diff mbox series

[v2,12/16] generic: add direct-io CoW test for mixed&source extents

Message ID 20211125074752.274176-13-ruansy.fnst@fujitsu.com (mailing list archive)
State New, archived
Headers show
Series generic: add some mmap CoW tests | expand

Commit Message

Shiyang Ruan Nov. 25, 2021, 7:47 a.m. UTC 
Ensuring that copy on write in buffered mode works when the CoW
range originally covers multiple extents, mixed with reflinked, unwritten,
hole, regular and delalloc blocks.

Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
---
 tests/generic/911     | 66 +++++++++++++++++++++++++++++++++++++++++++
 tests/generic/911.out | 12 ++++++++
 2 files changed, 78 insertions(+)
 create mode 100755 tests/generic/911
 create mode 100644 tests/generic/911.out

Comments

Darrick J. Wong Dec. 11, 2021, 12:45 a.m. UTC | #1 
On Thu, Nov 25, 2021 at 03:47:48PM +0800, Shiyang Ruan wrote:
> Ensuring that copy on write in buffered mode works when the CoW
> range originally covers multiple extents, mixed with reflinked, unwritten,
> hole, regular and delalloc blocks.
> 
> Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com>
> ---
>  tests/generic/911     | 66 +++++++++++++++++++++++++++++++++++++++++++
>  tests/generic/911.out | 12 ++++++++
>  2 files changed, 78 insertions(+)
>  create mode 100755 tests/generic/911
>  create mode 100644 tests/generic/911.out
> 
> diff --git a/tests/generic/911 b/tests/generic/911
> new file mode 100755
> index 00000000..57de8754
> --- /dev/null
> +++ b/tests/generic/911
> @@ -0,0 +1,66 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# FS QA Test No. 911
> +#
> +# Ensuring that copy on write in direct-io mode works when the CoW
> +# range originally covers multiple extents, mixed with reflinked, unwritten,
> +# hole, regular and delalloc blocks.
> +#   - Create a file with the following repeating sequence of blocks:
> +#     1. reflinked
> +#     2. unwritten
> +#     3. hole
> +#     4. regular block
> +#     5. delalloc
> +#   - directio 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 punch
> +
> +# Import common functions.
> +. ./common/filter
> +. ./common/reflink
> +
> +# real QA test starts here
> +_require_scratch_reflink
> +_require_xfs_io_command "falloc"
> +_require_xfs_io_command "fpunch"
> +_require_cp_reflink
> +_require_odirect

_requires_command $FILEFRAG_PROG filefrag

Otherwise, this looks like it's ready to go.

--D

> +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_rainbow $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 $testdir/file1.chk | _filter_scratch
> +
> +echo "directio CoW across the transition"
> +cowoff=$((filesize / 4))
> +cowsz=$((filesize / 2))
> +_sweave_reflink_rainbow_delalloc $blksz $nr $testdir/file1 >> $seqres.full
> +# now cow
> +$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $cowsz $cowoff $cowsz" $testdir/file1 >> $seqres.full
> +_pwrite_byte 0x63 $cowoff $cowsz $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
> diff --git a/tests/generic/911.out b/tests/generic/911.out
> new file mode 100644
> index 00000000..e098fe3c
> --- /dev/null
> +++ b/tests/generic/911.out
> @@ -0,0 +1,12 @@
> +QA output created by 911
> +Format and mount
> +Create the original files
> +Compare files
> +6366fd359371414186688a0ef6988893  SCRATCH_MNT/test-911/file1
> +bdbcf02ee0aa977795a79d25fcfdccb1  SCRATCH_MNT/test-911/file3
> +6366fd359371414186688a0ef6988893  SCRATCH_MNT/test-911/file1.chk
> +directio CoW across the transition
> +Compare files
> +26aa3a0749b867ec58363c8539ee5471  SCRATCH_MNT/test-911/file1
> +bdbcf02ee0aa977795a79d25fcfdccb1  SCRATCH_MNT/test-911/file3
> +26aa3a0749b867ec58363c8539ee5471  SCRATCH_MNT/test-911/file1.chk
> -- 
> 2.34.0
> 
> 
>
diff mbox series

Patch

diff --git a/tests/generic/911 b/tests/generic/911
new file mode 100755
index 00000000..57de8754
--- /dev/null
+++ b/tests/generic/911
@@ -0,0 +1,66 @@ 
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# FS QA Test No. 911
+#
+# Ensuring that copy on write in direct-io mode works when the CoW
+# range originally covers multiple extents, mixed with reflinked, unwritten,
+# hole, regular and delalloc blocks.
+#   - Create a file with the following repeating sequence of blocks:
+#     1. reflinked
+#     2. unwritten
+#     3. hole
+#     4. regular block
+#     5. delalloc
+#   - directio 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 punch
+
+# Import common functions.
+. ./common/filter
+. ./common/reflink
+
+# real QA test starts here
+_require_scratch_reflink
+_require_xfs_io_command "falloc"
+_require_xfs_io_command "fpunch"
+_require_cp_reflink
+_require_odirect
+
+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_rainbow $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 $testdir/file1.chk | _filter_scratch
+
+echo "directio CoW across the transition"
+cowoff=$((filesize / 4))
+cowsz=$((filesize / 2))
+_sweave_reflink_rainbow_delalloc $blksz $nr $testdir/file1 >> $seqres.full
+# now cow
+$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b $cowsz $cowoff $cowsz" $testdir/file1 >> $seqres.full
+_pwrite_byte 0x63 $cowoff $cowsz $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
diff --git a/tests/generic/911.out b/tests/generic/911.out
new file mode 100644
index 00000000..e098fe3c
--- /dev/null
+++ b/tests/generic/911.out
@@ -0,0 +1,12 @@ 
+QA output created by 911
+Format and mount
+Create the original files
+Compare files
+6366fd359371414186688a0ef6988893  SCRATCH_MNT/test-911/file1
+bdbcf02ee0aa977795a79d25fcfdccb1  SCRATCH_MNT/test-911/file3
+6366fd359371414186688a0ef6988893  SCRATCH_MNT/test-911/file1.chk
+directio CoW across the transition
+Compare files
+26aa3a0749b867ec58363c8539ee5471  SCRATCH_MNT/test-911/file1
+bdbcf02ee0aa977795a79d25fcfdccb1  SCRATCH_MNT/test-911/file3
+26aa3a0749b867ec58363c8539ee5471  SCRATCH_MNT/test-911/file1.chk