From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yinghai Lu Subject: Re: [RFC PATCH 6/6] sparc64: use early_res and nobootmem Date: Wed, 10 Mar 2010 15:01:41 -0800 Message-ID: <4B9824D5.8090906@kernel.org> References: <4B9818CE.7090809@kernel.org> <20100310.141757.95833226.davem@davemloft.net> <4B981DBD.2060303@kernel.org> <20100310.143602.266086944.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:52368 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757385Ab0CJXD1 (ORCPT ); Wed, 10 Mar 2010 18:03:27 -0500 In-Reply-To: <20100310.143602.266086944.davem@davemloft.net> Sender: linux-arch-owner@vger.kernel.org List-ID: To: David Miller Cc: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org On 03/10/2010 02:36 PM, David Miller wrote: > From: Yinghai Lu > Date: Wed, 10 Mar 2010 14:31:25 -0800 > >> they are array based. >> >> 1. memmap is not changed after get it from firmware, >> 2. early_res at first is static array, later it will be relocated to another position if the array is not big enough. > > LMB could do this too with minor modifications. > > Simply make the lmb.memory and lmb.reserved be pointers, and initially > they point into the static array(s). > > Later the pointers can be repositioned to point to dynamically > allocated memory. > > So please, for the third time, please show me how LMB with some minor > modifications is not able to satisfy your needs. you could do it, need to duplicate some functions from early_res.c and fw_memmap.c esp __check_and_double_early_res, get_free_all_memory_range YH