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=-5.8 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 B3DE6C433EF for ; Tue, 14 Sep 2021 06:47:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 882C560FD7 for ; Tue, 14 Sep 2021 06:47:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240286AbhINGsV (ORCPT ); Tue, 14 Sep 2021 02:48:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239015AbhINGsT (ORCPT ); Tue, 14 Sep 2021 02:48:19 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3127AC061574 for ; Mon, 13 Sep 2021 23:47:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=9ZO60xPfR/5kWP62g09zkdcNbotpPgXXz+Skh0BtYgc=; b=pIkyPjf992AX+tJJpT9IP31WB4 ZEU5sLR9wyeNdpksPxkQE5BygsU0j5xTegoYA9uhFGlKzN+0g7tSypTXEVp3A/Y7N/9gTK41kL9mW oR+14UjXfW0BCJZnKBNUl69U0c2Idbn/VhKQ36P/Ht63zSv2k45SIXgwIYIvZhF2n0xcoObfH2UME rFeL0JffyaX9sXXQ+NNE18t1g/YmoMd3q14IbvCOhAi5d+6jiMrZDugvcWPbzSal+kt2j0v9uOlxa ZGBoAxzG0XJPjbQ4CiLSjg8WOzQo4BBXy20qEp8jiogdVH3JiEynLbkc/dbLhEvymxigyzrd7xfvZ IsHIBPaQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mQ2Br-00ELtR-13; Tue, 14 Sep 2021 06:45:20 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 92EF6300129; Tue, 14 Sep 2021 08:45:08 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 7942B2C44FF70; Tue, 14 Sep 2021 08:45:08 +0200 (CEST) Date: Tue, 14 Sep 2021 08:45:08 +0200 From: Peter Zijlstra To: Thomas Gleixner Cc: boqun.feng@gmail.com, linux-kernel@vger.kernel.org, Ingo Molnar , Juri Lelli , Steven Rostedt , Davidlohr Bueso , Will Deacon , Waiman Long , Sebastian Andrzej Siewior , Mike Galbraith , Daniel Bristot de Oliveira Subject: Re: [PATCH 1/4] sched/wakeup: Strengthen current_save_and_set_rtlock_wait_state() Message-ID: References: <20210909105915.757320973@infradead.org> <20210909110203.767330253@infradead.org> <871r5sf7s1.ffs@tglx> <87pmtcdr6a.ffs@tglx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87pmtcdr6a.ffs@tglx> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 14, 2021 at 12:52:29AM +0200, Thomas Gleixner wrote: > On Tue, Sep 14 2021 at 00:08, Thomas Gleixner wrote: > If your reasoning would be correct, then set_special_state() would be > broken as well. I've dropped the patch.