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[209.132.180.67]) by mx.google.com with ESMTP id y23-v6si2364952pgk.427.2018.07.17.18.49.16; Tue, 17 Jul 2018 18:49:31 -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=@nifty.com header.s=dec2015msa header.b=yukQfFts; 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 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731686AbeGRCXY (ORCPT + 99 others); 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-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