From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH v3 5/6] powerpc/pseries: implement paravirt qspinlocks for SPLPAR Date: Thu, 23 Jul 2020 16:00:11 +0200 Message-ID: <20200723140011.GR5523@worktop.programming.kicks-ass.net> References: <20200706043540.1563616-1-npiggin@gmail.com> <20200706043540.1563616-6-npiggin@gmail.com> <874kqhvu1v.fsf@mpe.ellerman.id.au> <8265d782-4e50-a9b2-a908-0cb588ffa09c@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <8265d782-4e50-a9b2-a908-0cb588ffa09c@redhat.com> Sender: kvm-ppc-owner@vger.kernel.org To: Waiman Long Cc: Michael Ellerman , Nicholas Piggin , linuxppc-dev@lists.ozlabs.org, Will Deacon , Boqun Feng , Ingo Molnar , Anton Blanchard , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, kvm-ppc@vger.kernel.org, linux-arch@vger.kernel.org List-Id: linux-arch.vger.kernel.org On Thu, Jul 09, 2020 at 12:06:13PM -0400, Waiman Long wrote: > We don't really need to do a pv_spinlocks_init() if pv_kick() isn't > supported. Waiman, if you cannot explain how not having kick is a sane thing, what are you saying here? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726521AbgGWOA0 (ORCPT ); Thu, 23 Jul 2020 10:00:26 -0400 Date: Thu, 23 Jul 2020 16:00:11 +0200 From: Peter Zijlstra Subject: Re: [PATCH v3 5/6] powerpc/pseries: implement paravirt qspinlocks for SPLPAR Message-ID: <20200723140011.GR5523@worktop.programming.kicks-ass.net> References: <20200706043540.1563616-1-npiggin@gmail.com> <20200706043540.1563616-6-npiggin@gmail.com> <874kqhvu1v.fsf@mpe.ellerman.id.au> <8265d782-4e50-a9b2-a908-0cb588ffa09c@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8265d782-4e50-a9b2-a908-0cb588ffa09c@redhat.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Waiman Long Cc: Michael Ellerman , Nicholas Piggin , linuxppc-dev@lists.ozlabs.org, Will Deacon , Boqun Feng , Ingo Molnar , Anton Blanchard , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, kvm-ppc@vger.kernel.org, linux-arch@vger.kernel.org Message-ID: <20200723140011.vgaAdip2fiDpBBGAaYHPMyeKjN5p5JiToBu6mHB07zo@z> On Thu, Jul 09, 2020 at 12:06:13PM -0400, Waiman Long wrote: > We don't really need to do a pv_spinlocks_init() if pv_kick() isn't > supported. Waiman, if you cannot explain how not having kick is a sane thing, what are you saying here?