linux-kernel - [PATCH v2, part2 08/10] mm/SPARC: use free_highmem_page() to free highmem pages into buddy system

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Message-Id: <1362902470-25787-9-git-send-email-jiang.liu@huawei.com>
Date:	Sun, 10 Mar 2013 16:01:08 +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>,
	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,
	"David S. Miller" <davem@...emloft.net>,
	Sam Ravnborg <sam@...nborg.org>, sparclinux@...r.kernel.org
Subject: [PATCH v2, part2 08/10] mm/SPARC: use free_highmem_page() to free highmem pages into buddy system

Use helper function free_highmem_page() to free highmem pages into
the buddy system.

Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Sam Ravnborg <sam@...nborg.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: sparclinux@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 arch/sparc/mm/init_32.c |   12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 13d6fee..6a7eb68 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -282,14 +282,8 @@ static void map_high_region(unsigned long start_pfn, unsigned long end_pfn)
 	printk("mapping high region %08lx - %08lx\n", start_pfn, end_pfn);
 #endif
 
-	for (tmp = start_pfn; tmp < end_pfn; tmp++) {
-		struct page *page = pfn_to_page(tmp);
-
-		ClearPageReserved(page);
-		init_page_count(page);
-		__free_page(page);
-		totalhigh_pages++;
-	}
+	for (tmp = start_pfn; tmp < end_pfn; tmp++)
+		free_higmem_page(pfn_to_page(tmp));
 }
 
 void __init mem_init(void)
@@ -347,8 +341,6 @@ void __init mem_init(void)
 		map_high_region(start_pfn, end_pfn);
 	}
 	
-	totalram_pages += totalhigh_pages;
-
 	codepages = (((unsigned long) &_etext) - ((unsigned long)&_start));
 	codepages = PAGE_ALIGN(codepages) >> PAGE_SHIFT;
 	datapages = (((unsigned long) &_edata) - ((unsigned long)&_etext));
-- 
1.7.9.5

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