From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752405AbdANMud (ORCPT ); Sat, 14 Jan 2017 07:50:33 -0500 Received: from mail.skyhub.de ([78.46.96.112]:46231 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752149AbdANMuc (ORCPT ); Sat, 14 Jan 2017 07:50:32 -0500 Date: Sat, 14 Jan 2017 13:50:17 +0100 From: Borislav Petkov To: "Rafael J. Wysocki" Cc: "Paul E. McKenney" , Linux Kernel Mailing List , Lv , stan.kain@gmail.com, waffolz@hotmail.com, Josh Triplett , Steven Rostedt , mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, Ingo Molnar , Linus Torvalds Subject: Re: [PATCH] rcu: Narrow early boot window of illegal synchronous grace periods Message-ID: <20170114125017.5wp2khn5scezeuau@pd.tnic> References: <20170113023807.GA27120@linux.vnet.ibm.com> <20170113112519.q6tmariemhhk5e56@pd.tnic> <20170114080022.GS5238@linux.vnet.ibm.com> <20170114103525.i5bob5tjszqdfpvn@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20161014 (1.7.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 14, 2017 at 01:27:40PM +0100, Rafael J. Wysocki wrote: > OK, so this fixes the problem with synchronize_rcu_expedited() in > acpi_os_map_cleanup(), right? Yeah. > I wonder if the ACPI-specific fix is still needed, then? It is not strictly necessary. If you still think it would be better to have it regardless, you could pick it up. I.e., making ACPI more robust, yadda yadda. I dunno, though, perhaps it is only complicating the code unnecessarily and then can be safely ignored with a mental note for future freezes. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.