From patchwork Tue Jan 26 16:03:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Waiman Long X-Patchwork-Id: 8124581 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 27E33BEEE5 for ; Tue, 26 Jan 2016 16:05:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 716832012B for ; Tue, 26 Jan 2016 16:05:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C8E8720155 for ; Tue, 26 Jan 2016 16:05:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966578AbcAZQFB (ORCPT ); Tue, 26 Jan 2016 11:05:01 -0500 Received: from g2t4625.austin.hp.com ([15.73.212.76]:58122 "EHLO g2t4625.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966609AbcAZQEO (ORCPT ); Tue, 26 Jan 2016 11:04:14 -0500 Received: from g1t6216.austin.hp.com (g1t6216.austin.hp.com [15.73.96.123]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by g2t4625.austin.hp.com (Postfix) with ESMTPS id D98793C26 for ; Tue, 26 Jan 2016 16:04:13 +0000 (UTC) Received: from g2t4688.austin.hpicorp.net (g2t4688.austin.hpicorp.net [15.94.10.174]) by g1t6216.austin.hp.com (Postfix) with ESMTP id 702ED93; Tue, 26 Jan 2016 16:04:10 +0000 (UTC) Received: from RHEL65.localdomain (unknown [16.214.194.12]) by g2t4688.austin.hpicorp.net (Postfix) with ESMTP id 6598962; Tue, 26 Jan 2016 16:04:09 +0000 (UTC) From: Waiman Long To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Alexander Viro Cc: linux-fsdevel@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, Peter Zijlstra , Scott J Norton , Douglas Hatch , Waiman Long Subject: [RFC PATCH 2/3] lib/list_batch, x86: Enable list insertion/deletion batching in x86-64 Date: Tue, 26 Jan 2016 11:03:38 -0500 Message-Id: <1453824219-51437-3-git-send-email-Waiman.Long@hpe.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1453824219-51437-1-git-send-email-Waiman.Long@hpe.com> References: <1453824219-51437-1-git-send-email-Waiman.Long@hpe.com> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP System with a large number of CPUs will benefit from the list batching facility. This patch enables it for x86-64 as 32-bit i386 is not likely to get much gain from it. Signed-off-by: Waiman Long --- arch/x86/Kconfig | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 330e738..443e41d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -42,6 +42,7 @@ config X86 select ARCH_SUPPORTS_NUMA_BALANCING if X86_64 select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF if X86_64 + select ARCH_USE_LIST_BATCHING if X86_64 select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH if SMP