Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 14 Jun 2002 13:37:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 14 Jun 2002 13:37:45 -0400 Received: from gateway-1237.mvista.com ([12.44.186.158]:3573 "EHLO hermes.mvista.com") by vger.kernel.org with ESMTP id ; Fri, 14 Jun 2002 13:37:44 -0400 Subject: Re: [PATCH] 2.4-ac: sparc64 support for O(1) scheduler From: Robert Love To: "David S. Miller" Cc: alan@redhat.com, linux-kernel@vger.kernel.org In-Reply-To: <20020613.212528.08026527.davem@redhat.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.3 (1.0.3-6) Date: 14 Jun 2002 10:32:32 -0700 Message-Id: <1024075953.4799.224.camel@sinai> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2002-06-13 at 21:25, David S. Miller wrote: > Ummm what is with all of those switch_mm() hacks? Is this an attempt > to work around the locking problems? Please don't do that as it is > going to kill performance and having ifdef sparc64 sched.c changes is > ugly to say the least. > > Ingo posted the correct fix to the locking problem with the patch > he posted the other day, that is what should go into the -ac patches. I am explicitly refraining from sending Alan any code that is not well-tested in 2.5 and my machines first. As Ingo's new switch_mm() bits are not even in 2.5 yet, I plan to wait a bit before sending them... (I am currently putting together all the scheduler bits we have been working on for a 2.4-ac patch...) If you like, Alan can hold off on this and take it when the appropriate patches are in. Robert Love - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/