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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:19:07 +0800 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 21:16:16 +0800 |
| commit | 117fe7fe50393a9f725b03b5be6094a18f97c18f (patch) | |
| tree | aceac210ee801f4b34e9e00d916aa2ea10aac8f5 | |
| parent | eb4a503060f7d6dfaaf168c14606b4b13f5cf12c (diff) | |
| download | xfstests-dev-117fe7fe50393a9f725b03b5be6094a18f97c18f.tar.gz | |
generic: add mmap CoW test for holes&source extents
Ensuring that copy on write in mmap mode to the source file when the CoW range
covers holes and regular shared blocks.
(MMAP version of generic/291,292)
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/665 | 62 | ||||
| -rw-r--r-- | tests/generic/665.out | 12 |
2 files changed, 74 insertions, 0 deletions
diff --git a/tests/generic/665 b/tests/generic/665 new file mode 100755 index 0000000000..6f21aaff8d --- /dev/null +++ b/tests/generic/665 @@ -0,0 +1,62 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 665 +# +# Ensuring that copy on write in mmap mode to the source file when the +# CoW range covers holes and regular shared blocks. +# (MMAP version of generic/291,292) +# - Create two files. +# - Truncate the first file. +# - Write the odd blocks of the first file. +# - Reflink the odd blocks of the first file into the second file. +# - mmap CoW the first file across the halfway mark, starting with the +# regular extent. +# - Check that the files are now different where we say they're different. +# +. ./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" + +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_holes $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=$((filesize / 2)) +mmapsz=$((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 +exit diff --git a/tests/generic/665.out b/tests/generic/665.out new file mode 100644 index 0000000000..751e824703 --- /dev/null +++ b/tests/generic/665.out @@ -0,0 +1,12 @@ +QA output created by 665 +Format and mount +Create the original files +Compare files +b8a8a88d4c143f79900c4b4e79aa3e37 SCRATCH_MNT/test-665/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-665/file3 +b8a8a88d4c143f79900c4b4e79aa3e37 SCRATCH_MNT/test-665/file1.chk +mmap CoW across the transition +Compare files +e8cf59797f0b3758c8878c368bb4cf7e SCRATCH_MNT/test-665/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-665/file3 +e8cf59797f0b3758c8878c368bb4cf7e SCRATCH_MNT/test-665/file1.chk |