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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1FA82C433F5 for ; Fri, 4 Feb 2022 23:24:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378162AbiBDXYh (ORCPT ); Fri, 4 Feb 2022 18:24:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1378125AbiBDXYN (ORCPT ); Fri, 4 Feb 2022 18:24:13 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF346DFC1801; Fri, 4 Feb 2022 15:24:12 -0800 (PST) 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 sin.source.kernel.org (Postfix) with ESMTPS id 0EE14CE24C4; Fri, 4 Feb 2022 23:24:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BCB2C340F8; Fri, 4 Feb 2022 23:24:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644017048; bh=h409ldMmqmMfyS/cakSSPSAQvvvTJuo4yTyqJxPa/So=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AU+5hKZHKnlUjDLvaWr9xDeQL6JY71dY3zhQ8bhk/aowznbMi1Ugjm8NRwQhq/zS3 PIcgo/GtqXCMKN3xB8vj/JvVvtitUDiy3JaAhtnl7sOOvInzfy+L1Vy40Yx0ExfCFU OFvBlQmHa6Po+MRQbTkHjPT3h5CsvrFGdCnrU5XHSbY4mPDreQojVIEaqlOQgZnNR5 R2p8vNg4/AXk9b/NJSpVsdP5PeTEOloB2P1COs07oYWhPN2nO2nSR2psoLZ3V4WtTo 6AwizYYZbp/USZCedFoEVeeKWHuHhuMXWGA5z3jdAb4QRmdBKVi9MhFqiDqnS4gWm8 cnK/jU+0mxgQQ== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id CD3945C0A6A; Fri, 4 Feb 2022 15:24:07 -0800 (PST) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, rostedt@goodmis.org, Alison Chaiken , "Paul E . McKenney" Subject: [PATCH rcu 08/10] rcu: Update documentation regarding kthread_prio cmdline parameter Date: Fri, 4 Feb 2022 15:24:04 -0800 Message-Id: <20220204232406.814-8-paulmck@kernel.org> X-Mailer: git-send-email 2.31.1.189.g2e36527f23 In-Reply-To: <20220204232355.GA728@paulmck-ThinkPad-P17-Gen-1> References: <20220204232355.GA728@paulmck-ThinkPad-P17-Gen-1> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alison Chaiken Inform readers that the priority of RCU no-callback threads will also be boosted. Signed-off-by: Alison Chaiken Signed-off-by: Paul E. McKenney --- Documentation/admin-guide/kernel-parameters.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f5a27f067db9e..8e2e65122b993 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4504,6 +4504,8 @@ (the least-favored priority). Otherwise, when RCU_BOOST is not set, valid values are 0-99 and the default is zero (non-realtime operation). + When RCU_NOCB_CPU is set, also adjust the + priority of NOCB callback kthreads. rcutree.rcu_nocb_gp_stride= [KNL] Set the number of NOCB callback kthreads in -- 2.31.1.189.g2e36527f23