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author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:19:01 +0800 |
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committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 21:00:53 +0800 |
commit | 0405a0a3941ca4c365e3fbba9801d7d2ff7b9bbe (patch) | |
tree | bed5606adeeb2032b247a43c222498d915b50971 | |
parent | 84b9ed88b6d3a34a55b681e7462a37a918f5bc10 (diff) | |
download | xfstests-dev-0405a0a3941ca4c365e3fbba9801d7d2ff7b9bbe.tar.gz |
generic: add mmap CoW test for holes&destination extents
Ensuring that copy on write in mmap mode works when the CoW range
originally covers multiple extents, some holes, some not. (MMAP
version of generic/191,190)
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/660 | 59 | ||||
-rw-r--r-- | tests/generic/660.out | 12 |
2 files changed, 71 insertions, 0 deletions
diff --git a/tests/generic/660 b/tests/generic/660 new file mode 100755 index 0000000000..7d339aadbc --- /dev/null +++ b/tests/generic/660 @@ -0,0 +1,59 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 660 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some holes, some not. +# (MMAP version of generic/191,190) +# - Create a file and truncate a second file. +# - 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_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 $testdir/file3.chk | _filter_scratch + +echo "mmap CoW across the transition" +cowoff=$((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/660.out b/tests/generic/660.out new file mode 100644 index 0000000000..7c56443935 --- /dev/null +++ b/tests/generic/660.out @@ -0,0 +1,12 @@ +QA output created by 660 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-660/file1 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-660/file3 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-660/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-660/file1 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-660/file3 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-660/file3.chk |