block: Ensure consistent bitmap function prototypes

We often don't need the BlockDriverState for functions
that operate on bitmaps. Remove it.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1429314609-29776-15-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/blockdev.c b/blockdev.c
index 5905946..5eaf77e 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2072,7 +2072,7 @@
                    name);
         goto out;
     }
-    bdrv_dirty_bitmap_make_anon(bs, bitmap);
+    bdrv_dirty_bitmap_make_anon(bitmap);
     bdrv_release_dirty_bitmap(bs, bitmap);
 
  out: