From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by e3.ny.us.ibm.com (8.12.11/8.12.11) with ESMTP id k16JRxfK017015 for ; Mon, 6 Feb 2006 14:27:59 -0500 Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay02.pok.ibm.com (8.12.10/NCO/VERS6.8) with ESMTP id k16JRwWC180544 for ; Mon, 6 Feb 2006 14:27:58 -0500 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.12.11/8.13.3) with ESMTP id k16JRvCu024976 for ; Mon, 6 Feb 2006 14:27:57 -0500 Subject: Re: [RFC] pearing off zone from physical memory layout [0/10] From: Dave Hansen In-Reply-To: <43E307DB.3000903@jp.fujitsu.com> References: <43E307DB.3000903@jp.fujitsu.com> Content-Type: text/plain Date: Mon, 06 Feb 2006 11:27:43 -0800 Message-Id: <1139254063.6189.97.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: KAMEZAWA Hiroyuki Cc: linux-mm List-ID: On Fri, 2006-02-03 at 16:35 +0900, KAMEZAWA Hiroyuki wrote: > This series of patches remove members from zone, which depends on physical > memory layout, zone_start_pfn, spanned_pages, zone_mem_map against 2.6.16-rc1. > > By this, zone's meaning will be changed from "a range of memory to be used > in a same manner" to "a group of memory to be used in a same manner". This looks like pretty good stuff. I especially like that it gets rid of that seqlock that I had to add for memory hotplug. My only concern would be in the increased page_to_pfn() overhead. Any data on that? -- Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org