Check what happens if we MMAP CoW blocks 2-4 of a page's worth of blocks when the second block is a hole. (MMAP version of generic/218,220) Signed-off-by: Shiyang Ruan <ruansy.fnst@xxxxxxxxxxx> Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx> --- tests/generic/902 | 63 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/902.out | 6 +++++ 2 files changed, 69 insertions(+) create mode 100755 tests/generic/902 create mode 100644 tests/generic/902.out diff --git a/tests/generic/902 b/tests/generic/902 new file mode 100755 index 00000000..3968f1e6 --- /dev/null +++ b/tests/generic/902 @@ -0,0 +1,63 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. xxx +# +# See what happens if we MMAP CoW blocks 2-4 of a page's worth of blocks when +# the second block is a hole. (MMAP version of generic/218,220) +# +# 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 + +_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/902.out b/tests/generic/902.out new file mode 100644 index 00000000..4fb8b6cb --- /dev/null +++ b/tests/generic/902.out @@ -0,0 +1,6 @@ +QA output created by 902 +Format and mount +Create the original files +Compare files +CoW and unmount +Compare files -- 2.33.0
