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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:18:59 +0800 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 20:57:45 +0800 |
| commit | b94d2fa60e1a979399eda96825f7b6d524a9d30a (patch) | |
| tree | f07f7af519e07afd42615a9b88c5349494231a91 | |
| parent | 924922639321433722deb771ca26d1a9962f38a2 (diff) | |
| download | xfstests-dev-b94d2fa60e1a979399eda96825f7b6d524a9d30a.tar.gz | |
generic: add mmap CoW test for regular&destination extents
Ensuring that copy on write in mmap mode works when the CoW range originally
covers multiple extents, some regular, some not.
(MMAP version of generic/197,196)
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/658 | 59 | ||||
| -rw-r--r-- | tests/generic/658.out | 12 |
2 files changed, 71 insertions, 0 deletions
diff --git a/tests/generic/658 b/tests/generic/658 new file mode 100755 index 0000000000..a296f88b38 --- /dev/null +++ b/tests/generic/658 @@ -0,0 +1,59 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 658 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some regular, some not. +# (MMAP version of generic/197,196) +# - Create two files. +# - Reflink the odd blocks of the first file into the second file. +# - 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 + +# 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)) +_weave_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 $testdir/file3.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((filesize / 4)) +cowsz=$((filesize / 2)) +mmapsz=$((cowoff + cowsz)) +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file3 >> $seqres.full +_mwrite_byte 0x63 $cowoff $cowsz $mmapsz $testdir/file3.chk >> $seqres.full +_scratch_cycle_mount + +echo "Compare files" +md5sum $testdir/file1 | _filter_scratch +md5sum $testdir/file3 | _filter_scratch +md5sum $testdir/file3.chk | _filter_scratch + +# success, all done +status=0 +exit diff --git a/tests/generic/658.out b/tests/generic/658.out new file mode 100644 index 0000000000..b22282dac6 --- /dev/null +++ b/tests/generic/658.out @@ -0,0 +1,12 @@ +QA output created by 658 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-658/file1 +d3959a68638c50af07f0258e032cb554 SCRATCH_MNT/test-658/file3 +d3959a68638c50af07f0258e032cb554 SCRATCH_MNT/test-658/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-658/file1 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-658/file3 +55968a95dfc0120df4e8485576514320 SCRATCH_MNT/test-658/file3.chk |