Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer core and image format patches

# gpg: Signature made Fri Jun 12 16:08:53 2015 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (25 commits)
  block: Fix reopen flag inheritance
  block: Add BlockDriverState.inherits_from
  block: Add list of children to BlockDriverState
  queue.h: Add QLIST_FIX_HEAD_PTR()
  block: Drain requests before swapping nodes in bdrv_swap()
  block: Move flag inheritance to bdrv_open_inherit()
  block: Use QemuOpts in bdrv_open_common()
  block: Use macro for cache option names
  vmdk: Use bdrv_open_image()
  quorum: Use bdrv_open_image()
  check-qdict: Test cases for new functions
  qdict: Add qdict_{set,copy}_default()
  qdict: Add qdict_array_entries()
  iotests: Add tests for overriding BDRV_O_PROTOCOL
  block: driver should override flags in bdrv_open()
  block: Change bitmap truncate conditional to assertion
  block: record new size in bdrv_dirty_bitmap_truncate
  raw-posix: Fix .bdrv_co_get_block_status() for unaligned image size
  vmdk: Use vmdk_find_index_in_cluster everywhere
  vmdk: Fix index_in_cluster calculation in vmdk_co_get_block_status
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

11 files changed, 172 insertions, 6 deletions

diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index 0360f37..4a8055b 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -194,7 +194,6 @@ echo === Specifying the protocol layer ===
 echo
 
 run_qemu -drive file="$TEST_IMG",file.driver=file
-run_qemu -drive file="$TEST_IMG",file.driver=qcow2
 
 echo
 echo === Leaving out required options ===
diff --git a/tests/qemu-iotests/051.out b/tests/qemu-iotests/051.out
index 2890eac..652dd63 100644
--- a/tests/qemu-iotests/051.out
+++ b/tests/qemu-iotests/051.out
@@ -253,9 +253,6 @@ Testing: -drive file=TEST_DIR/t.qcow2,file.driver=file
 QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
-Testing: -drive file=TEST_DIR/t.qcow2,file.driver=qcow2
-QEMU_PROG: -drive file=TEST_DIR/t.qcow2,file.driver=qcow2: Block format 'qcow2' used by device '' doesn't support the option 'filename'
-
 
 === Leaving out required options ===
 
diff --git a/tests/qemu-iotests/103 b/tests/qemu-iotests/103
index ccab551..fa9a3c1 100755
--- a/tests/qemu-iotests/103
+++ b/tests/qemu-iotests/103
@@ -93,6 +93,16 @@ $QEMU_IO -c "open -o l2-cache-size=1M,refcount-cache-size=0.25M $TEST_IMG" \
          -c 'read -P 42 0 64k' \
     | _filter_qemu_io
 
