| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2015, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 238 |
| # |
| # See what happens if we DIO CoW blocks 2-4 of a page's worth of blocks when |
| # the surrounding blocks vary between unwritten/regular/delalloc/hole. |
| # |
| # This test is dependent on the system page size, so we cannot use md5 in |
| # the golden output; we can only compare to a check file. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick clone |
| |
| # Override the default cleanup function. |
| _cleanup() |
| { |
| cd / |
| rm -rf $tmp.* $testdir |
| } |
| |
| # Import common functions. |
| . ./common/filter |
| . ./common/reflink |
| |
| # real QA test starts here |
| _require_scratch_reflink |
| _require_xfs_io_command "falloc" |
| _require_odirect |
| |
| pagesz=$(getconf PAGE_SIZE) |
| blksz=$((pagesz / 4)) |
| |
| echo "Format and mount" |
| _scratch_mkfs_blocksized $blksz > $seqres.full 2>&1 |
| _scratch_mount >> $seqres.full 2>&1 |
| |
| testdir=$SCRATCH_MNT/test-$seq |
| mkdir $testdir |
| |
| real_blksz=$(_get_file_block_size $testdir) |
| test $real_blksz != $blksz && _notrun "Failed to format with small blocksize." |
| |
| runtest() { |
| echo "runtest $1 $2" |
| b2=$1 |
| b4=$2 |
| dir=$3 |
| |
| echo "Create the original files" |
| mkdir -p $dir |
| _pwrite_byte 0x61 0 $pagesz $dir/file1 >> $seqres.full |
| |
| $XFS_IO_PROG -f -c "truncate $pagesz" $dir/file2 >> $seqres.full |
| $XFS_IO_PROG -f -c "truncate $pagesz" $dir/file2.chk >> $seqres.full |
| |
| case $b2 in |
| "regular") |
| _pwrite_byte 0x61 $blksz $blksz $dir/file2 >> $seqres.full |
| _pwrite_byte 0x61 $blksz $blksz $dir/file2.chk >> $seqres.full |
| ;; |
| "unwritten") |
| $XFS_IO_PROG -f -c "falloc -k $blksz $blksz" $dir/file2 >> $seqres.full |
| _pwrite_byte 0x00 $blksz $blksz $dir/file2.chk >> $seqres.full |
| ;; |
| "hole") |
| ;; |
| esac |
| |
| case $b4 in |
| "regular") |
| _pwrite_byte 0x61 $((blksz * 3)) $blksz $dir/file2 >> $seqres.full |
| _pwrite_byte 0x61 $((blksz * 3)) $blksz $dir/file2.chk >> $seqres.full |
| ;; |
| "unwritten") |
| $XFS_IO_PROG -f -c "falloc -k $((blksz * 3)) $blksz" $dir/file2 >> $seqres.full |
| _pwrite_byte 0x00 $((blksz * 3)) $blksz $dir/file2.chk >> $seqres.full |
| ;; |
| "hole") |
| ;; |
| esac |
| |
| _reflink_range $dir/file1 $blksz $dir/file2 $((blksz * 2)) $blksz >> $seqres.full |
| _pwrite_byte 0x61 $((blksz * 2)) $blksz $dir/file2.chk >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "Compare files" |
| ! cmp -s $dir/file1 $dir/file2 || _fail "file1 and file2 don't match." |
| cmp -s $dir/file2 $dir/file2.chk || _fail "file2 and file2.chk don't match." |
| |
| echo "CoW and unmount" |
| if [ $b2 = "delalloc" ]; then |
| _pwrite_byte 0x61 $blksz $blksz $dir/file2 >> $seqres.full |
| _pwrite_byte 0x61 $blksz $blksz $dir/file2.chk >> $seqres.full |
| fi |
| |
| if [ $b4 = "delalloc" ]; then |
| _pwrite_byte 0x61 $((blksz * 3)) $blksz $dir/file2 >> $seqres.full |
| _pwrite_byte 0x61 $((blksz * 3)) $blksz $dir/file2.chk >> $seqres.full |
| fi |
| |
| $XFS_IO_PROG -d -f -c "pwrite -S 0x63 $blksz $((blksz * 3))" $dir/file2 >> $seqres.full |
| $XFS_IO_PROG -f -c "pwrite -S 0x63 $blksz $((blksz * 3))" $dir/file2.chk >> $seqres.full |
| _scratch_cycle_mount |
| |
| echo "Compare files" |
| ! cmp -s $dir/file1 $dir/file2 || _fail "file1 and file2 don't match." |
| cmp -s $dir/file2 $dir/file2.chk || _fail "file2 and file2.chk don't match." |
| } |
| |
| runtest regular delalloc "$testdir/r-d" |
| runtest regular unwritten "$testdir/r-u" |
| runtest regular hole "$testdir/r-h" |
| runtest regular regular "$testdir/r-r" |
| |
| runtest hole delalloc "$testdir/h-d" |
| runtest hole unwritten "$testdir/h-u" |
| runtest hole hole "$testdir/h-h" |
| runtest hole regular "$testdir/h-r" |
| |
| runtest unwritten delalloc "$testdir/u-d" |
| runtest unwritten unwritten "$testdir/u-u" |
| runtest unwritten hole "$testdir/u-h" |
| runtest unwritten regular "$testdir/u-r" |
| |
| runtest delalloc delalloc "$testdir/d-d" |
| runtest delalloc unwritten "$testdir/d-u" |
| runtest delalloc hole "$testdir/d-h" |
| runtest delalloc regular "$testdir/d-r" |
| |
| # success, all done |
| status=0 |
| exit |