From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Mon, 29 Apr 2013 22:08:53 +0000 (-0700)
Subject: mm, nobootmem: do memset() after memblock_reserve()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=b476e2951fcf7a25574b7b193944b041687f3ed4;p=openwrt%2Fstaging%2Fblogic.git

mm, nobootmem: do memset() after memblock_reserve()

Currently, we do memset() before reserving the area.  This may not cause
any problem, but it is somewhat weird.  So change execution order.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index a31be7a0493b..bdd3fa2fc73b 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -45,9 +45,9 @@ static void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
 	if (!addr)
 		return NULL;
 
+	memblock_reserve(addr, size);
 	ptr = phys_to_virt(addr);
 	memset(ptr, 0, size);
-	memblock_reserve(addr, size);
 	/*
 	 * The min_count is set to 0 so that bootmem allocated blocks
 	 * are never reported as leaks.