linux-kernel - [PATCH v2, part1 12/29] mm/m68k: use common help functions to free reserved pages

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Message-Id: <1362896833-21104-13-git-send-email-jiang.liu@huawei.com>
Date:	Sun, 10 Mar 2013 14:26:55 +0800
From:	Jiang Liu <liuj97@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>
Cc:	Jiang Liu <jiang.liu@...wei.com>,
	Wen Congyang <wency@...fujitsu.com>,
	Maciej Rutecki <maciej.rutecki@...il.com>,
	Chris Clayton <chris2553@...glemail.com>,
	"Rafael J . Wysocki" <rjw@...k.pl>, Mel Gorman <mgorman@...e.de>,
	Minchan Kim <minchan@...nel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	Jianguo Wu <wujianguo@...wei.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v2, part1 12/29] mm/m68k: use common help functions to free reserved pages

Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
---
 arch/m68k/mm/init.c |   24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index afd8106f..b5c1ab1 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -110,18 +110,7 @@ void __init paging_init(void)
 void free_initmem(void)
 {
 #ifndef CONFIG_MMU_SUN3
-	unsigned long addr;
-
-	addr = (unsigned long) __init_begin;
-	for (; addr < ((unsigned long) __init_end); addr += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(addr));
-		init_page_count(virt_to_page(addr));
-		free_page(addr);
-		totalram_pages++;
-	}
-	pr_notice("Freeing unused kernel memory: %luk freed (0x%x - 0x%x)\n",
-		(addr - (unsigned long) __init_begin) >> 10,
-		(unsigned int) __init_begin, (unsigned int) __init_end);
+	free_initmem_default(0);
 #endif /* CONFIG_MMU_SUN3 */
 }
 
@@ -213,15 +202,6 @@ void __init mem_init(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	int pages = 0;
-	for (; start < end; start += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(start));
-		init_page_count(virt_to_page(start));
-		free_page(start);
-		totalram_pages++;
-		pages++;
-	}
-	pr_notice("Freeing initrd memory: %dk freed\n",
-		pages << (PAGE_SHIFT - 10));
+	free_reserved_area(start, end, 0, "initrd");
 }
 #endif
-- 
1.7.9.5

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