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_PASS,URIBL_BLOCKED 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 6EB2CC64EB1 for ; Fri, 7 Dec 2018 13:41:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 304DB20989 for ; Fri, 7 Dec 2018 13:41:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 304DB20989 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726077AbeLGNlX (ORCPT ); Fri, 7 Dec 2018 08:41:23 -0500 Received: from mail.kernel.org ([198.145.29.99]:38526 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725998AbeLGNlX (ORCPT ); Fri, 7 Dec 2018 08:41:23 -0500 Received: from vmware.local.home (ip-64-134-232-35.public.wayport.net [64.134.232.35]) (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 6460E208E7; Fri, 7 Dec 2018 13:41:21 +0000 (UTC) Date: Fri, 7 Dec 2018 08:41:18 -0500 From: Steven Rostedt To: Peter Zijlstra Cc: Jiri Olsa , Arnaldo Carvalho de Melo , lkml , Ingo Molnar , Namhyung Kim , Alexander Shishkin , Thomas Gleixner , "Luis Claudio R. Goncalves" , ldv@altlinux.org, esyr@redhat.com, Frederic Weisbecker Subject: Re: [PATCH 1/8] perf: Allow to block process in syscall tracepoints Message-ID: <20181207072701.5bc564c7@vmware.local.home> In-Reply-To: <20181207085839.GC2237@hirez.programming.kicks-ass.net> References: <20181205160509.1168-1-jolsa@kernel.org> <20181205160509.1168-2-jolsa@kernel.org> <20181206081028.GE4234@hirez.programming.kicks-ass.net> <20181206083400.GA13675@hirez.programming.kicks-ass.net> <20181206131946.2c47f556@vmware.local.home> <20181207085839.GC2237@hirez.programming.kicks-ass.net> X-Mailer: Claws Mail 3.15.1 (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 Fri, 7 Dec 2018 09:58:39 +0100 Peter Zijlstra wrote: > These patches give no justification *what*so*ever* for why we're doing > ugly arse things like this. And why does this, whatever this is, need to > be done in perf? > > IOW, what problem are we solving ? I guess the cover letter should have had a link (or copy) of this: http://lkml.kernel.org/r/20181128134700.212ed035@gandalf.local.home -- Steve