From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932286AbXDXJ7k (ORCPT ); Tue, 24 Apr 2007 05:59:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161532AbXDXJ7k (ORCPT ); Tue, 24 Apr 2007 05:59:40 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:50190 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932286AbXDXJ7k convert rfc822-to-8bit (ORCPT ); Tue, 24 Apr 2007 05:59:40 -0400 Date: Tue, 24 Apr 2007 18:58:57 +0900 From: Yasunori Goto To: mel@skynet.ie (Mel Gorman) Subject: Re: [PATCH]Fix parsing kernelcore boot option for ia64 Cc: Andrew Morton , tony.luck@intel.com, Linux Kernel ML In-Reply-To: <20070423183637.GA11982@skynet.ie> References: <20070423183246.GA11841@skynet.ie> <20070423183637.GA11982@skynet.ie> X-Mailer-Plugin: BkASPil for Becky!2 Ver.2.068 Message-Id: <20070424183847.FD98.Y-GOTO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 8BIT X-Mailer: Becky! ver. 2.27 [ja] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > Subject: Check zone boundaries when freeing bootmem > Zone boundaries do not have to be aligned to MAX_ORDER_NR_PAGES. Hmm. I don't understand here yet... Could you explain more? This issue occurs only when ZONE_MOVABLE is specified. If its boundary is aligned to MAX_ORDER automatically, I guess user will not mind it. >>From memory hotplug view, I prefer section size alignment to make simple code. :-P > However, > during boot, there is an implicit assumption that they are aligned to a > BITS_PER_LONG boundary when freeing pages as quickly as possible. This > patch checks the zone boundaries when freeing pages from the bootmem allocator. Anyway, the patch works well. Bye. -- Yasunori Goto