mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
d69d223dfa
We're removing from XFS the ability to perform no-allocation file creation. This was added years ago because some customer of SGI demanded that we still be able to create (empty?) files with zero free blocks remaining so long as there were free inodes and space in existing directory blocks. This came at an unacceptable risk of ENOSPC'ing midway through a transaction and shutting down the fs, so we're removing it for the create case having changed our minds 20 years later. However, some tests fail as a result, so fix them to be more flexible about not failing when a dir/file creation fails due to ENOSPC. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
114 lines
2.6 KiB
Bash
Executable File
114 lines
2.6 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 109
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#
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# ENOSPC deadlock case from Asano Masahiro.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2005 Silicon Graphics, 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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#
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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 "rm -f $tmp.*; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs xfs
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_supported_os Linux XFS
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_require_scratch
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populate()
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{
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# "faststart" lets us effectively skip (re-)population
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[ "X$faststart" != "X" ] && rm -f $SCRATCH_MNT/F*
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# create many small files using most available space
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echo "creating small files..."
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i=0
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while [ $i -le $files -a "X$faststart" = "X" ]; do
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file=$SCRATCH_MNT/f$i
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$XFS_IO_PROG -f -d -c 'pwrite -b 64k 0 64k' $file >/dev/null
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let i=$i+1
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done
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# remove every second file, freeing up lots of space
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echo "removing small files..."
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i=1
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while [ $i -le $files -a "X$faststart" = "X" ]; do
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rm $SCRATCH_MNT/f$i
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let i=$i+2
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done
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echo "flushing changes via umount/mount."
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_scratch_unmount
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_scratch_mount
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}
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allocate()
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{
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# now try to hit the deadlock
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echo "starting parallel allocators..."
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i=0
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while [ $i -le 10 ]; do
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file=$SCRATCH_MNT/F$i
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{
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j=0
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while [ $j -lt 100 ]; do
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$XFS_IO_PROG -f -c 'pwrite -b 64k 0 16m' $file \
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>/dev/null 2>&1
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test -e $file && rm $file
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let j=$j+1
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done
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} &
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let i=$i+1
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done
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wait
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echo "all done!"
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}
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# real QA test starts here
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_scratch_unmount 2>/dev/null
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_scratch_mount
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rm -f $seqres.full
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# see if faststart is possible (and requested)
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files=2000
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faststart=""
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if [ -n "$FASTSTART" -a -f $SCRATCH_MNT/f0 ]; then
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faststart="-N" # causes us to skip the mkfs step
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fi
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_scratch_unmount
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_scratch_mkfs_xfs -dsize=160m,agcount=4 $faststart | _filter_mkfs 2>$tmp.mkfs
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cat $tmp.mkfs >>$seqres.full
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_scratch_mount
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populate
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allocate
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status=0
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exit
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