From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932282Ab3KFOca (ORCPT ); Wed, 6 Nov 2013 09:32:30 -0500 Received: from merlin.infradead.org ([205.233.59.134]:57385 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932208Ab3KFOc3 (ORCPT ); Wed, 6 Nov 2013 09:32:29 -0500 Date: Wed, 6 Nov 2013 15:32:14 +0100 From: Peter Zijlstra To: "Kirill A. Shutemov" Cc: Andrew Morton , "Kirill A. Shutemov" , Ingo Molnar , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, Linus Torvalds Subject: Re: lockref: Use bloated_spinlocks to avoid explicit config dependencies Message-ID: <20131106143214.GP10651@twins.programming.kicks-ass.net> References: <1382442839-7458-1-git-send-email-kirill.shutemov@linux.intel.com> <20131105150145.734a5dd5b5d455800ebfa0d3@linux-foundation.org> <20131105224217.GC20167@shutemov.name> <20131105155619.021f32eba1ca8f15a73ed4c9@linux-foundation.org> <20131105231310.GE20167@shutemov.name> <20131106093131.GU28601@twins.programming.kicks-ass.net> <20131106111845.GG26785@twins.programming.kicks-ass.net> <20131106133112.GB22132@shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131106133112.GB22132@shutemov.name> 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, Nov 06, 2013 at 03:31:12PM +0200, Kirill A. Shutemov wrote: > Should we get rid of CONFIG_CMPXCHG_LOCKREF completely and have here: > > #if defined(CONFIG_ARCH_USE_CMPXCHG_LOCKREF) && \ > defined(CONFIG_SMP) && !BLOATED_SPINLOCKS > Yeah, that might make more sense.