From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752022AbdEELxQ (ORCPT ); Fri, 5 May 2017 07:53:16 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:57119 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751180AbdEELxO (ORCPT ); Fri, 5 May 2017 07:53:14 -0400 Date: Fri, 5 May 2017 13:53:03 +0200 From: Peter Zijlstra To: Yury Norov Cc: pan xinhui , Will Deacon , "linux-kernel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Adam Wallis , Andrew Pinski , Arnd Bergmann , Catalin Marinas , Ingo Molnar , Jan Glauber , Mark Rutland , Pan Xinhui Subject: Re: =?utf-8?B?562U5aSN?= =?utf-8?Q?=3A?= [PATCH 0/3] arm64: queued spinlocks and rw-locks Message-ID: <20170505115303.s3bsu4adfgkxrhh2@hirez.programming.kicks-ass.net> References: <20170503145141.4966-1-ynorov@caviumnetworks.com> <20170504202809.lv222a3oes54ijkj@yury-N73SV> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170504202809.lv222a3oes54ijkj@yury-N73SV> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 04, 2017 at 11:28:09PM +0300, Yury Norov wrote: > I don't think > it's a real use case to have ticket spinlocks and queued rwlocks There's nothing wrong with that combination. In fact, we merged qrwlock much earlier than qspinlock.