Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753262AbaAOXWM (ORCPT ); Wed, 15 Jan 2014 18:22:12 -0500 Received: from merlin.infradead.org ([205.233.59.134]:52110 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752877AbaAOXWG (ORCPT ); Wed, 15 Jan 2014 18:22:06 -0500 Date: Thu, 16 Jan 2014 00:21:34 +0100 From: Peter Zijlstra To: "Paul E. McKenney" Cc: Linus Torvalds , Richard Henderson , Matt Turner , Daniel J Blueman , Waiman Long , Linux Kernel , Ivan Kokshaysky Subject: Re: [PATCH v8 4/4] qrwlock: Use smp_store_release() in write_unlock() Message-ID: <20140115232134.GM31570@twins.programming.kicks-ass.net> References: <52D4172E.6030706@hp.com> <52D4A0C7.5070601@numascale.com> <20140114110307.GW7572@laptop.programming.kicks-ass.net> <52D57B60.9020209@twiddle.net> <20140114234443.GY10038@linux.vnet.ibm.com> <20140115023958.GA10038@linux.vnet.ibm.com> <20140115080753.GW31570@twins.programming.kicks-ass.net> <20140115205346.GF10038@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140115205346.GF10038@linux.vnet.ibm.com> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 15, 2014 at 12:53:46PM -0800, Paul E. McKenney wrote: > But we did drop support for SMP i386 quite some time ago, so perhaps > it is time to drop support for SMP Alpha pre-EV56. So while the primitive is called smp_store_release() the !SMP variant still does: *(volatile __type *) = ptr; which should not compile on any Alpha pre EV56, SMP or no for __type == u8. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/