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=-5.6 required=3.0 tests=BAYES_00,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 E3B03C433E2 for ; Tue, 14 Jul 2020 20:53:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C004C2067D for ; Tue, 14 Jul 2020 20:53:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594760009; bh=9rrhLCU6+pm8mW+cFjHhYnxq6+Zbitoa5KpfBufwyWk=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:List-ID: From; b=y551vxxttKO2WPSb5OT8CmiuPeUN1dKz1ui/Nqoxar64j4+FQsgHQCj44DOpqIDP/ G4imnl1z77Istdi8srWAVF6B+ig+6XPlcXIarvSUTfe3o3T/zhC2+N9Q2QdyVv4c2f rCpP0/La3vsvAIYrHH80DI5nrBToRdfH4Eiu4ftw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727925AbgGNUx1 (ORCPT ); Tue, 14 Jul 2020 16:53:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:35676 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726442AbgGNUx1 (ORCPT ); Tue, 14 Jul 2020 16:53:27 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-111-31.bvtn.or.frontiernet.net [50.39.111.31]) (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 B1EEF20658; Tue, 14 Jul 2020 20:53:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594760006; bh=9rrhLCU6+pm8mW+cFjHhYnxq6+Zbitoa5KpfBufwyWk=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=DS6zwyel2JYxJFVR5779AnfaHyLEliGu46hDklCExGnbTZ5AhwTMb6+djX8XDniJW 7UhuqNtpyOvZK/9nOCDK0TGSITeGn9OGYkgzIDm116fRNvuBkNXZ1gg7Z5b3wNQw96 lm0HokpZ/mPBGs3ThraiKc9sJ8IZVR4Lrq0NxYWQ= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 8FEDF3523102; Tue, 14 Jul 2020 13:53:26 -0700 (PDT) Date: Tue, 14 Jul 2020 13:53:26 -0700 From: "Paul E. McKenney" To: Sebastian Andrzej Siewior Cc: mingo@kernel.org, linux-kernel@vger.kernel.org, rcu@vger.kernel.org, arnd@arndb.de, elver@google.com, ethp@qq.com, frederic@kernel.org, jbi.octave@gmail.com, joel@joelfernandes.org, lihaoliang@google.com, madhuparnabhowmik10@gmail.com, mchehab+huawei@kernel.org, peter.enderborg@sony.com, rdunlap@infradead.org, richard.weiyang@linux.alibaba.com, urezki@gmail.com, zou_wei@huawei.com, tglx@linutronix.de Subject: Re: [GIT PULL tip/core/rcu] RCU commits for v5.9 Message-ID: <20200714205326.GY9247@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org References: <20200714172701.GA31369@paulmck-ThinkPad-P72> <20200714181426.hhguqzrcqdubyvae@linutronix.de> <20200714182732.GU9247@paulmck-ThinkPad-P72> <20200714190253.ylqjif7frqs2rq7x@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200714190253.ylqjif7frqs2rq7x@linutronix.de> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 14, 2020 at 09:02:53PM +0200, Sebastian Andrzej Siewior wrote: > On 2020-07-14 11:27:32 [-0700], Paul E. McKenney wrote: > > I believe that Ulad and Joel are working on an update. > > I expressed multiple times that I am unhappy with the raw_spinlock_t > which both want to keep. It is important to be future proof but at the > same time I am not sure if they know how many in-hardirq kmalloc() or > kfree() invocation we have as of today in PREEMPT_RT. > I also had a patch in my series to keep the lock/unlock path symmetrical > and it I think that I the only one that is missing it. Are you good with giving Ulad a few days to produce his patch? We do have at least a week or two before the merge window opens, after all. Thanx, Paul