From: Fam Zheng <famz@redhat.com>
Date: Mon, 28 Apr 2014 02:59:28 +0000 (+0800)
Subject: mirror: Use DIV_ROUND_UP
X-Git-Tag: TizenStudio_2.0_p2.3.2~208^2~872^2~29
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f0e973601250a3f1579ff77230c419c562958fa8;p=sdk%2Femulator%2Fqemu.git

mirror: Use DIV_ROUND_UP

Although bdrv_getlength() was just called above this, and checked for
error, it is better to just use the value we already get, and use
DIV_ROUND_UP.

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

diff --git a/block/mirror.c b/block/mirror.c
index 36f4f8e..95366ad 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -329,7 +329,7 @@ static void coroutine_fn mirror_run(void *opaque)
         return;
     }
 
-    length = (bdrv_getlength(bs) + s->granularity - 1) / s->granularity;
+    length = DIV_ROUND_UP(s->common.len, s->granularity);
     s->in_flight_bitmap = bitmap_new(length);
 
     /* If we have no backing file yet in the destination, we cannot let