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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-11-09 11:21:07 +0800 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2021-11-14 22:07:39 +0800 |
| commit | 13596038f1ddab8edb0ee20fb67f7a51e8949c98 (patch) | |
| tree | 27575841e6482944c5e5fe47994b5d57b2cee718 | |
| parent | 0108519ae1b0ce842881e5054fc2838daef1a8b4 (diff) | |
| download | xfstests-dev-13596038f1ddab8edb0ee20fb67f7a51e8949c98.tar.gz | |
generic: add mmap CoW test for 'unwritten' case
Check what happens if we MMAP CoW blocks 2-4 of a page's worth of blocks when
the second block is a unwritten block. (MMAP version of generic/216,217)
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
| -rwxr-xr-x | tests/generic/652 | 69 | ||||
| -rw-r--r-- | tests/generic/652.out | 6 |
2 files changed, 75 insertions, 0 deletions
diff --git a/tests/generic/652 b/tests/generic/652 new file mode 100755 index 0000000000..42af175f6b --- /dev/null +++ b/tests/generic/652 @@ -0,0 +1,69 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 652 +# +# See what happens if we MMAP CoW blocks 2-4 of a page's worth of blocks when +# the second block is a unwritten block. (MMAP version of generic/216,217) +# +# 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." + +echo "Create the original files" +_pwrite_byte 0x61 0 $pagesz $testdir/file1 >> $seqres.full + +$XFS_IO_PROG -f -c "truncate $pagesz" $testdir/file2 >> $seqres.full +$XFS_IO_PROG -f -c "truncate $pagesz" $testdir/file2.chk >> $seqres.full + +$XFS_IO_PROG -f -c "falloc -k $blksz $blksz" $testdir/file2 >> $seqres.full +_pwrite_byte 0x00 $blksz $blksz $testdir/file2.chk >> $seqres.full + +$XFS_IO_PROG -f -c "falloc -k $((blksz * 3)) $blksz" $testdir/file2 >> $seqres.full +_pwrite_byte 0x00 $((blksz * 3)) $blksz $testdir/file2.chk >> $seqres.full + +_reflink_range $testdir/file1 $blksz $testdir/file2 $((blksz * 2)) $blksz >> $seqres.full +_pwrite_byte 0x61 $((blksz * 2)) $blksz $testdir/file2.chk >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +cmp -s $testdir/file1 $testdir/file2 && echo "file1 and file2 should not match." +cmp -s $testdir/file2 $testdir/file2.chk || echo "file2 and file2.chk don't match." + +echo "CoW and unmount" +$XFS_IO_PROG -f -c "mmap 0 $pagesz" \ + -c "mwrite -S 0x63 $((blksz + 17)) $((blksz * 3 - 34))" $testdir/file2 >> $seqres.full +$XFS_IO_PROG -f -c "mmap 0 $pagesz" \ + -c "mwrite -S 0x63 $((blksz + 17)) $((blksz * 3 - 34))" $testdir/file2.chk >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +cmp -s $testdir/file1 $testdir/file2 && echo "file1 and file2 should not match." +cmp -s $testdir/file2 $testdir/file2.chk || echo "file2 and file2.chk don't match." + +# success, all done +status=0 +exit diff --git a/tests/generic/652.out b/tests/generic/652.out new file mode 100644 index 0000000000..398bdb980c --- /dev/null +++ b/tests/generic/652.out @@ -0,0 +1,6 @@ +QA output created by 652 +Format and mount +Create the original files +Compare files +CoW and unmount +Compare files |