Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752741AbaA3Itl (ORCPT ); Thu, 30 Jan 2014 03:49:41 -0500 Received: from e28smtp09.in.ibm.com ([122.248.162.9]:50759 "EHLO e28smtp09.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751110AbaA3Itj (ORCPT ); Thu, 30 Jan 2014 03:49:39 -0500 Message-ID: <52EA139C.8040106@linux.vnet.ibm.com> Date: Thu, 30 Jan 2014 14:25:56 +0530 From: Raghavendra K T Organization: IBM User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7 MIME-Version: 1.0 To: Waiman Long CC: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Arnd Bergmann , linux-arch@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, Peter Zijlstra , Steven Rostedt , Andrew Morton , Michel Lespinasse , Andi Kleen , Rik van Riel , "Paul E. McKenney" , Linus Torvalds , George Spelvin , Tim Chen , Daniel J Blueman , Alexander Fyodorov , Aswin Chandramouleeswaran , Scott J Norton , Thavatchai Makphaibulchoke Subject: Re: [PATCH v3 0/2] qspinlock: Introducing a 4-byte queue spinlock References: <1390933151-1797-1-git-send-email-Waiman.Long@hp.com> In-Reply-To: <1390933151-1797-1-git-send-email-Waiman.Long@hp.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14013008-2674-0000-0000-00000C7E3B37 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/28/2014 11:49 PM, Waiman Long wrote: > v2->v3: > - Simplify the code by using numerous mode only without an unfair option. > - Use the latest smp_load_acquire()/smp_store_release() barriers. > - Move the queue spinlock code to kernel/locking. > - Make the use of queue spinlock the default for x86-64 without user > configuration. > - Additional performance tuning. > Could you please point me to any dependency patches I am missing? I am getting the compilation error (latest linus tree with 9b0cd304f26b9fca140de15deeac2bf357d1f388) Got something like below make[1]: Nothing to be done for `all'. CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h make[1]: Nothing to be done for `relocs'. CC kernel/bounds.s In file included from include/asm-generic/getorder.h:7:0, from /test/master/arch/x86/include/asm/page.h:71, from /test/master/arch/x86/include/asm/processor.h:17, from /test/master/arch/x86/include/asm/atomic.h:6, from include/linux/atomic.h:4, from include/asm-generic/qspinlock.h:22, from /test/master/arch/x86/include/asm/spinlock_types.h:15, from /test/master/arch/x86/include/asm/paravirt_types.h:331, from /test/master/arch/x86/include/asm/ptrace.h:65, from /test/master/arch/x86/include/asm/alternative.h:8, from /test/master/arch/x86/include/asm/bitops.h:16, from include/linux/bitops.h:33, from include/linux/kernel.h:10, from include/asm-generic/bug.h:13, from /test/master/arch/x86/include/asm/bug.h:38, from include/linux/bug.h:4, from include/linux/page-flags.h:9, from kernel/bounds.c:9: include/linux/log2.h: In function ?__ilog2_u32?: include/linux/log2.h:34:2: error: implicit declaration of function ?fls? [-Werror=implicit-function-declaration] include/linux/log2.h: In function ?__ilog2_u64?: include/linux/log2.h:42:2: error: implicit declaration of function ?fls64? [-Werror=implicit-function-declaration] include/linux/log2.h: In function ?__roundup_pow_of_two?: . . [trimmed] -- 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/