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=-3.5 required=3.0 tests=BAYES_00,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 8B17CC433E6 for ; Sat, 29 Aug 2020 07:31:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 634E6207BB for ; Sat, 29 Aug 2020 07:31:23 +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="UmsTEw14" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726912AbgH2HbW (ORCPT ); Sat, 29 Aug 2020 03:31:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726056AbgH2HbW (ORCPT ); Sat, 29 Aug 2020 03:31:22 -0400 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A625EC061236; Sat, 29 Aug 2020 00:31:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.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=279k8AeqOLCTopTeV5uu2VZ9asceYdrmtuKPOqaG8bc=; b=UmsTEw1411nVBcjgUuowDWKFWB WzoGCd6PpoQ0VqtNDI9zgVFZlPal6fRAnjhyoYuEywtutKkTG4HsKIwVYweMS+Nf5Pk3dCbivo2k8 01lln/IP2BqFsaahqVZC7VqMynPiLJyDsTqPZFa1Yz4I4bK3BaorIAiWu1m7eUhgKodFH/gOuIFbu 6BG6U/eixy02pdpk9QH7XDBZKfdYokq/5IjzuTsXMyCPTKqtVP1thTOjjVckRwVOKCh+WOLNEpRQa mm1GDtaIgkeUXrXGlgaJKz0x8oJbzPi0S8dKH2C1v3lcLkWaGsc6f62H56diwpZTNgsFwJTM4ePvm 80tX+HRQ==; 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 1kBvKA-0002GY-CU; Sat, 29 Aug 2020 07:30:54 +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 561A43011F0; Sat, 29 Aug 2020 09:30:49 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 150A722B8F169; Sat, 29 Aug 2020 09:30:49 +0200 (CEST) Date: Sat, 29 Aug 2020 09:30:49 +0200 From: peterz@infradead.org To: Masami Hiramatsu Cc: linux-kernel@vger.kernel.org, Eddy_Wu@trendmicro.com, x86@kernel.org, davem@davemloft.net, rostedt@goodmis.org, naveen.n.rao@linux.ibm.com, anil.s.keshavamurthy@intel.com, linux-arch@vger.kernel.org, cameron@moodycamel.com, oleg@redhat.com, will@kernel.org, paulmck@kernel.org Subject: Re: [PATCH v4 18/23] sched: Fix try_invoke_on_locked_down_task() semantics Message-ID: <20200829073049.GC2674@hirez.programming.kicks-ass.net> References: <159861759775.992023.12553306821235086809.stgit@devnote2> <159861779482.992023.8503137488052381952.stgit@devnote2> <20200829110155.70c676520ad2cfef8374171d@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200829110155.70c676520ad2cfef8374171d@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Aug 29, 2020 at 11:01:55AM +0900, Masami Hiramatsu wrote: > On Fri, 28 Aug 2020 21:29:55 +0900 > Masami Hiramatsu wrote: > > > From: Peter Zijlstra > > In the next version I will drop this since I will merge the kretprobe_holder > things into removing kretporbe hash patch. > > However, this patch itself seems fixing a bug of commit 2beaf3280e57 > ("sched/core: Add function to sample state of locked-down task"). > Peter, could you push this separately? Yeah, Paul and me have a slightly different version for that, this also changes semantics we're still bickering over ;-) But yes, I'll take care of it.