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=-0.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 ECC54C433E0 for ; Mon, 22 Jun 2020 10:15:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C633E20675 for ; Mon, 22 Jun 2020 10:15:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="XZmXIctw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727079AbgFVKPj (ORCPT ); Mon, 22 Jun 2020 06:15:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726660AbgFVKPi (ORCPT ); Mon, 22 Jun 2020 06:15:38 -0400 Received: from merlin.infradead.org (unknown [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B5D8FC061795 for ; Mon, 22 Jun 2020 03:15:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Subject:Cc:To:From:Date:Message-ID: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=2RjTqVx5JWKQDiDk1go5O08KBZuLHTrJZdO+ffoqORs=; b=XZmXIctwNA4j8p/VK6gkF6Lpkg VsjApmEIxDl9erX9MR9GUKKQsmT8McHyqkS04B7GRfg0xXEZ/2wEFYk54fsfSRUPVnC21GSNIQiqS Nr9o5I9YU2sivkQPKM9uOBLrxCn2i7rXhrU2t8HBJ98k/1d85TZiuZe9AbEa6MtJQsrKmx8Eql+G2 ZOMqYS62aAnUl9/EkKQ064QoZV+92sTJkTWYXeMnv4Y2RrwIaLvVViM/xR9wNlg2m6xO9KdBGfTR5 VcFtoc7tg7qYrAHnlhapkLaRtE0MkGRh11egDlw9K4O8lHKO6UVEtjxrLIhxT3lPnJiERXCUsDQ5p zSMRjlpA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jnJTj-0008JL-UK; Mon, 22 Jun 2020 10:15:04 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 46A8F303CE9; Mon, 22 Jun 2020 12:15:02 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 2418729994FCF; Mon, 22 Jun 2020 12:15:02 +0200 (CEST) Message-ID: <20200622100122.477087977@infradead.org> User-Agent: quilt/0.66 Date: Mon, 22 Jun 2020 12:01:22 +0200 From: Peter Zijlstra To: mingo@kernel.org, tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, paulmck@kernel.org, frederic@kernel.org, peterz@infradead.org, torvalds@linux-foundation.org, hch@lst.de Subject: [PATCH -v2 0/5] sched: TTWU, IPI and stuff Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Like earlier, Paul's rcutorture is fixed by #1, but now it actually makes sense and I can explain how it happens. Therefore this patch is _much_ better than the last one :-) I was going to push 1-3 into sched/urgent, #3 removes the horrible BUG_ON crap in kernel/smp.c and trades them for slightly less horrible unions. I was planning on keeping #4,#5 back for the next round, but if Linus wants them now, that can certainly be arranged too. I have some further work on top that creates and uses irq_work_queue_remote() to replace many (hopefully all) smp_call_function_single_async() users so we can get rid of that head-ache, but those need to cook a little more. (#5 has 'trivial' conflicts with patches from hch that are targeted at the next round)