Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265191AbUATG0k (ORCPT ); Tue, 20 Jan 2004 01:26:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265193AbUATG0k (ORCPT ); Tue, 20 Jan 2004 01:26:40 -0500 Received: from citrine.spiritone.com ([216.99.193.133]:14558 "EHLO citrine.spiritone.com") by vger.kernel.org with ESMTP id S265191AbUATG0b (ORCPT ); Tue, 20 Jan 2004 01:26:31 -0500 Date: Mon, 19 Jan 2004 22:25:23 -0800 From: "Martin J. Bligh" To: Jack Steiner , jes@trained-monkey.org, linux-kernel@vger.kernel.org cc: Jesse Barnes Subject: Re: [patch] increse MAX_NR_MEMBLKS to same as MAX_NUMNODES on NUMA Message-ID: <11450000.1074579922@[10.10.2.4]> In-Reply-To: <20040120031222.GA15435@sgi.com> References: <4990000.1074542883@[10.10.2.4]> <20040119224535.GA12728@sgi.com> <20040120022452.GA27294@sgi.com> <20040120031222.GA15435@sgi.com> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="==========1815739384==========" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 21775 Lines: 307 --==========1815739384========== Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline > On Mon, Jan 19, 2004 at 06:24:52PM -0800, Jesse Barnes wrote: >> On Mon, Jan 19, 2004 at 04:45:35PM -0600, Jack Steiner wrote: >> > On Mon, Jan 19, 2004 at 12:08:04PM -0800, Martin J. Bligh wrote: >> > > > Since we now support # of CPUs > BITS_PER_LONG with cpumask_t it would >> > > > be nice to be able to support more than BITS_PER_LONG memory blocks. >> > > >> > > Nothing uses them. We're probably better off just removing them altogether. >> > >> > I dont understand. >> > node_memblk[] is used on IA64 in arch/ia64/mm/discontig.c (& other places too). >> >> I think Martin is referring to the memblk_*line() functions and the fact >> that memblks are exported via sysfs to userspace. That API hasn't >> proven very useful so far since it's really waiting for memory hot >> add/remove. Of course, we'll still need structures to support that for >> the low level arch specific discontig code, so any patch that killed >> memblks in sysfs and elsewhere would have to take that into account... >> (In particular, node_memblk[] is filled out by the ACPI SRAT parsing >> code and use for discontig init and physical->node id conversion.) >> >> Jesse > > OK, that makes sense. Could one of you test this patch for me? Probably just a build would do fine. 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