[PATCH v2 3/4] xfstests: btrfs/133: add test for incremental send with rmdir applied on wrong name

robbieko
2016-10-28T01:50:03Z

Test that an incremental send operation doesn't work for rmdir
because it uses the wrong name to delete.

This test exercises scenarios used to fail in btrfs and are fixed by
the following patch for the linux kernel:

"Btrfs: incremental send, skip check overwritten if parents' generation are different"

Signed-off-by: Robbie Ko <robbieko@synology.com>
---
tests/btrfs/133 | 119 ++++++++++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/133.out | 2 +
tests/btrfs/group | 1 +
3 files changed, 122 insertions(+)
create mode 100755 tests/btrfs/133
create mode 100644 tests/btrfs/133.out

diff --git a/tests/btrfs/133 b/tests/btrfs/133
new file mode 100755
index 0000000..e516483
--- /dev/null
+++ b/tests/btrfs/133
@@ -0,0 +1,119 @@
+#! /bin/bash
+# FS QA Test No. btrfs/133
+#
+# Test that an incremental send operation doesn't work for rmdir
+# because it uses the wrong name to delete.
+#
+#-----------------------------------------------------------------------
+# Copyright (C) 2016 Synology Inc. All Rights Reserved.
+# Author: Robbie Ko <robbieko@synology.com>
+#
+# 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()
+{
+ cd /
+ rm -fr $send_files_dir
+ rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs btrfs
+_supported_os Linux
+_require_test
+_require_scratch
+_require_fssum
+
+send_files_dir=$TEST_DIR/btrfs-test-$seq
+
+rm -f $seqres.full
+rm -fr $send_files_dir
+mkdir $send_files_dir
+
+_scratch_mkfs >>$seqres.full 2>&1
+_scratch_mount
+
+touch $SCRATCH_MNT/f
+mkdir $SCRATCH_MNT/d1
+mkdir $SCRATCH_MNT/d259_old
+mv $SCRATCH_MNT/d1 $SCRATCH_MNT/d259_old/d1
+
+# Filesystem looks like:
+#
+# . (ino 256)
+# |--- f (ino 257)
+# |
+# |--- d259_old/ (ino 259)
+# | |--- d1/ (ino 258)
+#
+_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
+
+_run_btrfs_util_prog send $SCRATCH_MNT/mysnap1 -f $send_files_dir/1.snap
+
+_scratch_unmount
+_scratch_mkfs >>$seqres.full 2>&1
+_scratch_mount
+mkdir $SCRATCH_MNT/d1
+mkdir $SCRATCH_MNT/dir258
+mkdir $SCRATCH_MNT/dir259
+mv $SCRATCH_MNT/d1 $SCRATCH_MNT/dir259/d1
+
+# Filesystem now looks like:
+#
+# . (ino 256)
+# |--- dir258 (ino 258)
+# |
+# |--- dir259/ (ino 259)
+# | |--- d1/ (ino 257)
+#
+_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
+
+_run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/1.snap
+rm $send_files_dir/1.snap
+
+run_check $FSSUM_PROG -A -f -w $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
+run_check $FSSUM_PROG -A -f -w $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
+
+_run_btrfs_util_prog send $SCRATCH_MNT/mysnap1 -f $send_files_dir/1.snap
+_run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 $SCRATCH_MNT/mysnap2 \
+ -f $send_files_dir/2.snap
+
+# Now recreate the filesystem by receiving both send streams and verify we get
+# the same content that the original filesystem had.
+_scratch_unmount
+_scratch_mkfs >>$seqres.full 2>&1
+_scratch_mount
+
+_run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/1.snap
+run_check $FSSUM_PROG -r $send_files_dir/1.fssum $SCRATCH_MNT/mysnap1
+_run_btrfs_util_prog receive $SCRATCH_MNT -f $send_files_dir/2.snap
+run_check $FSSUM_PROG -r $send_files_dir/2.fssum $SCRATCH_MNT/mysnap2
+
+echo "Silence is golden"
+status=0
+exit
diff --git a/tests/btrfs/133.out b/tests/btrfs/133.out
new file mode 100644
index 0000000..e914d62
--- /dev/null
+++ b/tests/btrfs/133.out
@@ -0,0 +1,2 @@
+QA output created by 133
+Silence is golden
diff --git a/tests/btrfs/group b/tests/btrfs/group
index 1b12382..779caec 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -135,3 +135,4 @@
130 auto clone send
131 auto quick send
132 auto quick send
+133 auto quick send
--
1.9.1