linux-kernel - [PATCH v2, part3 05/12] mm/powertv: use common help functions to free reserved pages

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Message-Id: <1363453413-8139-6-git-send-email-jiang.liu@huawei.com>
Date:	Sun, 17 Mar 2013 01:03:26 +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, Ralf Baechle <ralf@...ux-mips.org>,
	linux-mips@...ux-mips.org
Subject: [PATCH v2, part3 05/12] mm/powertv: 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: Ralf Baechle <ralf@...ux-mips.org>
Cc: Jiang Liu <jiang.liu@...wei.com>
Cc: linux-mips@...ux-mips.org
Cc: linux-kernel@...r.kernel.org
---
 arch/mips/powertv/asic/asic_devices.c |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/arch/mips/powertv/asic/asic_devices.c b/arch/mips/powertv/asic/asic_devices.c
index bce1872..746b06d 100644
--- a/arch/mips/powertv/asic/asic_devices.c
+++ b/arch/mips/powertv/asic/asic_devices.c
@@ -529,17 +529,8 @@ EXPORT_SYMBOL(asic_resource_get);
  */
 void platform_release_memory(void *ptr, int size)
 {
-	unsigned long addr;
-	unsigned long end;
-
-	addr = ((unsigned long)ptr + (PAGE_SIZE - 1)) & PAGE_MASK;
-	end = ((unsigned long)ptr + size) & PAGE_MASK;
-
-	for (; addr < end; addr += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(__va(addr)));
-		init_page_count(virt_to_page(__va(addr)));
-		free_page((unsigned long)__va(addr));
-	}
+	free_reserved_area((unsigned long)ptr, (unsigned long)(ptr + size),
+			   -1, NULL);
 }
 EXPORT_SYMBOL(platform_release_memory);
 
-- 
1.7.9.5

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