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=-6.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_PASS 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 2B58CC10F13 for ; Tue, 16 Apr 2019 16:28:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EDBA620821 for ; Tue, 16 Apr 2019 16:28:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=maine.edu header.i=@maine.edu header.b="e+MVs7DE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729828AbfDPQ2G (ORCPT ); Tue, 16 Apr 2019 12:28:06 -0400 Received: from mail-qt1-f195.google.com ([209.85.160.195]:45112 "EHLO mail-qt1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726860AbfDPQ2G (ORCPT ); Tue, 16 Apr 2019 12:28:06 -0400 Received: by mail-qt1-f195.google.com with SMTP id v20so23951861qtv.12 for ; Tue, 16 Apr 2019 09:28:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maine.edu; s=google; h=from:date:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=Hbq+cj0kC2CgcN1sfaQg89cNt6bp/FWiwQZ/y/75Yrg=; b=e+MVs7DEl9pMknHJp2ULh6x0xG554YmlN9KPgj/g7GE/hh3FP7sD5tvbsBKxZUp2yz fWUsPuckbpnTzsgIdRONt2ZsbvHOhI+O8uv5jv/SjohRWKbHyURTbFnM2Yb03/G6bPpk GFmAamuOkhxrSqi+3xXlbvQ4VFqu1+AQa4A7I= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version; bh=Hbq+cj0kC2CgcN1sfaQg89cNt6bp/FWiwQZ/y/75Yrg=; b=ewKgPs8CeCWubVc5VewSBu/D5CAt8+pXKKdLz/GanHMYwA8YgB61cHPG6iHdjlYzqx DBo73UH949g2QDuz0T1Ii9cRZuI27lQv9gLv4KF7XtMQ+MQzPUI0OdUZrtYTRG6cHJVR 0zfMHUlSxysdgn3syP1/lonvVxr4YIdq0MYJgYI3QDle3e5HhglNqiQ5fsRUz/QewE3i j69A71hMLSAQI/b3byD9bz2tUdJeE93yKPzoZ4KL0Gq2MzGyapt07ZWAeOgnXQO9+zG8 XAHXGHAP2XZCnIklMFsQGX2OJfWRN1PfKQjqF821Nw0RgVTeEpyovlguPjbJSLSkz2qZ gDLw== X-Gm-Message-State: APjAAAU/CQPlgW7LhvqpJNBSccMrcp9QtsuwAltAtbGfcrbY7v0PTfsf JLnxwIeuwNtUD7awqN1Er6UUIA== X-Google-Smtp-Source: APXvYqypqGPacDCwA5sK33jUO1jgCMNrbBKeagAr+Y2WgjlFGcEAn9bov9i1MY8JAOAPsXyprkoOug== X-Received: by 2002:a0c:f806:: with SMTP id r6mr64322040qvn.188.1555432085802; Tue, 16 Apr 2019 09:28:05 -0700 (PDT) Received: from macbook-air (weaver.eece.maine.edu. [130.111.218.23]) by smtp.gmail.com with ESMTPSA id 46sm37538023qtz.87.2019.04.16.09.28.03 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 16 Apr 2019 09:28:04 -0700 (PDT) From: Vince Weaver X-Google-Original-From: Vince Weaver Date: Tue, 16 Apr 2019 12:28:00 -0400 (EDT) X-X-Sender: vince@macbook-air To: vincent.weaver@maine.edu, mingo@kernel.org, eranian@google.com, peterz@infradead.org, alexander.shishkin@linux.intel.com, acme@redhat.com, hpa@zytor.com, torvalds@linux-foundation.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, jolsa@redhat.com cc: linux-tip-commits@vger.kernel.org Subject: Re: [tip:perf/core] perf/x86/intel: Force resched when TFA sysctl is modified In-Reply-To: Message-ID: References: <20190408173252.37932-3-eranian@google.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 16 Apr 2019, tip-bot for Stephane Eranian wrote: > Commit-ID: f447e4eb3ad1e60d173ca997fcb2ef2a66f12574 > Gitweb: https://git.kernel.org/tip/f447e4eb3ad1e60d173ca997fcb2ef2a66f12574 > Author: Stephane Eranian > AuthorDate: Mon, 8 Apr 2019 10:32:52 -0700 > Committer: Ingo Molnar > CommitDate: Tue, 16 Apr 2019 12:19:35 +0200 > > perf/x86/intel: Force resched when TFA sysctl is modified What's TFA? Tuna-fish-alarm? Nowhere in the commit or in the code does it ever say what a TFA is or why we'd want to resched when it is modified. Vince