From patchwork Tue Aug 27 09:37:41 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: tangchen X-Patchwork-Id: 2850085 Return-Path: X-Original-To: patchwork-linux-acpi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AE55CBF546 for ; Tue, 27 Aug 2013 09:41:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 84D102049D for ; Tue, 27 Aug 2013 09:41:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B0C3204AB for ; Tue, 27 Aug 2013 09:41:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753437Ab3H0JjQ (ORCPT ); Tue, 27 Aug 2013 05:39:16 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:31516 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753239Ab3H0JjN (ORCPT ); Tue, 27 Aug 2013 05:39:13 -0400 X-IronPort-AV: E=Sophos;i="4.89,967,1367942400"; d="scan'208";a="8317102" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 27 Aug 2013 17:36:03 +0800 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id r7R9d6Gg008015; Tue, 27 Aug 2013 17:39:06 +0800 Received: from G08FNSTD090432.fnst.cn.fujitsu.com ([10.167.226.99]) by fnstmail02.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2013082717370931-987570 ; Tue, 27 Aug 2013 17:37:09 +0800 From: Tang Chen To: rjw@sisk.pl, lenb@kernel.org, tglx@linutronix.de, mingo@elte.hu, hpa@zytor.com, akpm@linux-foundation.org, tj@kernel.org, trenn@suse.de, yinghai@kernel.org, jiang.liu@huawei.com, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, izumi.taku@jp.fujitsu.com, mgorman@suse.de, minchan@kernel.org, mina86@mina86.com, gong.chen@linux.intel.com, vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com, riel@redhat.com, jweiner@redhat.com, prarit@redhat.com, zhangyanfei@cn.fujitsu.com Cc: x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-acpi@vger.kernel.org Subject: [PATCH 04/11] memblock: Introduce memblock_set_current_limit_low() to set lower limit of memblock. Date: Tue, 27 Aug 2013 17:37:41 +0800 Message-Id: <1377596268-31552-5-git-send-email-tangchen@cn.fujitsu.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1377596268-31552-1-git-send-email-tangchen@cn.fujitsu.com> References: <1377596268-31552-1-git-send-email-tangchen@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/08/27 17:37:09, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/08/27 17:37:13, Serialize complete at 2013/08/27 17:37:13 Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Spam-Status: No, score=-9.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Corresponding to memblock_set_current_limit_high(), we introduce memblock_set_current_limit_low() to set the lowest limit for memblock. Signed-off-by: Tang Chen Reviewed-by: Zhang Yanfei --- include/linux/memblock.h | 9 ++++++++- mm/memblock.c | 5 +++++ 2 files changed, 13 insertions(+), 1 deletions(-) diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 40eb18e..cabd685 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -174,6 +174,14 @@ static inline void memblock_dump_all(void) } /** + * memblock_set_current_limit_low - Set the current allocation lower limit to + * allow limiting allocations to what is currently + * accessible during boot + * @limit: New lower limit value (physical address) + */ +void memblock_set_current_limit_low(phys_addr_t limit); + +/** * memblock_set_current_limit_high - Set the current allocation upper limit to * allow limiting allocations to what is currently * accessible during boot @@ -181,7 +189,6 @@ static inline void memblock_dump_all(void) */ void memblock_set_current_limit_high(phys_addr_t limit); - /* * pfn conversion functions * diff --git a/mm/memblock.c b/mm/memblock.c index 0dd5387..54c1c2e 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -989,6 +989,11 @@ void __init_memblock memblock_trim_memory(phys_addr_t align) } } +void __init_memblock memblock_set_current_limit_low(phys_addr_t limit) +{ + memblock.current_limit_low = limit; +} + void __init_memblock memblock_set_current_limit_high(phys_addr_t limit) { memblock.current_limit_high = limit;