Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932265AbVLPOOi (ORCPT ); Fri, 16 Dec 2005 09:14:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932274AbVLPOOi (ORCPT ); Fri, 16 Dec 2005 09:14:38 -0500 Received: from clock-tower.bc.nu ([81.2.110.250]:35257 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S932265AbVLPOOh (ORCPT ); Fri, 16 Dec 2005 09:14:37 -0500 Subject: Re: [PATCH] ia64: disable preemption in udelay() From: Alan Cox To: "Luck, Tony" Cc: hawkes@sgi.com, Tony Luck , Andrew Morton , linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, Jack Steiner , Keith Owens , Dimitri Sivanich In-Reply-To: <20051216010440.GA9886@agluck-lia64.sc.intel.com> References: <20051214232526.9039.15753.sendpatchset@tomahawk.engr.sgi.com> <20051215225040.GA9086@agluck-lia64.sc.intel.com> <20051216010440.GA9886@agluck-lia64.sc.intel.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Fri, 16 Dec 2005 14:14:28 +0000 Message-Id: <1134742468.28761.38.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 555 Lines: 13 On Iau, 2005-12-15 at 17:04 -0800, Luck, Tony wrote: > Being out-of-line would reduce accuracy, but this would only be > significant when the sleep is for a very small number of microseconds. Even then its a predicted branch to code that will probably be in cache so really ought to have no material impact. - 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/