From patchwork Mon Jun 20 23:10:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 12888519 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F2AFC433EF for ; Mon, 20 Jun 2022 23:13:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347089AbiFTXNP (ORCPT ); Mon, 20 Jun 2022 19:13:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53698 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347093AbiFTXMF (ORCPT ); Mon, 20 Jun 2022 19:12:05 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A991E222AD; Mon, 20 Jun 2022 16:10:45 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id BCB0261518; Mon, 20 Jun 2022 23:10:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66E59C341F3; Mon, 20 Jun 2022 23:10:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1655766632; bh=HKXI7a3s5VE0aI0E/MR38X8xReaE4DBkd248vFw4EvI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LBOlQ47nuvENrFskbYVGWLjaQifuDIznW2DH8k24/T0/2Cu/TU/NdPQ5SouFRgUuH Fy9WNqi0hk2FMMLM+p1ckNaN2PkZrJuqbQc0zgeN0o+AjrTZg2AMWx1/HyBH0kRA+o GyxGvWld8sSWE1jcM5nMVd8FMsFv2fWGJ6EgcgZd3oo4vuHmEBkTg9O9f5RyKBkGaN pMMOZVkiMcGl2wuVnDY82vTZprdO5gOtgVo0U4zmmMfaviI1Y7ucHxYHQaeIzslA63 5CqGVJ93+boJgz4iITTarQQac6gVEHqY+MKg7xrSFy3jtwMLGaCc7uP2B6W0DqV3Mp MrtjPJvvLbIXg== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 782B35C1363; Mon, 20 Jun 2022 16:10:31 -0700 (PDT) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, rostedt@goodmis.org, Frederic Weisbecker , Peter Zijlstra , Thomas Gleixner , Neeraj Upadhyay , Uladzislau Rezki , Joel Fernandes , Boqun Feng , Nicolas Saenz Julienne , Marcelo Tosatti , Xiongfeng Wang , Yu Liao , Phil Auld , Paul Gortmaker , Alex Belits , "Paul E . McKenney" Subject: [PATCH rcu 22/23] MAINTAINERS: Add Paul as context tracking maintainer Date: Mon, 20 Jun 2022 16:10:28 -0700 Message-Id: <20220620231029.3844583-22-paulmck@kernel.org> X-Mailer: git-send-email 2.31.1.189.g2e36527f23 In-Reply-To: <20220620231027.GA3844372@paulmck-ThinkPad-P17-Gen-1> References: <20220620231027.GA3844372@paulmck-ThinkPad-P17-Gen-1> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org From: Frederic Weisbecker Since most of the bits have been imported from kernel/rcu/tree.c and now that the context tracking code is tightly linked to RCU, add Paul as a context tracking maintainer. Also update the context tracking file header accordingly. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Neeraj Upadhyay Cc: Uladzislau Rezki Cc: Joel Fernandes Cc: Boqun Feng Cc: Nicolas Saenz Julienne Cc: Marcelo Tosatti Cc: Xiongfeng Wang Cc: Yu Liao Cc: Phil Auld Cc: Paul Gortmaker Cc: Alex Belits Signed-off-by: Paul E. McKenney --- MAINTAINERS | 1 + kernel/context_tracking.c | 12 +++++++----- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 3cf9842d9233c..4e38d7533cbe9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5039,6 +5039,7 @@ F: include/linux/console* CONTEXT TRACKING M: Frederic Weisbecker +M: "Paul E. McKenney" S: Maintained F: kernel/context_tracking.c F: include/linux/context_tracking* diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c index d373fad7c0cba..1da44803fd319 100644 --- a/kernel/context_tracking.c +++ b/kernel/context_tracking.c @@ -1,18 +1,20 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Context tracking: Probe on high level context boundaries such as kernel - * and userspace. This includes syscalls and exceptions entry/exit. + * Context tracking: Probe on high level context boundaries such as kernel, + * userspace, guest or idle. * * This is used by RCU to remove its dependency on the timer tick while a CPU - * runs in userspace. + * runs in idle, userspace or guest mode. * - * Started by Frederic Weisbecker: + * User/guest tracking started by Frederic Weisbecker: * - * Copyright (C) 2012 Red Hat, Inc., Frederic Weisbecker + * Copyright (C) 2012 Red Hat, Inc., Frederic Weisbecker * * Many thanks to Gilad Ben-Yossef, Paul McKenney, Ingo Molnar, Andrew Morton, * Steven Rostedt, Peter Zijlstra for suggestions and improvements. * + * RCU extended quiescent state bits imported from kernel/rcu/tree.c + * where the relevant authorship may be found. */ #include