mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Jan Kara
3574531af4
Test 289 ignored the fact that historically journal is not accounted as fs overhead in ext3. For larger filesystems it is hidden in 1% tolerance but for filesystems smaller than 12G the test fails. So make the counting precise to work everywhere. CC: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Eric Sandeen <sandeen@redhat.com> [rjohnston@sgi.com: add lower case units to filter] Signed-off-by: Rich Johnston <rjohnston@sgi.com>
112 lines
3.5 KiB
Bash
Executable File
112 lines
3.5 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 289
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#
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# Test overhead & df output for extN filesystems
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2012 Red Hat, Inc. All Rights Reserved.
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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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# creator
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owner=sandeen@redhat.com
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seq=`basename $0`
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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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# real QA test starts here
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# Modify as appropriate.
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_supported_fs ext2 ext3 ext4
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_supported_os Linux
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_require_scratch
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rm -f $seq.full
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_scratch_mkfs >> $seq.full 2>&1
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# Get the honest truth about block counts straight from metadata on disk
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TOTAL_BLOCKS=`dumpe2fs -h $SCRATCH_DEV 2>/dev/null \
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| awk '/Block count:/{print $3}'`
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FREE_BLOCKS=`dumpe2fs -h $SCRATCH_DEV 2>/dev/null \
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| awk '/Free blocks:/{print $3}'`
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# ext3 doesn't count journal blocks as overhead, ext4 does.
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if [ $FSTYP = "ext3" ]; then
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JOURNAL_SIZE=`dumpe2fs -h $SCRATCH_DEV 2>/dev/null \
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| awk '/Journal size:/{print $3}' | _filter_size_to_bytes`
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BLOCK_SIZE=`dumpe2fs -h $SCRATCH_DEV 2>/dev/null \
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| awk '/Block size:/{print $3}'`
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JOURNAL_BLOCKS=$(($JOURNAL_SIZE/$BLOCK_SIZE))
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else
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JOURNAL_BLOCKS=0
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fi
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OVERHEAD=$(($TOTAL_BLOCKS-$FREE_BLOCKS-$JOURNAL_BLOCKS))
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# bsddf|minixdf
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# Set the behaviour for the statfs system call. The minixdf
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# behaviour is to return in the f_blocks field the total number of
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# blocks of the filesystem, while the bsddf behaviour (which is
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# the default) is to subtract the overhead blocks used by the ext2
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# filesystem and not available for file storage.
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# stat -f output looks like this; we get f_blocks from that, which
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# varies depending on the df mount options used below:
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# File: "/mnt/test"
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# ID: affc5f2b2f57652 Namelen: 255 Type: ext2/ext3
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# Block size: 4096 Fundamental block size: 4096
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# Blocks: Total: 5162741 Free: 5118725 Available: 4856465
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# Inodes: Total: 1313760 Free: 1313749
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_scratch_mount "-o minixdf"
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MINIX_F_BLOCKS=`stat -f $SCRATCH_MNT | awk '/^Blocks/{print $3}'`
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umount $SCRATCH_MNT
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_scratch_mount "-o bsddf"
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BSD_F_BLOCKS=`stat -f $SCRATCH_MNT | awk '/^Blocks/{print $3}'`
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umount $SCRATCH_MNT
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# Echo data to $seq.full for analysis
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echo "Overhead is $OVERHEAD blocks out of $TOTAL_BLOCKS ($FREE_BLOCKS free)" >> $seq.full
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echo "MINIX free blocks $MINIX_F_BLOCKS" >> $seq.full
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echo "BSD free blocks $BSD_F_BLOCKS" >> $seq.full
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# minix should be exactly equal (hence tolerance of 0)
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_within_tolerance "minix f_blocks" $MINIX_F_BLOCKS $TOTAL_BLOCKS 0 -v
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# bsd should be within ... we'll say 1% for some slop
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_within_tolerance "bsd f_blocks" $BSD_F_BLOCKS $(($TOTAL_BLOCKS-$OVERHEAD)) 1% -v
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# success, all done
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status=0
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exit
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