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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:19:11 +0800 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 21:28:42 +0800 |
| commit | 3472f99857df766a4778fb0c8dc06188d4644461 (patch) | |
| tree | 5c231dd57fd303f1c92830fdead7a2ca9561c675 | |
| parent | 644e6bca673420bec97a52b16d1f88ed48ef5d7d (diff) | |
| download | xfstests-dev-3472f99857df766a4778fb0c8dc06188d4644461.tar.gz | |
generic: add mmap CoW test for mixed&source extents
Ensuring that copy on write in mmap mode works when the CoW range
originally covers multiple extents, mixed with reflinked, unwritten,
hole, regular and delalloc blocks.
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/669 | 66 | ||||
| -rw-r--r-- | tests/generic/669.out | 12 |
2 files changed, 78 insertions, 0 deletions
diff --git a/tests/generic/669 b/tests/generic/669 new file mode 100755 index 0000000000..8e744e8945 --- /dev/null +++ b/tests/generic/669 @@ -0,0 +1,66 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 669 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, mixed with reflinked, unwritten, +# hole, regular and delalloc blocks. +# - Create a file with the following repeating sequence of blocks: +# 1. reflinked +# 2. unwritten +# 3. hole +# 4. regular block +# 5. delalloc +# - mmap CoW across the halfway mark, starting with the unwritten extent. +# - Check that the files are now different where we say they're different. +# +. ./common/preamble +_begin_fstest auto quick clone punch + +# Import common functions. +. ./common/filter +. ./common/reflink + +# real QA test starts here +_require_scratch_reflink +_require_scratch_delalloc +_require_xfs_io_command "falloc" +_require_xfs_io_command "fpunch" + +echo "Format and mount" +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount >> $seqres.full 2>&1 + +testdir=$SCRATCH_MNT/test-$seq +mkdir $testdir + +echo "Create the original files" +blksz=65536 +nr=64 +filesize=$((blksz * nr)) +_sweave_reflink_rainbow $blksz $nr $testdir/file1 $testdir/file3 >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file1.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((filesize / 4)) +cowsz=$((filesize / 2)) +_sweave_reflink_rainbow_delalloc $blksz $nr $testdir/file1 >> $seqres.full +# now cow +mmapsz=$((cowoff + cowsz)) +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file1 >> $seqres.full +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file1.chk >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file1.chk | _filter_scratch + +# success, all done +status=0 diff --git a/tests/generic/669.out b/tests/generic/669.out new file mode 100644 index 0000000000..b6d9c05a5a --- /dev/null +++ b/tests/generic/669.out @@ -0,0 +1,12 @@ +QA output created by 669 +Format and mount +Create the original files +Compare files +6366fd359371414186688a0ef6988893 SCRATCH_MNT/test-669/file1 +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-669/file3 +6366fd359371414186688a0ef6988893 SCRATCH_MNT/test-669/file1.chk +mmap CoW across the transition +Compare files +26aa3a0749b867ec58363c8539ee5471 SCRATCH_MNT/test-669/file1 +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-669/file3 +26aa3a0749b867ec58363c8539ee5471 SCRATCH_MNT/test-669/file1.chk |