Filipe David Borba Manana
2014-May-31 01:17 UTC
[PATCH] xfstests: add test for btrfs cloning with file holes
Regression test for the btrfs ioctl clone operation when the source range
contains hole(s) and the FS has the NO_HOLES feature enabled (file holes
don't need file extent items in the btree to represent them).
This issue is fixed by the following linux kernel btrfs patch:
Btrfs: fix clone to deal with holes when NO_HOLES feature is enabled
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
---
tests/btrfs/055 | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/055.out | 43 ++++++++++++++++++++++
tests/btrfs/group | 1 +
3 files changed, 144 insertions(+)
create mode 100755 tests/btrfs/055
create mode 100644 tests/btrfs/055.out
diff --git a/tests/btrfs/055 b/tests/btrfs/055
new file mode 100755
index 0000000..7241b66
--- /dev/null
+++ b/tests/btrfs/055
@@ -0,0 +1,100 @@
+#! /bin/bash
+# FS QA Test No. btrfs/055
+#
+# Regression test for the btrfs ioctl clone operation when the source range
+# contains hole(s) and the FS has the NO_HOLES feature enabled (file holes
+# don't need file extent items in the btree to represent them).
+#
+# This issue is fixed by the following linux kernel btrfs patch:
+#
+# Btrfs: fix clone to deal with holes when NO_HOLES feature is enabled
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2014 Filipe Manana. 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 $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ rm -fr $tmp
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_btrfs_cloner
+_need_to_be_root
+
+rm -f $seqres.full
+
+test_btrfs_clone_with_holes()
+{
+ _scratch_mkfs "$1" >/dev/null 2>&1
+ _scratch_mount $MOUNT_OPTIONS
+
+ # Create a file with 4 extents and 1 hole, all with a size of 8Kb each.
+ $XFS_IO_PROG -f -c "pwrite -S 0x01 -b 8192 0 8192" $SCRATCH_MNT/foo
\
+ | _filter_xfs_io
+ sync
+ $XFS_IO_PROG -c "pwrite -S 0x02 -b 8192 8192 8192" $SCRATCH_MNT/foo
\
+ | _filter_xfs_io
+ sync
+ # After the following write we get a hole in the range [16384, 24576[
+ $XFS_IO_PROG -c "pwrite -S 0x04 -b 8192 24576 8192" $SCRATCH_MNT/foo
\
+ | _filter_xfs_io
+ sync
+ $XFS_IO_PROG -c "pwrite -S 0x05 -b 8192 32768 8192" $SCRATCH_MNT/foo
\
+ | _filter_xfs_io
+ sync
+
+ # Clone destination file, 1 extent of 64kb.
+ $XFS_IO_PROG -f -c "pwrite -S 0xff -b 64536 0 64536"
$SCRATCH_MNT/bar \
+ | _filter_xfs_io
+ sync
+
+ # Clone 2nd extent, 8Kb hole and 3rd extent of foo into bar.
+ $CLONER_PROG -s 8192 -d 0 -l 24576 $SCRATCH_MNT/foo $SCRATCH_MNT/bar
+
+ # Verify both extents and the hole were cloned.
+ od -t x1 $SCRATCH_MNT/bar
+
+ # Verify that there are no consistency errors.
+ _check_scratch_fs
+}
+
+echo "Testing without the NO_HOLES feature"
+test_btrfs_clone_with_holes
+
+_scratch_unmount
+
+echo "Testing with the NO_HOLES feature enabled"
+test_btrfs_clone_with_holes "-O no-holes"
+
+status=0
+exit
diff --git a/tests/btrfs/055.out b/tests/btrfs/055.out
new file mode 100644
index 0000000..faa0477
--- /dev/null
+++ b/tests/btrfs/055.out
@@ -0,0 +1,43 @@
+QA output created by 055
+Testing without the NO_HOLES feature
+wrote 8192/8192 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 8192/8192 bytes at offset 8192
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 8192/8192 bytes at offset 24576
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 8192/8192 bytes at offset 32768
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 64536/64536 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+0000000 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
+*
+0020000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+*
+0040000 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
+*
+0060000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+*
+0176020 ff ff ff ff ff ff ff ff
+0176030
+Testing with the NO_HOLES feature enabled
+wrote 8192/8192 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 8192/8192 bytes at offset 8192
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 8192/8192 bytes at offset 24576
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 8192/8192 bytes at offset 32768
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 64536/64536 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+0000000 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02
+*
+0020000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+*
+0040000 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
+*
+0060000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+*
+0176020 ff ff ff ff ff ff ff ff
+0176030
diff --git a/tests/btrfs/group b/tests/btrfs/group
index b668485..2c10c5b 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -57,3 +57,4 @@
052 auto quick
053 auto quick
054 auto quick
+055 auto quick
--
1.9.1
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