commit 31dce3ccca98bc9f9eb57f8b08b008edd07661ba
author Kevin Wolf <kwolf@redhat.com> Mon Mar 21 11:30:57 2016 +0100
committer Kevin Wolf <kwolf@redhat.com> Thu May 19 16:45:29 2016 +0200
tree dc0e381967d0135f1bc11beae16efc6b1391c31c
parent f2cd875d54e95f87a4c994cfef082f09b4953aa9

block: throttle-groups: Use BlockBackend pointers internally

As a first step towards moving I/O throttling to the BlockBackend level,
this patch changes all pointers in struct ThrottleGroup from referencing
a BlockDriverState to referencing a BlockBackend.

This change is valid because we made sure that throttling can only be
enabled on BDSes which have a BB attached.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>

tests/test-throttle.c

diff --git a/tests/test-throttle.c b/tests/test-throttle.c
index 77b95d6..beaa2a3 100644
--- a/tests/test-throttle.c
+++ b/tests/test-throttle.c
@@ -20,6 +20,7 @@
 #include "qemu/throttle.h"
 #include "qemu/error-report.h"
 #include "block/throttle-groups.h"
+#include "sysemu/block-backend.h"
 
 static AioContext     *ctx;
 static LeakyBucket    bkt;
@@ -589,9 +590,9 @@
     g_assert(bdrv2->throttle_state == NULL);
     g_assert(bdrv3->throttle_state == NULL);
 
-    throttle_group_register_bs(bdrv1, "bar");
-    throttle_group_register_bs(bdrv2, "foo");
-    throttle_group_register_bs(bdrv3, "bar");
+    throttle_group_register_blk(blk1, "bar");
+    throttle_group_register_blk(blk2, "foo");
+    throttle_group_register_blk(blk3, "bar");
 
     g_assert(bdrv1->throttle_state != NULL);
     g_assert(bdrv2->throttle_state != NULL);
@@ -623,9 +624,9 @@
     throttle_group_get_config(bdrv3, &cfg2);
     g_assert(!memcmp(&cfg1, &cfg2, sizeof(cfg1)));
 
-    throttle_group_unregister_bs(bdrv1);
-    throttle_group_unregister_bs(bdrv2);
-    throttle_group_unregister_bs(bdrv3);
+    throttle_group_unregister_blk(blk1);
+    throttle_group_unregister_blk(blk2);
+    throttle_group_unregister_blk(blk3);
 
     g_assert(bdrv1->throttle_state == NULL);
     g_assert(bdrv2->throttle_state == NULL);