From: Jiang Liu <liuj97@gmail.com>
Date: Wed, 20 Mar 2013 04:07:17 +0000 (+1100)
Subject: mm,kexec: use common help functions to free reserved pages
X-Git-Tag: next-20130320~2^2~373
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a6de673e0f50667398fd42e1ff10cba088e20c92;p=karo-tx-linux.git

mm,kexec: use common help functions to free reserved pages

Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/kernel/kexec.c b/kernel/kexec.c
index bddd3d7a74b6..be9539770f82 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1118,12 +1118,8 @@ void __weak crash_free_reserved_phys_range(unsigned long begin,
 {
 	unsigned long addr;
 
-	for (addr = begin; addr < end; addr += PAGE_SIZE) {
-		ClearPageReserved(pfn_to_page(addr >> PAGE_SHIFT));
-		init_page_count(pfn_to_page(addr >> PAGE_SHIFT));
-		free_page((unsigned long)__va(addr));
-		totalram_pages++;
-	}
+	for (addr = begin; addr < end; addr += PAGE_SIZE)
+		free_reserved_page(pfn_to_page(addr >> PAGE_SHIFT));
 }
 
 int crash_shrink_memory(unsigned long new_size)