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Darrick J. Wong
0ac0d8fbf9
All the remaining tests that use _require_no_rtinherit can be adapted to ignore SCRATCH_RTDEV or to force files to be created on the data device. This makes the helper unnecessary and increases test coverage, so remove this helper. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
82 lines
2.5 KiB
Bash
Executable File
82 lines
2.5 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2009 Dave Chinner
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#
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# FS QA Test No. 205
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#
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# Test out ENOSPC flushing on small filesystems.
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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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# 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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# single AG will cause xfs_repair to fail checks.
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_require_scratch_nocheck
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rm -f $seqres.full
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# Disable the scratch rt device to avoid test failures relating to the rt
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# bitmap consuming all the free space in our small data device.
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unset SCRATCH_RTDEV
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fsblksz=1024
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_scratch_mkfs_xfs -d size=$((32768*fsblksz)) -b size=$fsblksz >> $seqres.full 2>&1
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_scratch_mount
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# fix the reserve block pool to a known size so that the enospc calculations
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# work out correctly.
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_scratch_resvblks 1024 >> $seqres.full 2>&1
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# on a 16MB filesystem, there's 32768x$fsblkszbyte blocks. used is:
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# - 4944 in the log,
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# - 32+1 for the root inode cluster
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# - 4 for the AG header
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# - 2 for free space btrees
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# - 4 for the AGFL
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# - min(%5, 1024) = 1024 blocks for the reserve pool
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# - about 15 blocks I can't account for right now.
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# That leaves ~26,745 blocks free to use.
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#
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# Writing the following three files fill the fs almost exactly.
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#
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# $ df -k /mnt/scratch
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# Filesystem 1K-blocks Used Available Use% Mounted on
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# /dev/ubdc 13912 13908 4 100% /mnt/scratch
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#
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blks=$(( ($(_get_available_space $SCRATCH_MNT) / $fsblksz) - 15 ))
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test $blks -gt 1100 || _notrun "not enough space"
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b1=$(echo $blks | sed -e 's/[0-9][0-9][0-9]$/000/g')
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# in case b2 begins with '0' as '098' and being treated as octal number, force
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# it to be 10 based
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b2=$((10#$(echo $blks | sed -e 's/^[0-9][0-9]//g')))
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echo "blks: $blks b1: $b1 b2: $b2" >> $seqres.full
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dd if=/dev/zero of=$SCRATCH_MNT/fred bs=$fsblksz count=$((b1 - 1000)) 2>&1 | _filter_dd
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dd if=/dev/zero of=$SCRATCH_MNT/fred2 bs=$fsblksz count=$b2 2>&1 | _filter_dd
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dd if=/dev/zero of=$SCRATCH_MNT/fred3 bs=$fsblksz count=$((blks - (b1 + b2))) 2>&1 | _filter_dd
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rm -f $SCRATCH_MNT/fred*
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echo "*** one file"
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# now try a single file of that size
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dd if=/dev/zero of=$SCRATCH_MNT/fred bs=$fsblksz count=$blks 2>&1 | _filter_dd
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#rm -f $SCRATCH_MNT/fred*
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echo "*** one file, a few bytes at a time"
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# now try a single file of that size
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dd if=/dev/zero of=$SCRATCH_MNT/fred bs=15 count=$[blks/15*$fsblksz] 2>&1 | _filter_dd
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echo space: $(_get_available_space $SCRATCH_MNT) >> $seqres.full
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# success, all done
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echo "*** done"
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status=0
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