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| author | Shiyang Ruan <ruansy.fnst@fujitsu.com> | 2021-12-14 16:19:00 +0800 |
|---|---|---|
| committer | Eryu Guan <guaneryu@gmail.com> | 2021-12-25 20:59:17 +0800 |
| commit | 84b9ed88b6d3a34a55b681e7462a37a918f5bc10 (patch) | |
| tree | 077f96f077a0d3c905635c075b201786b8154bb6 | |
| parent | b94d2fa60e1a979399eda96825f7b6d524a9d30a (diff) | |
| download | xfstests-dev-84b9ed88b6d3a34a55b681e7462a37a918f5bc10.tar.gz | |
generic: add mmap CoW test for unwritten&destination extents
Ensuring that copy on write in mmap mode works when the CoW range
originally covers multiple extents, some unwritten, some not. (MMAP
version of generic/189,188)
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/659 | 59 | ||||
| -rw-r--r-- | tests/generic/659.out | 12 |
2 files changed, 71 insertions, 0 deletions
diff --git a/tests/generic/659 b/tests/generic/659 new file mode 100755 index 0000000000..e42077e2ce --- /dev/null +++ b/tests/generic/659 @@ -0,0 +1,59 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# FS QA Test No. 659 +# +# Ensuring that copy on write in mmap mode works when the CoW +# range originally covers multiple extents, some unwritten, some not. +# (MMAP version of generic/189,188) +# - Create a file and fallocate 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_unwritten $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/659.out b/tests/generic/659.out new file mode 100644 index 0000000000..787e59c821 --- /dev/null +++ b/tests/generic/659.out @@ -0,0 +1,12 @@ +QA output created by 659 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-659/file1 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-659/file3 +fa50dba51826899c372464a153cb2117 SCRATCH_MNT/test-659/file3.chk +mmap CoW across the transition +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-659/file1 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-659/file3 +09101629908f9bdd5d178e7ce20bb1bb SCRATCH_MNT/test-659/file3.chk |