2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
7 # Test for races or FS corruption when writing to a file that's also
8 # the source of a reflink operation.
11 _begin_fstest auto clone
13 _register_cleanup "_cleanup" BUS
15 # Override the default cleanup function.
19 rm -rf $tmp.* $finished_file
23 # Import common functions.
27 # real QA test starts here
28 _require_scratch_reflink
31 echo "Format and mount"
32 _scratch_mkfs > $seqres.full 2>&1
33 _scratch_mount >> $seqres.full 2>&1
35 testdir=$SCRATCH_MNT/test-$seq
36 finished_file=/tmp/finished
41 nr_loops=$((loops - 1))
44 echo "Initialize file"
46 _pwrite_byte 0x61 0 $((loops * blksz)) $testdir/file1 >> $seqres.full
52 while [ ! -e $finished_file ]; do
53 out="$(_cp_reflink $testdir/file1 $testdir/snap_$n 2>&1)"
55 echo "$out" | grep -q "No space left" && break
56 test -n "$out" && echo "$out"
57 test $res -ne 0 && break
62 echo "Snapshot a file undergoing buffered rewrite"
64 seq $nr_loops -1 0 | while read i; do
65 _pwrite_byte 0x63 $((i * blksz)) $blksz $testdir/file1 >> $seqres.full