mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Dave Chinner
cf89aed924
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
90 lines
1.9 KiB
Bash
Executable File
90 lines
1.9 KiB
Bash
Executable File
#! /bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
# Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
|
|
#
|
|
# FS QA Test No. 166
|
|
#
|
|
# Test for races or FS corruption when DIO writing to a file that's also
|
|
# the source of a reflink operation.
|
|
#
|
|
seq=`basename $0`
|
|
seqres=$RESULT_DIR/$seq
|
|
echo "QA output created by $seq"
|
|
|
|
here=`pwd`
|
|
tmp=/tmp/$$
|
|
status=1 # failure is the default!
|
|
trap "_cleanup; exit \$status" 0 1 2 3 7 15
|
|
|
|
_cleanup()
|
|
{
|
|
cd /
|
|
rm -rf $tmp.* $finished_file
|
|
wait
|
|
}
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common/rc
|
|
. ./common/filter
|
|
. ./common/reflink
|
|
|
|
# real QA test starts here
|
|
_supported_os Linux
|
|
_require_scratch_reflink
|
|
_require_cp_reflink
|
|
_require_odirect
|
|
|
|
echo "Format and mount"
|
|
_scratch_mkfs > $seqres.full 2>&1
|
|
_scratch_mount >> $seqres.full 2>&1
|
|
|
|
testdir=$SCRATCH_MNT/test-$seq
|
|
finished_file=/tmp/finished
|
|
do_snapshot=/tmp/snapshot
|
|
rm -rf $finished_file
|
|
mkdir $testdir
|
|
|
|
loops=1024
|
|
nr_loops=$((loops - 1))
|
|
blksz=65536
|
|
|
|
echo "Initialize file"
|
|
echo >> $seqres.full
|
|
_pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full
|
|
_scratch_cycle_mount
|
|
|
|
# Snapshot creator...
|
|
#
|
|
# We rate limit the snapshot creator to one snapshot per full file write. this
|
|
# limits the runtime on slow devices, whilst not substantially reducing the the
|
|
# number of snapshots taken on fast devices.
|
|
snappy() {
|
|
n=0
|
|
while [ ! -e $finished_file ]; do
|
|
if [ ! -e $do_snapshot ]; then
|
|
sleep 0.01
|
|
continue;
|
|
fi
|
|
out="$(_cp_reflink $testdir/file1 $testdir/snap_$n 2>&1)"
|
|
res=$?
|
|
echo "$out" | grep -q "No space left" && break
|
|
test -n "$out" && echo "$out"
|
|
test $res -ne 0 && break
|
|
n=$((n + 1))
|
|
rm -f $do_snapshot
|
|
done
|
|
}
|
|
|
|
echo "Snapshot a file undergoing directio rewrite"
|
|
snappy &
|
|
seq $nr_loops -1 0 | while read i; do
|
|
_pwrite_byte 0x63 $((i * blksz)) $blksz -d $testdir/file1 >> $seqres.full
|
|
touch $do_snapshot
|
|
done
|
|
touch $finished_file
|
|
wait
|
|
|
|
# success, all done
|
|
status=0
|
|
exit
|