commit:
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# 814723e0a55a ("btrfs: increment device corruption error in case of checksum error")
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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 $seqres.full
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# real QA test starts here
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get_physical()
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{
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$BTRFS_UTIL_PROG inspect-internal dump-tree -t 3 $SCRATCH_DEV | \
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grep $1 -A2 | \
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$AWK_PROG "(\$1 ~ /stripe/ && \$3 ~ /devid/ && \$2 ~ /0/) { print \$6 }"
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}
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# Modify as appropriate.
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_supported_fs btrfs
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_scratch_mkfs > /dev/null
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# disable freespace inode to ensure file is the first thing in the data
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# blobk group
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_scratch_mount -o nospace_cache
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blocksize=$(_get_block_size $SCRATCH_MNT)
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filesize=$((8*$blocksize))
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uuid=$(findmnt -n -o UUID "$SCRATCH_MNT")
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if [ ! -e /sys/fs/btrfs/$uuid/bdi ]; then
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_notrun "bdi link not found"
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fi
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#create an 8 block file
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$XFS_IO_PROG -d -f -c "pwrite -S 0xbb -b $filesize 0 $filesize" "$SCRATCH_MNT/foobar" > /dev/null
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logical_extent=$($FILEFRAG_PROG -v "$SCRATCH_MNT/foobar" | _filter_filefrag | cut -d '#' -f 1)
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physical_extent=$(get_physical $logical_extent)
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echo "logical = $logical_extent physical=$physical_extent" >> $seqres.full
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# corrupt first 4 blocks of file
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_scratch_unmount
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$XFS_IO_PROG -d -c "pwrite -S 0xaa -b $blocksize $physical_extent $((4*$blocksize))" $SCRATCH_DEV > /dev/null
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_scratch_mount
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# disable readahead to avoid skewing the counter
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echo 0 > /sys/fs/btrfs/$uuid/bdi/read_ahead_kb
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# buffered reads whould result in 2 errors since readahead code always submits
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# at least 1 page worth of IO and it will be counted as an error as well
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$XFS_IO_PROG -c "pread -b $filesize 0 $filesize" "$SCRATCH_MNT/foobar" > /dev/null 2>&1
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errs=$($BTRFS_UTIL_PROG device stats $SCRATCH_DEV | awk '/corruption_errs/ { print $2 }')
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if [ $errs -ne 2 ]; then
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_fail "Errors: $errs expected: 2"
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fi
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# DIO does check every sector
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$XFS_IO_PROG -d -c "pread -b $filesize 0 $filesize" "$SCRATCH_MNT/foobar" > /dev/null 2>&1
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errs=$($BTRFS_UTIL_PROG device stats $SCRATCH_DEV | awk '/corruption_errs/ { print $2 }')
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if [ $errs -ne 6 ]; then
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_fail "Errors: $errs expected: 6"
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fi
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# success, all done
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echo "Silence is golden"
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status=0
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exit
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