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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 2BB99C388F9 for ; Fri, 23 Oct 2020 10:26:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB85E2225F for ; Fri, 23 Oct 2020 10:26:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ZMi22j+z" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S462389AbgJWK0V (ORCPT ); Fri, 23 Oct 2020 06:26:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S462193AbgJWKZO (ORCPT ); Fri, 23 Oct 2020 06:25:14 -0400 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9899AC0613D2 for ; Fri, 23 Oct 2020 03:25:14 -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=vUJMYzKjoiu+2eZIhnJKfp3/PqFT+oYykzDIiYMipmc=; b=ZMi22j+zSNhyZGStX9wcayN2EN 4wUyydRClc+f8oSPD47+rNHILXrXUqLhJVXQPiIoG6my4xWV3W5wpLTnnRmpgbc8oY6oi1s8LWCEY 3R05XUNtQus4vdLKhM1Vl4usepJZVuZYXMekwaNcwVnJaxY0aKjBL8RqdgyFVAARO3I1FM4J0reA1 uSg6uDz0A9Aqz+J5VuhtMxZ13ETxiyG2RhUaA/Gulnoo2Dtj1ezN4Hadr1bvNaYI5MhPvlQxeLvoj 45iYdxconXBAkqovAzyGwGNzm5kEv6cBah/375EcuZYEGAZtXYyq54th8ZckoRJbTaqfeXeeJh0BP vDxciHOQ==; 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 1kVuFn-0003Ac-Nv; Fri, 23 Oct 2020 10:24:59 +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 6416A305C10; Fri, 23 Oct 2020 12:24:56 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 31C9829DDA657; Fri, 23 Oct 2020 12:24:56 +0200 (CEST) Message-ID: <20201023101158.088940906@infradead.org> User-Agent: quilt/0.66 Date: Fri, 23 Oct 2020 12:11:58 +0200 From: Peter Zijlstra To: tglx@linutronix.de, mingo@kernel.org Cc: linux-kernel@vger.kernel.org, bigeasy@linutronix.de, qais.yousef@arm.com, swood@redhat.com, peterz@infradead.org, valentin.schneider@arm.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vincent.donnefort@arm.com, tj@kernel.org, ouwen210@hotmail.com Subject: [PATCH v4 00/19] sched: Migrate disable support Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, The fourth version of migrate_disable() for PREEMPT_RT. Two changes since last time: - fixes !SMP builds (bigeasy) - TLA+ validation of migrate_disable() vs sched_setaffinity() (valsch) Esp. that latter resulted in significant changes to patch #10. Huge thanks to Valentin. --- fs/proc/array.c | 4 include/linux/cpuhotplug.h | 1 include/linux/cpumask.h | 6 include/linux/preempt.h | 69 +++ include/linux/sched.h | 5 include/linux/sched/hotplug.h | 2 include/linux/stop_machine.h | 5 include/trace/events/sched.h | 12 kernel/cpu.c | 9 kernel/sched/core.c | 925 +++++++++++++++++++++++++++++++++--------- kernel/sched/cpudeadline.c | 4 kernel/sched/cpupri.c | 4 kernel/sched/deadline.c | 47 +- kernel/sched/rt.c | 81 ++- kernel/sched/sched.h | 59 ++ kernel/stop_machine.c | 23 - kernel/workqueue.c | 4 lib/cpumask.c | 18 lib/dump_stack.c | 2 lib/smp_processor_id.c | 5 20 files changed, 1056 insertions(+), 229 deletions(-)