From patchwork Fri May 17 15:45:09 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiang Liu X-Patchwork-Id: 2583461 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 7623FE00E6 for ; Fri, 17 May 2013 15:46:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756152Ab3EQPq1 (ORCPT ); Fri, 17 May 2013 11:46:27 -0400 Received: from mail-pa0-f49.google.com ([209.85.220.49]:39252 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754250Ab3EQPqX (ORCPT ); Fri, 17 May 2013 11:46:23 -0400 Received: by mail-pa0-f49.google.com with SMTP id bi5so3698205pad.36 for ; Fri, 17 May 2013 08:46:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=60z/yx1vtLOWEVzPKoQ65Uo6bsbhmGN9tzm9Bp651rY=; b=jvzTKwDB5jc/A4/PwCH3t7bNB7wzVOEGB2r2hL9lMHVu/6Yim4PzOW+qTWSySsSsSw p+5MPIjBdal3CXrR8+c9QF0uWkJGM571nGkb0RKJsO3MoWoFQ9G1tYMWjEQQdcCRd4/p 8ZOi99DbmTAEbQjCc1scEukT63xQiQqJjiIqOmEpxfjdikvhNA/qOEOq9E1IivsMMiPE qckYPSSMpF1nFy9XGkChAzi/HdnfpbWaWs0SymV4e8Y20hzHYpNF/eBHxVCV/cWHhxUe 0fzb9tnmHmSMzBIdF005FnfVbnsZBp98GnyLr6d1Dt14gPsPABHxzuFsOpFZcvM7MBWe v6Kw== X-Received: by 10.68.106.229 with SMTP id gx5mr38040143pbb.95.1368805583216; Fri, 17 May 2013 08:46:23 -0700 (PDT) Received: from localhost.localdomain ([120.196.98.100]) by mx.google.com with ESMTPSA id dr6sm12699445pac.11.2013.05.17.08.46.17 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 17 May 2013 08:46:22 -0700 (PDT) From: Jiang Liu To: Andrew Morton Cc: Jiang Liu , David Rientjes , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , James Bottomley , Sergei Shtylyov , David Howells , Mark Salter , Jianguo Wu , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Florian Tobias Schandinat , linux-fbdev@vger.kernel.org Subject: [PATCH v7, part3 07/16] mm, acornfb: use free_reserved_area() to simplify code Date: Fri, 17 May 2013 23:45:09 +0800 Message-Id: <1368805518-2634-8-git-send-email-jiang.liu@huawei.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1368805518-2634-1-git-send-email-jiang.liu@huawei.com> References: <1368805518-2634-1-git-send-email-jiang.liu@huawei.com> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Use common help function free_reserved_area() to simplify code. Signed-off-by: Jiang Liu Cc: Florian Tobias Schandinat Cc: linux-fbdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/video/acornfb.c | 28 ++-------------------------- 1 file changed, 2 insertions(+), 26 deletions(-) diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c index 6488a73..344f2bb 100644 --- a/drivers/video/acornfb.c +++ b/drivers/video/acornfb.c @@ -1188,32 +1188,8 @@ static int acornfb_detect_monitortype(void) static inline void free_unused_pages(unsigned int virtual_start, unsigned int virtual_end) { - int mb_freed = 0; - - /* - * Align addresses - */ - virtual_start = PAGE_ALIGN(virtual_start); - virtual_end = PAGE_ALIGN(virtual_end); - - while (virtual_start < virtual_end) { - struct page *page; - - /* - * Clear page reserved bit, - * set count to 1, and free - * the page. - */ - page = virt_to_page(virtual_start); - ClearPageReserved(page); - init_page_count(page); - free_page(virtual_start); - - virtual_start += PAGE_SIZE; - mb_freed += PAGE_SIZE / 1024; - } - - printk("acornfb: freed %dK memory\n", mb_freed); + free_reserved_area(virtual_start, PAGE_ALIGN(virtual_end), + -1, "acornfb"); } static int acornfb_probe(struct platform_device *dev)