From patchwork Wed May 10 16:58:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 13237081 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 3C5EBC7EE22 for ; Wed, 10 May 2023 16:58:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229500AbjEJQ6e (ORCPT ); Wed, 10 May 2023 12:58:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39770 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236021AbjEJQ6b (ORCPT ); Wed, 10 May 2023 12:58:31 -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 0ACE835A9; Wed, 10 May 2023 09:58:29 -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 841E063E9F; Wed, 10 May 2023 16:58:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EB57EC4339B; Wed, 10 May 2023 16:58:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683737908; bh=0MTkatJ7kgJgaZCFLKN9q20Wq6EuzATenzLJddk8ug0=; h=Date:From:To:Cc:Subject:Reply-To:From; b=Uob4DUVlHU3yo7oHYnCnhaAh8N9EA2pvxZ8bRU+NHJ3QP8ici949apy1b0s29HW+c osaiJgOYPAXuekXEW0fr3H+0wknw/+KI235nH2Im8EFl5Uluae0tfVZg4ITLYBIUTw gI9at4ATdkOjoxfHJcDPi4g3SOy7FWnNiZSOwO8lWst6lpb/Go/kfDERY3f29gCWTl c7617wJzoOl4yfRASQsfhJ/ozqhmOs9Xk5W/nvVuMApb++YO3yf0PHZ5YuzscqtuX/ XmXCXYOkOGYjuG4G1pcYCjLf1o76aiWWL/cmlzDlDwYcnYqSNER8Pr7/2BEBeGeUEa ubXEFgJjWms/Q== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 90450CE126E; Wed, 10 May 2023 09:58:27 -0700 (PDT) Date: Wed, 10 May 2023 09:58:27 -0700 From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org Subject: [PATCH rcu 0/8] Miscellaneous fixes for v6.5 Message-ID: Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Hello! This series has miscellaneous fixes: 1. Remove extraneous parentheses from srcu_read_lock() etc.. 2. Remove RCU_NONIDLE(), courtesy of Peter Zijlstra. 3. Check callback-invocation time limit for rcuc kthreads. 4. Employ jiffies-based backstop to callback time limit. 5. Mark additional concurrent load from ->cpu_no_qs.b.exp. 6. Mark rcu_cpu_kthread() accesses to ->rcu_cpu_has_work. 7. Make rcu_cpu_starting() rely on interrupts being disabled. 8. rcu-tasks: Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs. This would normally be in the rcu-tasks category, but its change to RCU's CPU-hotplug logic results in a source-code dependency that puts it here in order to avoid a merge conflict. Thanx, Paul ------------------------------------------------------------------------ b/Documentation/RCU/Design/Requirements/Requirements.rst | 36 --------- b/Documentation/RCU/whatisRCU.rst | 1 b/include/linux/rcupdate.h | 25 ------ b/include/linux/srcu.h | 8 +- b/kernel/rcu/Kconfig | 18 ++++ b/kernel/rcu/rcu.h | 6 + b/kernel/rcu/tasks.h | 7 + b/kernel/rcu/tree.c | 28 +++++-- b/kernel/rcu/tree_exp.h | 2 b/kernel/rcu/tree_plugin.h | 4 - kernel/rcu/tree.c | 55 ++++++++++----- 11 files changed, 95 insertions(+), 95 deletions(-)