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https://github.com/linux-apfs/apfstests.git
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Darrick J. Wong
d00cc974c7
This test exercises xfs_db functionality that relates to the free space btrees on the data device. Therefore, make sure that the files we create are not realtime files. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
113 lines
2.9 KiB
Bash
Executable File
113 lines
2.9 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
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#
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# FS QA Test No. 004
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#
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# exercise xfs_db bug #789674 and other freesp functionality
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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=0
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_cleanup()
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{
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_scratch_unmount
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rm -f $tmp.*
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exit $status
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}
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trap "_cleanup" 0 1 2 3 15
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_populate_scratch()
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{
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echo "=== mkfs output ===" >>$seqres.full
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_scratch_mkfs_xfs | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs
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. $tmp.mkfs
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_scratch_mount
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# This test looks at specific behaviors of the xfs_db freesp command,
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# which reports on the contents of the free space btrees for the data
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# device. Don't let anything get created on the realtime volume.
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$XFS_IO_PROG -c 'chattr -t' $SCRATCH_MNT
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dd if=/dev/zero of=$SCRATCH_MNT/foo count=200 bs=4096 >/dev/null 2>&1 &
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dd if=/dev/zero of=$SCRATCH_MNT/goo count=400 bs=4096 >/dev/null 2>&1 &
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dd if=/dev/zero of=$SCRATCH_MNT/moo count=800 bs=4096 >/dev/null 2>&1 &
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wait
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_scratch_unmount # flush everything
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_scratch_mount # and then remount
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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 xfs
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_require_scratch
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_require_no_large_scratch_dev
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rm -f $seqres.full
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_populate_scratch
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eval `$DF_PROG -P --block-size=512 $SCRATCH_MNT 2>&1 \
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| tail -1 | $AWK_PROG '{ printf "blocks=%u used=%u avail=%u\n", $3, $4, $5 }'`
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echo "df gave: blocks=$blocks used=$used avail=$avail" >>$seqres.full
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echo "blocksize from mkfs is '$dbsize'" >>$seqres.full
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_scratch_xfs_db -r -c "freesp -s" >$tmp.xfs_db
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echo "xfs_db for $SCRATCH_DEV" >>$seqres.full
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cat $tmp.xfs_db >>$seqres.full
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eval `$XFS_IO_PROG -x -c resblks $SCRATCH_MNT 2>&1 \
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| $AWK_PROG '/available/ { printf "resblks=%u\n", $5 }'`
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echo "resblks gave: resblks=$resblks" >>$seqres.full
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# check the 'blocks' field from freesp command is OK
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perl -ne '
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BEGIN { $avail ='$avail' * 512 + ('$resblks' * '$dbsize');
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$answer="(no xfs_db free blocks line?)" }
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/free blocks (\d+)$/ || next;
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$freesp = $1 * '$dbsize';
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if ($freesp >= $avail) {
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$answer = "yes";
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} else {
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$answer = "no ($freesp < $avail)";
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}
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END { print "$answer\n" }
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' <$tmp.xfs_db >$tmp.ans
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ans="`cat $tmp.ans`"
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echo "Checking blocks column same as df: $ans"
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if [ "$ans" != yes ]
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then
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echo "Error: $SCRATCH_DEV: freesp mismatch: $ans"
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echo "xfs_db output ..."
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cat $tmp.xfs_db
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status=1
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fi
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# check the 'pct' field from freesp command is good
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perl -ne '
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BEGIN { $percent = 0; }
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/free/ && next; # skip over free extent size number
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if (/\s+(\d+\.\d+)$/) {
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$percent += $1;
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}
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END { $percent += 0.5; print int($percent), "\n" } # round up
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' <$tmp.xfs_db >$tmp.ans
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ans="`cat $tmp.ans`"
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echo "Checking percent column yields 100: $ans"
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if [ "$ans" != 100 ]
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then
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echo "Error: $SCRATCH_DEV: pct mismatch: $ans (expected 100)"
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echo "xfs_db output ..."
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cat $tmp.xfs_db
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status=1
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fi
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exit
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