From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3846BC64EB8 for ; Thu, 4 Oct 2018 21:44:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E498C2084D for ; Thu, 4 Oct 2018 21:44:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="dPehwE+0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E498C2084D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727354AbeJEEkO (ORCPT ); Fri, 5 Oct 2018 00:40:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:38618 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726570AbeJEEkO (ORCPT ); Fri, 5 Oct 2018 00:40:14 -0400 Received: from localhost (unknown [198.217.64.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1242C2084D; Thu, 4 Oct 2018 21:44:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1538689496; bh=A9uxb9b+cp4vUePyAC7tCrECc4U8aOY9HhBfRqGQUEo=; h=From:To:Cc:Subject:Date:From; b=dPehwE+0uhNmA697crHMGnG5Z2btaEa4NeEWmqtOBKXi2LQ214VOqytfXxQVnDPUm Ewq4Ibabd8xzcpvQidHtIfraWxheMgtgja56wFf5lzr4c1zkUhmUg6DZBLFGLILM2A 3W/7i41/1+UGVjui78KlelFtp8ORsZZXQlg0/HMc= From: Andy Lutomirski To: x86@kernel.org Cc: LKML , Andy Lutomirski Subject: [PATCH 0/3] x86/vdso: Minor improvements Date: Thu, 4 Oct 2018 14:44:42 -0700 Message-Id: X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi tglx, This little series applies on top of your patches and, at least on my laptop, gets back all the performance you lost and then some :) --Andy Andy Lutomirski (3): x86/vdso: Remove "memory" clobbers in the vDSO syscall fallbacks x86/vdso: Rearrange do_hres() to improve code generation x86/vdso: Document vgtod_ts better arch/x86/entry/vdso/vclock_gettime.c | 9 ++++----- arch/x86/include/asm/vgtod.h | 9 +++++++++ 2 files changed, 13 insertions(+), 5 deletions(-) -- 2.17.1