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=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT 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 D7C16C64EB8 for ; Tue, 9 Oct 2018 10:51:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A79372087D for ; Tue, 9 Oct 2018 10:51:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A79372087D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linutronix.de 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 S1726717AbeJISHq (ORCPT ); Tue, 9 Oct 2018 14:07:46 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:43029 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725947AbeJISHq (ORCPT ); Tue, 9 Oct 2018 14:07:46 -0400 Received: from bigeasy by Galois.linutronix.de with local (Exim 4.80) (envelope-from ) id 1g9pbc-0001ft-Hq; Tue, 09 Oct 2018 12:51:12 +0200 Date: Tue, 9 Oct 2018 12:51:12 +0200 From: Sebastian Andrzej Siewior To: Juri Lelli Cc: peterz@infradead.org, mingo@redhat.com, rostedt@goodmis.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, luca.abeni@santannapisa.it, claudio@evidence.eu.com, tommaso.cucinotta@santannapisa.it, alessio.balsini@gmail.com, bristot@redhat.com, will.deacon@arm.com, andrea.parri@amarulasolutions.com, dietmar.eggemann@arm.com, patrick.bellasi@arm.com, henrik@austad.us, linux-rt-users@vger.kernel.org Subject: Re: [RFD/RFC PATCH 0/8] Towards implementing proxy execution Message-ID: <20181009105112.bhqlrabdt5ae5qmm@linutronix.de> References: <20181009092434.26221-1-juri.lelli@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20181009092434.26221-1-juri.lelli@redhat.com> User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2018-10-09 11:24:26 [+0200], Juri Lelli wrote: > The main concerns I have with the current approach is that, being based > on mutex.c, it's both > > - not linked with futexes > - not involving "legacy" priority inheritance (rt_mutex.c) > > I believe one of the main reasons Peter started this on mutexes is to > have better coverage of potential problems (which I can assure everybody > it had). I'm not yet sure what should we do moving forward, and this is > exactly what I'd be pleased to hear your opinions on. wasn't the idea that once it works to get rid of rt_mutex? Sebastian