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apfstests/tests/xfs/109
T
Darrick J. Wong a860a167d8 common: kill _supported_os
fstests only supports Linux, so get rid of this unnecessary predicate.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2020-09-21 01:16:50 +08:00

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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2005 Silicon Graphics, Inc. All Rights Reserved.
#
# FS QA Test No. 109
#
# ENOSPC deadlock case from Asano Masahiro.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
# real QA test starts here
_supported_fs xfs
_require_scratch
populate()
{
# "faststart" lets us effectively skip (re-)population
[ "X$faststart" != "X" ] && rm -f $SCRATCH_MNT/F*
# create many small files using most available space
echo "creating small files..."
i=0
while [ $i -le $files -a "X$faststart" = "X" ]; do
file=$SCRATCH_MNT/f$i
$XFS_IO_PROG -f -d -c 'pwrite -b 64k 0 64k' $file >/dev/null
let i=$i+1
done
# remove every second file, freeing up lots of space
echo "removing small files..."
i=1
while [ $i -le $files -a "X$faststart" = "X" ]; do
rm $SCRATCH_MNT/f$i
let i=$i+2
done
echo "flushing changes via umount/mount."
_scratch_unmount
_scratch_mount
}
allocate()
{
# now try to hit the deadlock
echo "starting parallel allocators..."
i=0
while [ $i -le 10 ]; do
file=$SCRATCH_MNT/F$i
{
j=0
while [ $j -lt 100 ]; do
$XFS_IO_PROG -f -c 'pwrite -b 64k 0 16m' $file \
>/dev/null 2>&1
test -e $file && rm $file
let j=$j+1
done
} &
let i=$i+1
done
wait
echo "all done!"
}
# real QA test starts here
_scratch_mkfs_xfs >> $seqres.full
_scratch_mount
rm -f $seqres.full
# see if faststart is possible (and requested)
files=2000
faststart=""
if [ -n "$FASTSTART" -a -f $SCRATCH_MNT/f0 ]; then
faststart="-N" # causes us to skip the mkfs step
fi
_scratch_unmount
_scratch_mkfs_xfs -dsize=160m,agcount=4 $faststart | _filter_mkfs 2>$tmp.mkfs
cat $tmp.mkfs >>$seqres.full
_scratch_mount
populate
allocate
status=0
exit