From 890bc119748f41e595064b43cc4e947b3bba62ab Mon Sep 17 00:00:00 2001 From: Koen De Wit Date: Mon, 20 Jan 2014 13:56:36 +1100 Subject: [PATCH] btrfs: sparse copy of a directory tree on btrfs 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 Signed-off-by: Eric Sandeen Signed-off-by: Dave Chinner --- tests/btrfs/027 | 107 ++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/027.out | 25 +++++++++++ tests/btrfs/group | 1 + 3 files changed, 133 insertions(+) create mode 100644 tests/btrfs/027 create mode 100644 tests/btrfs/027.out diff --git a/tests/btrfs/027 b/tests/btrfs/027 new file mode 100644 index 00000000..d76bb0ff --- /dev/null +++ b/tests/btrfs/027 @@ -0,0 +1,107 @@ +#! /bin/bash +# FS QA Test No. 027 +# +# 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) 2014, 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 -c 'pwrite -S 0x61 0 9000' $TESTDIR1/original/file1 \ + >> $seqres.full 2>&1 +$XFS_IO_PROG -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/027.out b/tests/btrfs/027.out new file mode 100644 index 00000000..7b7e3bb6 --- /dev/null +++ b/tests/btrfs/027.out @@ -0,0 +1,25 @@ +QA output created by 027 +Create the original files and reflink dirs +Original md5sums: +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/original/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/original/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 +Overwrite original/file1 and original/subdir/file2 with new data +md5sums now: +260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-027/original/file1 +b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-027/original/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy1/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 +Overwrite copy1/file1 and copy1/subdir/file2 with new data +md5sums now: +260f6785c0537fd12582dcae28a3c1a9 TEST_DIR/test-027/original/file1 +b8d91fb600f6f2191f2ba66665374860 TEST_DIR/test-027/original/subdir/file2 +b20229a003e3985c4b0e6806abcd6642 TEST_DIR/test-027/copy1/file1 +b815b24069db14e0a3a07169fd563e93 TEST_DIR/test-027/copy1/subdir/file2 +42d69d1a6d333a7ebdf64792a555e392 TEST_DIR/test-027/copy2/file1 +ca390545f0aedb54b808d6128c56a7dd TEST_DIR/test-027/copy2/subdir/file2 diff --git a/tests/btrfs/group b/tests/btrfs/group index b6073b7f..a6318496 100644 --- a/tests/btrfs/group +++ b/tests/btrfs/group @@ -29,3 +29,4 @@ 024 auto quick 025 auto quick 026 auto quick +027 auto quick -- 2.39.5