linux-kernel - [RFC PATCH v1 04/33] mm/avr32: use common help functions to free reserved pages

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Message-Id: <1362495317-32682-5-git-send-email-jiang.liu@huawei.com>
Date:	Tue,  5 Mar 2013 22:54:47 +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,
	Haavard Skinnemoen <hskinnemoen@...il.com>,
	Hans-Christian Egtvedt <egtvedt@...fundet.no>
Subject: [RFC PATCH v1 04/33] mm/avr32: 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: Haavard Skinnemoen <hskinnemoen@...il.com>
Cc: Hans-Christian Egtvedt <egtvedt@...fundet.no>
---
 arch/avr32/mm/init.c |   24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c
index 2798c2d..e66e840 100644
--- a/arch/avr32/mm/init.c
+++ b/arch/avr32/mm/init.c
@@ -146,34 +146,14 @@ void __init mem_init(void)
 		initsize >> 10);
 }
 
-static inline void free_area(unsigned long addr, unsigned long end, char *s)
-{
-	unsigned int size = (end - addr) >> 10;
-
-	for (; addr < end; addr += PAGE_SIZE) {
-		struct page *page = virt_to_page(addr);
-		ClearPageReserved(page);
-		init_page_count(page);
-		free_page(addr);
-		totalram_pages++;
-	}
-
-	if (size && s)
-		printk(KERN_INFO "Freeing %s memory: %dK (%lx - %lx)\n",
-		       s, size, end - (size << 10), end);
-}
-
 void free_initmem(void)
 {
-	free_area((unsigned long)__init_begin, (unsigned long)__init_end,
-		  "init");
+	free_initmem_default(0);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
-
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	free_area(start, end, "initrd");
+	free_reserved_area(start, end, 0, "initrd");
 }
-
 #endif
-- 
1.7.9.5

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