From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83D16C28CC0 for ; Wed, 29 May 2019 12:22:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5DFA521872 for ; Wed, 29 May 2019 12:22:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726881AbfE2MWx (ORCPT ); Wed, 29 May 2019 08:22:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:35692 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726791AbfE2MWx (ORCPT ); Wed, 29 May 2019 08:22:53 -0400 Received: from oasis.local.home (unknown [12.156.218.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 74BF92081C; Wed, 29 May 2019 12:22:51 +0000 (UTC) Date: Wed, 29 May 2019 08:22:48 -0400 From: Steven Rostedt To: Joel Fernandes Cc: Daniel Bristot de Oliveira , linux-kernel@vger.kernel.org, williams@redhat.com, daniel@bristot.me, Ingo Molnar , Peter Zijlstra , Thomas Gleixner , "Paul E. McKenney" , Matthias Kaehlcke , Frederic Weisbecker , Yangtao Li , Tommaso Cucinotta Subject: Re: [RFC 1/3] softirq: Use preempt_latency_stop/start to trace preemption Message-ID: <20190529082248.76bb7a6c@oasis.local.home> In-Reply-To: <20190529093056.GA146079@google.com> References: <20190529093056.GA146079@google.com> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 29 May 2019 05:30:56 -0400 Joel Fernandes wrote: > Yes, I think so. Also this patch changes CALLER_ADDR0 passed to the > tracepoint because there's one more level of a non-inlined function call > in the call chain right? Very least the changelog should document this > change in functional behavior, IMO. This sounds more like a break in behavior not a functional change. I guess moving it to a header and making it a static __always_inline should be fine though. -- Steve