Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751163AbWIHV2U (ORCPT ); Fri, 8 Sep 2006 17:28:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751167AbWIHV2U (ORCPT ); Fri, 8 Sep 2006 17:28:20 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:206 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S1751163AbWIHV2T (ORCPT ); Fri, 8 Sep 2006 17:28:19 -0400 Subject: Re: [PATCH -rt] use SA_NODELAY for XScale PMU interrupts From: Arjan van de Ven To: Kevin Hilman Cc: Ingo Molnar , Thomas Gleixner , linux-kernel@vger.kernel.org In-Reply-To: <4501C2FE.40109@mvista.com> References: <4501C2FE.40109@mvista.com> Content-Type: text/plain Organization: Intel International BV Date: Fri, 08 Sep 2006 23:27:49 +0200 Message-Id: <1157750869.30730.137.camel@laptopd505.fenrus.org> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 755 Lines: 19 On Fri, 2006-09-08 at 12:22 -0700, Kevin Hilman wrote: > In the XScale oprofile support, the performance monitoring unit (PMU) > triggers interrupts and the ISR reads out the performance data. These > ISRs are currently set to SA_INTERRUPT. In order to get accurate > performance and profiling data under PREEMPT_RT, these should use > SA_NODELAY. The functions called by this ISR are limited to > drivers/oprofile functions. > > Patch against 2.6.18-rt8 hmm I thought the SA_ flags were deprecated ??? - 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/