Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932076AbVLPCNI (ORCPT ); Thu, 15 Dec 2005 21:13:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932079AbVLPCNI (ORCPT ); Thu, 15 Dec 2005 21:13:08 -0500 Received: from omx3-ext.sgi.com ([192.48.171.25]:15325 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S932076AbVLPCNG (ORCPT ); Thu, 15 Dec 2005 21:13:06 -0500 Message-ID: <00b201c601e6$30c87ff0$d6069aa3@johnhaonw7lw1r> From: "John Hawkes" To: "Lee Revell" , "Zwane Mwaikambo" Cc: "Luck, Tony" , "Tony Luck" , "Andrew Morton" , , , "Jack Steiner" , "Keith Owens" , "Dimitri Sivanich" References: <20051214232526.9039.15753.sendpatchset@tomahawk.engr.sgi.com> <20051215225040.GA9086@agluck-lia64.sc.intel.com> <1134698636.12086.222.camel@mindpipe> Subject: Re: [PATCH] ia64: disable preemption in udelay() Date: Thu, 15 Dec 2005 18:12:39 -0800 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2670 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 499 Lines: 12 From: "Lee Revell" > There are 10 drivers that udelay(10000) or more and a TON that > udelay(1000). Turning those all into 1ms+ non preemptible sections will > be very bad. What about 100usec non-preemptible sections? John Hawkes - 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/