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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 E061BECDFB4 for ; Wed, 18 Jul 2018 01:48:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 97EC320693 for ; Wed, 18 Jul 2018 01:48:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nifty.com header.i=@nifty.com header.b="yukQfFts" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 97EC320693 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=socionext.com 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 S1731695AbeGRCXY (ORCPT ); Tue, 17 Jul 2018 22:23:24 -0400 Received: from conssluserg-06.nifty.com ([210.131.2.91]:33891 "EHLO conssluserg-06.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730731AbeGRCXY (ORCPT ); Tue, 17 Jul 2018 22:23:24 -0400 Received: from mail-ua0-f173.google.com (mail-ua0-f173.google.com [209.85.217.173]) (authenticated) by conssluserg-06.nifty.com with ESMTP id w6I1lp6E003450; Wed, 18 Jul 2018 10:47:52 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conssluserg-06.nifty.com w6I1lp6E003450 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1531878472; bh=HjgKPdaJvSBZTjRCsi1FCgvgS/t0ffLim93um5TbeLA=; h=In-Reply-To:References:From:Date:Subject:To:Cc:From; b=yukQfFtsGg5KraUD1xf/M52AJ4lApVVgYGUIBCH2cWADshm7RR3F3Pak2HH4Z3blT zGclepurXrDVseWLB4g+vqMiIJg8nArrxZwqSFEnhUvehwr8JlEYmF1odj02XpwAYi fpesZgpthDxotF2mq/d2PPdZJWKfShc+T2WVTrxJMGxX9se1qmKDZyUkR3a/sgjBB+ r9QzSfIyAlJ7CPwPBpaVxyxqLYMY9UENNOjnVtKdCu/Ccs8YluYMYN0Y6eRFy9EZV0 Zo/CWfiSLL4CagtdCeFhr8W7xs+XsFjAvlAIdAxJ44RyCcOAquCdDYF9UYukMERSuk e/8TvFlxls/Mg== X-Nifty-SrcIP: [209.85.217.173] Received: by mail-ua0-f173.google.com with SMTP id y10-v6so1941946uao.4; Tue, 17 Jul 2018 18:47:52 -0700 (PDT) X-Gm-Message-State: AOUpUlHUbUqMC1VLuUKsPUNrXKekqgvRO3p7yzPjzcn0BLtY82koYlfv Mq5WBlsf4ifK/yKgHrarrRBdrMopXEZnkc6Gun0= X-Google-Smtp-Source: AAOMgpfwjB/PNWc7VEANUv9/s/lM5jQQPqz9OPVYPLrxm7pPSwO12mWyGHOW8KnnnV/mqXMnvF/gtTxHm4opHCpFvXY= X-Received: by 2002:ab0:4c24:: with SMTP id l36-v6mr2627654uaf.199.1531878471007; Tue, 17 Jul 2018 18:47:51 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ab0:3308:0:0:0:0:0 with HTTP; Tue, 17 Jul 2018 18:47:10 -0700 (PDT) In-Reply-To: <20180715215452.GA14040@gmail.com> References: <20180622172212.199633-1-namit@vmware.com> <20180715215452.GA14040@gmail.com> From: Masahiro Yamada Date: Wed, 18 Jul 2018 10:47:10 +0900 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [kbuild ack?] Re: [PATCH v6 0/9] x86: macrofying inline asm for better compilation To: Ingo Molnar Cc: Nadav Amit , Linux Kernel Mailing List , X86 ML , Ingo Molnar , Thomas Gleixner , Sam Ravnborg , Alok Kataria , Christopher Li , Greg Kroah-Hartman , "H. Peter Anvin" , Jan Beulich , Josh Poimboeuf , Juergen Gross , Kate Stewart , Kees Cook , "linux-sparse@vger.kernel.org" , Peter Zijlstra , Philippe Ombredanne , "virtualization@lists.linux-foundation.org" , Linus Torvalds Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2018-07-16 6:54 GMT+09:00 Ingo Molnar : > > * Nadav Amit wrote: > >> > I ran some limited number of benchmarks, and in general the performance >> > impact is not very notable. You can still see >10 cycles shaved off some >> > syscalls that manipulate page-tables (e.g., mprotect()), in which >> > paravirt caused many functions not to be inlined. In addition this >> > patch-set can prevent issues such as [1], and improves code readability >> > and maintainability. > > Ok, that's good enough as a benefit, I suppose. > >> > Nadav Amit (9): >> > Makefile: Prepare for using macros for inline asm > > This non-trivial kbuild patch needs an Acked-by from Masahiro. Sorry for delay. I've issued Acked-by to 1/9 now. Thanks. > Thanks, > > Ingo -- Best Regards Masahiro Yamada