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author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-11-09 11:21:10 +0800 |
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committer | Eryu Guan <guaneryu@gmail.com> | 2021-11-14 22:15:54 +0800 |
commit | 9f8f0e4d5ae00990bac05fbd69a882255bf7bf9f (patch) | |
tree | 1c99b7a4f99b500c5af0102081f5f9e418c5d656 | |
parent | e268739e5e88613e87ea8a1bf7b509418b6d3737 (diff) | |
download | xfstests-dev-9f8f0e4d5ae00990bac05fbd69a882255bf7bf9f.tar.gz |
generic: add mmap CoW test for 'mixed' case
Check what happens if we MMAP CoW blocks 2-4 of a page's worth of blocks when
the surrounding blocks vary between unwritten/regular/delalloc/hole.
(MMAP version of generic/229,238)
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
-rwxr-xr-x | tests/generic/655 | 132 | ||||
-rw-r--r-- | tests/generic/655.out | 62 |
2 files changed, 194 insertions, 0 deletions
diff --git a/tests/generic/655 b/tests/generic/655 new file mode 100755 index 0000000000..ec8366e3a1 --- /dev/null +++ b/tests/generic/655 @@ -0,0 +1,132 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 655 +# +# See what happens if we MMAP CoW blocks 2-4 of a page's worth of blocks when +# the surrounding blocks vary between unwritten/regular/delalloc/hole. +# (MMAP version of generic/229,238) +# +# 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 + +# Import common functions. +. ./common/filter +. ./common/reflink + +# real QA test starts here +_require_scratch_reflink +_require_xfs_io_command "falloc" + +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 && echo "file1 and file2 should not match." + cmp -s $dir/file2 $dir/file2.chk || echo "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 + + # make sure we actually got delalloc block + $FILEFRAG_PROG -v $dir/file2 2>&1 | grep -q delalloc || \ + _notrun "test requires delayed allocation writes" + 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 + + # make sure we actually got delalloc block + $FILEFRAG_PROG -v $dir/file2 2>&1 | grep -q delalloc || \ + _notrun "test requires delayed allocation writes" + fi + + $XFS_IO_PROG -f -c "mmap 0 $pagesz" \ + -c "pwrite -S 0x63 $((blksz + 17)) $((blksz * 3 - 34))" $dir/file2 >> $seqres.full + $XFS_IO_PROG -f -c "mmap 0 $pagesz" \ + -c "pwrite -S 0x63 $((blksz + 17)) $((blksz * 3 - 34))" $dir/file2.chk >> $seqres.full + _scratch_cycle_mount + + echo "Compare files" + cmp -s $dir/file1 $dir/file2 && echo "file1 and file2 should not match." + cmp -s $dir/file2 $dir/file2.chk || echo "file2 and file2.chk don't match." +} + +runtest regular delalloc "$testdir/r-d" +runtest regular unwritten "$testdir/r-u" +runtest regular hole "$testdir/r-h" + +runtest hole delalloc "$testdir/h-d" +runtest hole unwritten "$testdir/h-u" +runtest hole regular "$testdir/h-r" + +runtest unwritten delalloc "$testdir/u-d" +runtest unwritten hole "$testdir/u-h" +runtest unwritten regular "$testdir/u-r" + +runtest delalloc unwritten "$testdir/d-u" +runtest delalloc hole "$testdir/d-h" +runtest delalloc regular "$testdir/d-r" + +# success, all done +status=0 +exit diff --git a/tests/generic/655.out b/tests/generic/655.out new file mode 100644 index 0000000000..7c86df1a2f --- /dev/null +++ b/tests/generic/655.out @@ -0,0 +1,62 @@ +QA output created by 655 +Format and mount +runtest regular delalloc +Create the original files +Compare files +CoW and unmount +Compare files +runtest regular unwritten +Create the original files +Compare files +CoW and unmount +Compare files +runtest regular hole +Create the original files +Compare files +CoW and unmount +Compare files +runtest hole delalloc +Create the original files +Compare files +CoW and unmount +Compare files +runtest hole unwritten +Create the original files +Compare files +CoW and unmount +Compare files +runtest hole regular +Create the original files +Compare files +CoW and unmount +Compare files +runtest unwritten delalloc +Create the original files +Compare files +CoW and unmount +Compare files +runtest unwritten hole +Create the original files +Compare files +CoW and unmount +Compare files +runtest unwritten regular +Create the original files +Compare files +CoW and unmount +Compare files +runtest delalloc unwritten +Create the original files +Compare files +CoW and unmount +Compare files +runtest delalloc hole +Create the original files +Compare files +CoW and unmount +Compare files +runtest delalloc regular +Create the original files +Compare files +CoW and unmount +Compare files |