+echo
+echo '=== Testing minimal L2 cache and COW ==='
+echo
+
+$QEMU_IMG snapshot -c foo "$TEST_IMG"
+# This requires a COW operation, which accesses two L2 tables simultaneously
+# (COW source and destination), so there must be enough space in the cache to
+# place both tables there (and qemu should not crash)
+$QEMU_IO -c "open -o cache-size=0 $TEST_IMG" -c 'write 0 64k' | _filter_qemu_io
+
 # success, all done
 echo '*** done'
 rm -f $seq.full
diff --git a/tests/qemu-iotests/103.out b/tests/qemu-iotests/103.out
index ee705b0..d05f49f 100644
--- a/tests/qemu-iotests/103.out
+++ b/tests/qemu-iotests/103.out
@@ -26,4 +26,9 @@ read 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 read 65536/65536 bytes at offset 0
 64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+=== Testing minimal L2 cache and COW ===
+
+wrote 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 *** done
diff --git a/tests/qemu-iotests/119 b/tests/qemu-iotests/119
new file mode 100755
index 0000000..9a11f1b
--- /dev/null
+++ b/tests/qemu-iotests/119
@@ -0,0 +1,60 @@
+#!/bin/bash
+#
+# NBD test case for overriding BDRV_O_PROTOCOL by explicitly specifying
+# a driver
+#
+# Copyright (C) 2015 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
+owner=mreitz@redhat.com
+
+seq="$(basename $0)"
+echo "QA output created by $seq"
+
+here="$PWD"
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+	_cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt raw
+_supported_proto nbd
+_supported_os Linux
+
+_make_test_img 64M
+# This should not crash
+echo "{'execute': 'qmp_capabilities'}
+      {'execute': 'human-monitor-command',
+       'arguments': {'command-line': 'qemu-io drv \"read -P 0 0 64k\"'}}
+      {'execute': 'quit'}" \
+    | $QEMU -drive id=drv,if=none,file="$TEST_IMG",driver=nbd \
+            -qmp stdio -nodefaults \
+    | _filter_qmp | _filter_qemu_io
+
+# success, all done
+echo
+echo '*** done'
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/119.out b/tests/qemu-iotests/119.out
new file mode 100644
index 0000000..58e7114
--- /dev/null
+++ b/tests/qemu-iotests/119.out
@@ -0,0 +1,11 @@
+QA output created by 119
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+QMP_VERSION
+{"return": {}}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": ""}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
+
+*** done
diff --git a/tests/qemu-iotests/120 b/tests/qemu-iotests/120
new file mode 100755
index 0000000..9f13078
--- /dev/null
+++ b/tests/qemu-iotests/120
@@ -0,0 +1,65 @@
+#!/bin/bash
+#
+# Non-NBD test cases for overriding BDRV_O_PROTOCOL by explicitly
+# specifying a driver
+#
+# Copyright (C) 2015 Red Hat, Inc.
+#
+# 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; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will 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, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
+owner=mreitz@redhat.com
+
+seq="$(basename $0)"
+echo "QA output created by $seq"
+
+here="$PWD"
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+	_cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt generic
+_supported_proto file
+_supported_os Linux
+
+_make_test_img 64M
+
+echo "{'execute': 'qmp_capabilities'}
+      {'execute': 'human-monitor-command',
+       'arguments': {'command-line': 'qemu-io drv \"write -P 42 0 64k\"'}}
+      {'execute': 'quit'}" \
+    | $QEMU -qmp stdio -nodefaults \
+            -drive id=drv,if=none,file="$TEST_IMG",driver=raw,file.driver=$IMGFMT \
+    | _filter_qmp | _filter_qemu_io
+$QEMU_IO -c 'read -P 42 0 64k' "$TEST_IMG" | _filter_qemu_io
+
+$QEMU_IO_PROG -c 'read -P 42 0 64k' \
+    "json:{'driver': 'raw', 'file': {'driver': '$IMGFMT', 'file': {'filename': '$TEST_IMG'}}}" \
+    | _filter_qemu_io
+
+# success, all done
+echo
+echo '*** done'
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/120.out b/tests/qemu-iotests/120.out
new file mode 100644
index 0000000..9131b1b
--- /dev/null
+++ b/tests/qemu-iotests/120.out
@@ -0,0 +1,15 @@
+QA output created by 120
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+QMP_VERSION
+{"return": {}}
+wrote 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+{"return": ""}
+{"return": {}}
+{"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN"}
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+read 65536/65536 bytes at offset 0
+64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+*** done
diff --git a/tests/qemu-iotests/124 b/tests/qemu-iotests/124
index 3ee78cd..8abce2f 100644
--- a/tests/qemu-iotests/124
+++ b/tests/qemu-iotests/124
@@ -125,7 +125,7 @@ class TestIncrementalBackup(iotests.QMPTestCase):
 
         event = self.vm.event_wait(name="BLOCK_JOB_COMPLETED",
                                    match={'data': {'device': kwargs['device']}})
-        self.assertIsNotNone(event)
+        self.assertNotEqual(event, None)
 
         try:
             failure = self.dictpath(event, 'data/error')
diff --git a/tests/qemu-iotests/128 b/tests/qemu-iotests/128
index 249a865..e2a0f2f 100755
--- a/tests/qemu-iotests/128
+++ b/tests/qemu-iotests/128
@@ -29,6 +29,7 @@ tmp=/tmp/$$
 status=1	# failure is the default!
 
 devname="eiodev$$"
+sudo=""
 
 _setup_eiodev()
 {
@@ -37,6 +38,7 @@ _setup_eiodev()
 		echo "0 $((1024 * 1024 * 1024 / 512)) error" | \
 			$cmd dmsetup create "$devname" 2>/dev/null
 		if [ "$?" -eq 0 ]; then
+			sudo="$cmd"
 			return
 		fi
 	done
@@ -74,7 +76,7 @@ TEST_IMG="/dev/mapper/$devname"
 echo
 echo "== reading from error device =="
 # Opening image should succeed but the read operation should fail
-$QEMU_IO --format "$IMGFMT" --nocache -c "read 0 65536" "$TEST_IMG" | _filter_qemu_io
+$sudo $QEMU_IO --format "$IMGFMT" --nocache -c "read 0 65536" "$TEST_IMG" | _filter_qemu_io
 
 # success, all done
 echo "*** done"
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 0b817ca..4597fc1 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -121,6 +121,8 @@
 114 rw auto quick
 115 rw auto
 116 rw auto quick
+119 rw auto quick
+120 rw auto quick
 121 rw auto
 122 rw auto
 123 rw auto quick