Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265800AbUIIXhH (ORCPT ); Thu, 9 Sep 2004 19:37:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265051AbUIIXhG (ORCPT ); Thu, 9 Sep 2004 19:37:06 -0400 Received: from ozlabs.org ([203.10.76.45]:56777 "EHLO ozlabs.org") by vger.kernel.org with ESMTP id S266880AbUIIXgl (ORCPT ); Thu, 9 Sep 2004 19:36:41 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16704.59668.899674.868174@cargo.ozlabs.ibm.com> Date: Fri, 10 Sep 2004 09:36:52 +1000 From: Paul Mackerras To: William Lee Irwin III Cc: Anton Blanchard , Zwane Mwaikambo , Linux Kernel , Andrew Morton , Linus Torvalds , Matt Mackall , "Nakajima, Jun" Subject: Re: [PATCH][5/8] Arch agnostic completely out of line locks / ppc64 In-Reply-To: <20040909220040.GM3106@holomorphy.com> References: <16703.60725.153052.169532@cargo.ozlabs.ibm.com> <20040909154259.GE11358@krispykreme> <20040909171954.GW3106@holomorphy.com> <16704.52551.846184.630652@cargo.ozlabs.ibm.com> <20040909220040.GM3106@holomorphy.com> X-Mailer: VM 7.18 under Emacs 21.3.1 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 685 Lines: 16 William Lee Irwin III writes: > The semantics of profile_pc() have never included backtracing through > scheduling primitives, so I'd say just report __preempt_spin_lock(). I disagree that __preempt_spin_lock is a scheduling primitive, or at least I disagree that it is primarily a scheduling primitive. We don't spend vast amounts of time spinning in any of the other scheduling primitives; if we have to wait we call schedule(). Paul. - 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/