Merge remote-tracking branch 'mreitz/tags/pull-block-2017-11-17' into queue-block

Block patches for 2.11.0-rc2

# gpg: Signature made Fri Nov 17 18:22:07 2017 CET
# gpg:                using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* mreitz/tags/pull-block-2017-11-17:
  iotests: Make 087 pass without AIO enabled
  block: Make bdrv_next() keep strong references
  qcow2: Fix overly broad madvise()
  qcow2: Refuse to get unaligned offsets from cache
  qcow2: Add bounds check to get_refblock_offset()
  block: Guard against NULL bs->drv
  qcow2: Unaligned zero cluster in handle_alloc()
  qcow2: check_errors are fatal
  qcow2: reject unaligned offsets in write compressed
  iotests: Add test for failing qemu-img commit
  tests: Add check-qobject for equality tests
  iotests: Add test for non-string option reopening
  block: qobject_is_equal() in bdrv_reopen_prepare()
  qapi: Add qobject_is_equal()
  qapi/qlist: Add qlist_append_null() macro
  qapi/qnull: Add own header

Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 9 insertions, 12 deletions

diff --git a/include/qapi/qmp/qobject.h b/include/qapi/qmp/qobject.h
index eab29edd12..38ac68845c 100644
--- a/include/qapi/qmp/qobject.h
+++ b/include/qapi/qmp/qobject.h
@@ -68,6 +68,15 @@ static inline void qobject_incref(QObject *obj)
 }
 
 /**
+ * qobject_is_equal(): Return whether the two objects are equal.
+ *
+ * Any of the pointers may be NULL; return true if both are.  Always
+ * return false if only one is (therefore a QNull object is not
+ * considered equal to a NULL pointer).
+ */
+bool qobject_is_equal(const QObject *x, const QObject *y);
+
+/**
  * qobject_destroy(): Free resources used by the object
  */
 void qobject_destroy(QObject *obj);
@@ -93,16 +102,4 @@ static inline QType qobject_type(const QObject *obj)
     return obj->type;
 }
 
-struct QNull {
-    QObject base;
-};
-
-extern QNull qnull_;
-
-static inline QNull *qnull(void)
-{
-    QINCREF(&qnull_);
-    return &qnull_;
-}
-
 #endif /* QOBJECT_H */