Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 23 Aug 2002 12:13:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 23 Aug 2002 12:13:29 -0400 Received: from svr-ganmtc-appserv-mgmt.ncf.coxexpress.com ([24.136.46.5]:18447 "EHLO svr-ganmtc-appserv-mgmt.ncf.coxexpress.com") by vger.kernel.org with ESMTP id ; Fri, 23 Aug 2002 12:13:28 -0400 Subject: Re: interrupt handler From: Robert Love To: root@chaos.analogic.com Cc: sanket rathi , linux-kernel@vger.kernel.org In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Mailer: Ximian Evolution 1.0.8 Date: 23 Aug 2002 12:17:10 -0400 Message-Id: <1030119432.863.3674.camel@phantasy> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 543 Lines: 16 On Fri, 2002-08-23 at 08:17, Richard B. Johnson wrote: > Interrupts default to OFF within an interrupt handler. Given this, > why would you use a spin-lock within the ISR on a single-processor > machine? Only the current interrupt handler is disabled... interrupts are normally ON. 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/