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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:19:05 +0800 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 21:11:15 +0800 |
| commit | 0d9bd77550bd807baa03f454424005be7a7fe3da (patch) | |
| tree | fb998fad71cad040659f9472f01126be21f2d3f1 | |
| parent | 4599d1700f93ad28aa59c8d1dc67e37a87573ca1 (diff) | |
| download | xfstests-dev-0d9bd77550bd807baa03f454424005be7a7fe3da.tar.gz | |
generic: add mmap CoW test for regular&source extents
Ensuring that copy on write in mmap mode to the source file when the
CoW range covers regular unshared and regular shared blocks. (MMAP
version of generic/284,287)
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/663 | 60 | ||||
| -rw-r--r-- | tests/generic/663.out | 12 |
2 files changed, 72 insertions, 0 deletions
diff --git a/tests/generic/663 b/tests/generic/663 new file mode 100755 index 0000000000..dcd8c86173 --- /dev/null +++ b/tests/generic/663 @@ -0,0 +1,60 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 663 +# +# Ensuring that copy on write in mmap mode to the source file when the +# CoW range covers regular unshared and regular shared blocks. +# (MMAP version of generic/284,287) +# - Create two files. +# - 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_regular $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/663.out b/tests/generic/663.out new file mode 100644 index 0000000000..367b70f46b --- /dev/null +++ b/tests/generic/663.out @@ -0,0 +1,12 @@ +QA output created by 663 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-663/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-663/file3 +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-663/file1.chk +mmap CoW across the transition +Compare files +2dc2b131303b2f70ddb480778caac8b7 SCRATCH_MNT/test-663/file1 +ce2023f765eba19677517c511886d5c9 SCRATCH_MNT/test-663/file3 +2dc2b131303b2f70ddb480778caac8b7 SCRATCH_MNT/test-663/file1.chk |