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 3AA58C624B4 for ; Thu, 23 Nov 2023 18:04:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231151AbjKWSEW (ORCPT ); Thu, 23 Nov 2023 13:04:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235335AbjKWSEK (ORCPT ); Thu, 23 Nov 2023 13:04:10 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E270210E6 for ; Thu, 23 Nov 2023 10:04:05 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 06E95C433C8; Thu, 23 Nov 2023 18:04:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1700762645; bh=sa/nTboLB82VKSg+Hj+ux7+4ADWl2DePCUmqbSyIWaI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PXKJjY2i/tnzFA+0F3lWc3baj5S4XgpWLi+IseofMdPiBu388LrvlzjJbmF150G9L pViHY8ZlE4XSfTshoFIb0FB3iojhYqBvb2fIN8XgHrvQxc3IlsTN6lWESI+IGiGbHI kSzQ5Nk4wdNGgmlUN+20QHo7Lpl4grep7kJrku0/Z5CJ5ZPm4hZWfbyg6UNAkCLQZU t/zz+iR8GfbCI4thGrplRIDBs7dr55jHvKkOQ2d5t7J1nfgT1J4jimD+ZbrojbQS73 1ZpVw+js5yweYUxFFXDBh5gO3pO2eyo1l4ERc/VZRsLQ6CFHRjTWVE83u7PrepP/Nx IlBde4jLzLgpQ== Date: Thu, 23 Nov 2023 19:04:02 +0100 From: Frederic Weisbecker To: "Paul E. McKenney" Cc: Qais Yousef , Joel Fernandes , Neeraj Upadhyay , Josh Triplett , Boqun Feng , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Andrea Righi , John Stultz , linux-kernel@vger.kernel.org, rcu@vger.kernel.org Subject: Re: [PATCH] rcu: Provide a boot time parameter to enable lazy RCU Message-ID: References: <20231121205304.315146-1-qyousef@layalina.io> <811b2157-1009-4339-8ff2-0433512f3094@paulmck-laptop> <20231121214415.ovoskvbjarzpxi6e@airbuntu> <8ad4e628-7a88-490c-a54d-df09f851f189@paulmck-laptop> <20231121221556.vtpmboamgszbt3jf@airbuntu> <4ec83bf4-4c56-4f47-8473-151b57b80840@paulmck-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4ec83bf4-4c56-4f47-8473-151b57b80840@paulmck-laptop> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le Thu, Nov 23, 2023 at 09:42:12AM -0800, Paul E. McKenney a écrit : > On Tue, Nov 21, 2023 at 10:15:56PM +0000, Qais Yousef wrote: > > On 11/22/23 15:26, Paul E. McKenney wrote: > > > > > > Either way; I'll follow what the crowd wants too :-) > > > > > > Usually a wise choice. ;-) > > > > > > But I must defer to the people using it. > > > > >From Android PoV I'd like to be able to boot with default disabled and allow > > people to opt-in. At least for the time being until we have confidence no one > > is caught with surprise if this caused unexpected problems. > > > > In the future it might default to on once it gets wider usage and testing. > > > > So having a new Kconfig to DEFAULT_OFF sounds good to me to enable a compile > > time switch to pick the default with a boot time to further control. > > > > Which would be my plan for v2 unless I hear another suggestion in the coming > > week (where I hope people would have had a chance to look and think about it). > > Sounds good to me! Silence will be interpreted as assent. ;-) Silence sounds good to me :-) Thanks.