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

Block layer patches

# gpg: Signature made Wed 02 Dec 2015 15:57:35 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  blkdebug: silence warning under qtest
  qcow2: Fix potential qemu-img check crash on 32 bit hosts

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

block/blkdebug.c

@@ -30,6 +30,7 @@
 #include "qapi/qmp/qdict.h"
 #include "qapi/qmp/qint.h"
 #include "qapi/qmp/qstring.h"
+#include "sysemu/qtest.h"
 
 typedef struct BDRVBlkdebugState {
     int state;
@@ -583,9 +584,13 @@ static void suspend_request(BlockDriverState *bs, BlkdebugRule *rule)
     remove_rule(rule);
     QLIST_INSERT_HEAD(&s->suspended_reqs, &r, next);
 
-    printf("blkdebug: Suspended request '%s'\n", r.tag);
+    if (!qtest_enabled()) {
+        printf("blkdebug: Suspended request '%s'\n", r.tag);
+    }
     qemu_coroutine_yield();
-    printf("blkdebug: Resuming request '%s'\n", r.tag);
+    if (!qtest_enabled()) {
+        printf("blkdebug: Resuming request '%s'\n", r.tag);
+    }
 
     QLIST_REMOVE(&r, next);
     g_free(r.tag);

block/qcow2-refcount.c

@@ -1244,7 +1244,7 @@ fail:
 /* refcount checking functions */
 
 
-static size_t refcount_array_byte_size(BDRVQcow2State *s, uint64_t entries)
+static uint64_t refcount_array_byte_size(BDRVQcow2State *s, uint64_t entries)
 {
     /* This assertion holds because there is no way we can address more than
      * 2^(64 - 9) clusters at once (with cluster size 512 = 2^9, and because