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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 86ACEC43603 for ; Tue, 10 Dec 2019 04:11:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 440F92077B for ; Tue, 10 Dec 2019 04:11:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575951080; bh=cLDeA+wrF3WYK7fsmV00W4JKsOtkiaUGuSWUs4Si49I=; h=Date:From:To:Cc:Subject:Reply-To:List-ID:From; b=LPwMzLwoWi1qOO1BI3xFBOkbyg0QHtUF3OmGUSVG5Eu3b1iWq4E0uqUKTLhoJZIoi NARs525wEL3AIKilmJHjp6oHQpbd0o5KTNi7+1JQxBNwe/C0Au5+TK1jgGaSb1s1ex E9NQnX3498tS5vfLxcntKYTcbi49Y7nXA3pIGsAg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726718AbfLJELU (ORCPT ); Mon, 9 Dec 2019 23:11:20 -0500 Received: from mail.kernel.org ([198.145.29.99]:44644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726691AbfLJELT (ORCPT ); Mon, 9 Dec 2019 23:11:19 -0500 Received: from paulmck-ThinkPad-P72.home (199-192-87-166.static.wiline.com [199.192.87.166]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 51DA72071E; Tue, 10 Dec 2019 04:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575951079; bh=cLDeA+wrF3WYK7fsmV00W4JKsOtkiaUGuSWUs4Si49I=; h=Date:From:To:Cc:Subject:Reply-To:From; b=CE5XShxfTcatuFNxXCJ7gtHM2KpvL6OZD0+/zxBenM4mRlFCgDtN+Xxmt8IBOSCrc W1R6ltJim4g6/ZOy1ICnGCw0oYnWX/AUb9NM72RWqLkSs3gkCdD4lyS5bbWvNf0bUG T+twvtdU/BQT19c4M00LywKJsOClM/e/GyTJD4MY= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id E5A3A3522768; Mon, 9 Dec 2019 20:11:18 -0800 (PST) Date: Mon, 9 Dec 2019 20:11:18 -0800 From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org Subject: [PATCH tip/core/rcu 0/7] kfree_rcu() updates for v5.6 Message-ID: <20191210041118.GA3115@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Sender: rcu-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Hello! The following series disentangles kfree_rcu() from core RCU and also provides batching, all courtesy of Joel Fernandes: 1. Add basic support for kfree_rcu() batching. 2. Add kfree_rcu() performance tests. 3. Make kfree_rcu() use a non-atomic ->monitor_todo. 4. Add multiple in-flight batches of kfree_rcu() work. 5. Add support for debug_objects debugging for kfree_rcu(). 6. Remove kfree_rcu() special casing and lazy-callback handling. 7. Remove kfree_call_rcu_nobatch(). Thanx, Paul ------------------------------------------------------------------------ Documentation/RCU/stallwarn.txt | 11 Documentation/admin-guide/kernel-parameters.txt | 21 + include/linux/rcu_segcblist.h | 2 include/linux/rcutiny.h | 11 include/linux/rcutree.h | 3 include/trace/events/rcu.h | 32 -- kernel/rcu/rcu.h | 27 - kernel/rcu/rcu_segcblist.c | 25 - kernel/rcu/rcu_segcblist.h | 25 - kernel/rcu/rcuperf.c | 191 ++++++++++++-- kernel/rcu/srcutree.c | 4 kernel/rcu/tiny.c | 28 +- kernel/rcu/tree.c | 327 ++++++++++++++++++++---- kernel/rcu/tree.h | 1 kernel/rcu/tree_plugin.h | 48 --- kernel/rcu/tree_stall.h | 6 kernel/rcu/update.c | 10 17 files changed, 548 insertions(+), 224 deletions(-)