Received: by 2002:ac0:a582:0:0:0:0:0 with SMTP id m2-v6csp19260imm; Thu, 4 Oct 2018 14:45:18 -0700 (PDT) X-Google-Smtp-Source: ACcGV62FxYOaxrFYft0b04htnPr16PZ+tgu2m575jQ/e+CiQrQSr4hcO/Y0E170Ua5GP/6Y6PSv3 X-Received: by 2002:a63:1d10:: with SMTP id d16-v6mr7097412pgd.228.1538689518733; Thu, 04 Oct 2018 14:45:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1538689518; cv=none; d=google.com; s=arc-20160816; b=hQKZ6PsgDaFYijbttsyksLpLf86nTjgmV1lRSTwI9ch6srshhZWiBCxJERFpt0TPLk ybSamySZmkf7lKtT6JPLF5VMV+hTZuMz5vLSkkiUo/gnuP8bLIpxTIYVjDQzC7iOV80Z zmO7Nvq4zBwpu/SUzxM5lXvq5Rn6NUWi5nC8pjtNM18KXp2RyCVUym6lhYyUuFFZ+/HS 2h0zi72zzBi0rnq2btUfmXO13DVwussAfzI+B/h5ANq/jfB/Vgbm362OPl9EoKVxOT/H jouSVLGAKHv/8nKgtL3bXQQ4gLgc5Lq3omgtLk7ehzAQkTtLSCKnFgSxmeqLsBQqMEcx Uf3g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :dkim-signature; bh=YqUCSRQu55eNWuo/wgf2xbVPzuyrJZCPs5Gdcg+T72M=; b=LwOrczuKdpR0VV6a5CeE1pvopB4kk4C5E8pRezoquPtbaD/n0+QbNTiTZO39yVu44F RW5E7QrkXaTiS2TmLpS/0QtrzLz5XyzKx5W+Z4JSy0ILcMkcTPLNAFJv71f72FF+ImNv 3Id62XDnyJ1g8mnghEndGgsJbpYQeB6Ph9bU7nQt1tEIPehH6K9AqWEIS6vqicIwDJzR gVaTqW26Gop/s5UhK9aQOkCdfl/T6xwbsslbLXMfnWV2v7u0XEjH9S7vcHgw+9Ozkior gdo4LJiENTHX0aocnzYAJ59oSw1OBsbzRVzLbxGwdaC0tnbDKsl38r0CZBDmTdAfMryw KcLQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=dPehwE+0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i13-v6si5662596pgo.128.2018.10.04.14.45.02; Thu, 04 Oct 2018 14:45:18 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=dPehwE+0; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727127AbeJEEkO (ORCPT + 99 others); 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