Re: [PATCH] xfstests: btrfs/309: sparse copy of a directory tree on btrfs

[Eric Sandeen <sandeen@sandeen.net>]

This and the other reflink tests should all be:

From: Koen De Wit <koen.de.wit@oracle.com>

to maintain original authorship, sorry I forgot to add that on the patches
in the middle.  Rich, if you can fix that up on commit it'd be
great, unless I need to submit V2s then I can do it.

Koen, I haven't gone over all of them, will try to get the rest
tidied up and resubmitted unless you want to - which would be
just fine!

-Eric

On 5/23/13 11:43 AM, Eric Sandeen wrote:
> # Tests file clone functionality of btrfs ("reflinks") on directory trees.
> #   - Create directory and subdirectory, each having one file
> #   - Create 2 recursive reflinked copies of the tree
> #   - Modify the original files
> #   - Modify one of the copies
> 
> [sandeen: mostly cosmetic changes]
> 
> Signed-off-by: Koen De Wit <koen.de.wit@oracle.com>
> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
> ---
> 
> Originally submitted as
> xfstests: 298: sparse copy of a directory tree on btrfs
> 
> diff --git a/tests/btrfs/309 b/tests/btrfs/309
> new file mode 100755
> index 0000000..b3927ba
> --- /dev/null
> +++ b/tests/btrfs/309
> @@ -0,0 +1,98 @@
> +#! /bin/bash
> +# FS QA Test No. btrfs/309
> +#
> +# Tests file clone functionality of btrfs ("reflinks") on directory trees.
> +#   - Create directory and subdirectory, each having one file
> +#   - Create 2 recursive reflinked copies of the tree
> +#   - Modify the original files
> +#   - Modify one of the copies
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2013, Oracle and/or its affiliates.  All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software Foundation,
> +# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
> +#-----------------------------------------------------------------------
> +
> +seq=`basename $0`
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1    # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> +    cd /
> +    rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. common/rc
> +. common/filter
> +
> +# real QA test starts here
> +_supported_fs btrfs
> +_supported_os Linux
> +
> +_require_xfs_io_fiemap
> +_require_cp_reflink
> +
> +TESTDIR1=$TEST_DIR/test-$seq
> +rm -rf $TESTDIR1
> +mkdir $TESTDIR1
> +
> +_checksum_files() {
> +    for F in original/file1 original/subdir/file2 \
> +                 copy1/file1 copy1/subdir/file2 \
> +                 copy2/file1 copy2/subdir/file2
> +        do
> +            md5sum $TESTDIR1/$F | _filter_test_dir
> +        done
> +}
> +
> +rm -f $seqres.full
> +
> +mkdir $TESTDIR1/original
> +mkdir $TESTDIR1/original/subdir
> +
> +echo "Create the original files and reflink dirs"
> +$XFS_IO_PROG -F -f -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original/file1  >> $seqres.full 2>&1
> +$XFS_IO_PROG -F -f -c 'pwrite -S 0x62 0 11000' $TESTDIR1/original/subdir/file2  >> $seqres.full 2>&1
> +cp --recursive --reflink $TESTDIR1/original $TESTDIR1/copy1
> +cp --recursive --reflink $TESTDIR1/copy1 $TESTDIR1/copy2
> +
> +_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy1/file1
> +_verify_reflink $TESTDIR1/original/subdir/file2 $TESTDIR1/copy1/subdir/file2
> +_verify_reflink $TESTDIR1/original/file1 $TESTDIR1/copy2/file1
> +_verify_reflink $TESTDIR1/original/subdir/file2 $TESTDIR1/copy2/subdir/file2
> +
> +echo "Original md5sums:"
> +_checksum_files
> +
> +echo "Overwrite original/file1 and original/subdir/file2 with new data"
> +$XFS_IO_PROG -c 'pwrite -S 0x63 0 13000' $TESTDIR1/original/file1  >> $seqres.full 2>&1
> +$XFS_IO_PROG -c 'pwrite -S 0x64 5000 1000'  $TESTDIR1/original/subdir/file2 >> $seqres.full 2>&1
> +echo "md5sums now:"
> +_checksum_files
> +
> +echo "Overwrite copy1/file1 and copy1/subdir/file2 with new data"
> +$XFS_IO_PROG -c 'pwrite -S 0x65 0 9000' $TESTDIR1/copy1/file1  >> $seqres.full 2>&1
> +$XFS_IO_PROG -c 'pwrite -S 0x66 5000 25000' $TESTDIR1/copy1/subdir/file2  >> $seqres.full 2>&1
> +echo "md5sums now:"
> +_checksum_files
> +
> +# success, all done
> +status=0
> +exit
> diff --git a/tests/btrfs/309.out b/tests/btrfs/309.out
> new file mode 100644
> index 0000000..93197d8
> --- /dev/null
> +++ b/tests/btrfs/309.out
> @@ -0,0 +1,25 @@
> +QA output created by 309
> +Create the original files and reflink dirs
> +Original md5sums:
> +42d69d1a6d333a7ebdf64792a555e392  TEST_DIR/test-309/original/file1
> +ca390545f0aedb54b808d6128c56a7dd  TEST_DIR/test-309/original/subdir/file2
> +42d69d1a6d333a7ebdf64792a555e392  TEST_DIR/test-309/copy1/file1
> +ca390545f0aedb54b808d6128c56a7dd  TEST_DIR/test-309/copy1/subdir/file2
> +42d69d1a6d333a7ebdf64792a555e392  TEST_DIR/test-309/copy2/file1
> +ca390545f0aedb54b808d6128c56a7dd  TEST_DIR/test-309/copy2/subdir/file2
> +Overwrite original/file1 and original/subdir/file2 with new data
> +md5sums now:
> +260f6785c0537fd12582dcae28a3c1a9  TEST_DIR/test-309/original/file1
> +b8d91fb600f6f2191f2ba66665374860  TEST_DIR/test-309/original/subdir/file2
> +42d69d1a6d333a7ebdf64792a555e392  TEST_DIR/test-309/copy1/file1
> +ca390545f0aedb54b808d6128c56a7dd  TEST_DIR/test-309/copy1/subdir/file2
> +42d69d1a6d333a7ebdf64792a555e392  TEST_DIR/test-309/copy2/file1
> +ca390545f0aedb54b808d6128c56a7dd  TEST_DIR/test-309/copy2/subdir/file2
> +Overwrite copy1/file1 and copy1/subdir/file2 with new data
> +md5sums now:
> +260f6785c0537fd12582dcae28a3c1a9  TEST_DIR/test-309/original/file1
> +b8d91fb600f6f2191f2ba66665374860  TEST_DIR/test-309/original/subdir/file2
> +b20229a003e3985c4b0e6806abcd6642  TEST_DIR/test-309/copy1/file1
> +b815b24069db14e0a3a07169fd563e93  TEST_DIR/test-309/copy1/subdir/file2
> +42d69d1a6d333a7ebdf64792a555e392  TEST_DIR/test-309/copy2/file1
> +ca390545f0aedb54b808d6128c56a7dd  TEST_DIR/test-309/copy2/subdir/file2
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index f24628c..a5bd6aa 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -10,3 +10,4 @@
>  284 auto
>  307 auto quick
>  308 auto quick reflink
> +309 auto quick reflink
> 
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