Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp1709113imm; Sun, 15 Jul 2018 14:56:16 -0700 (PDT) X-Google-Smtp-Source: AAOMgpfEO9yWsaVonyp/t+U2ufi0MxIhU1Vl+svL9wcQu1vVWB76xVUc6uKKaK37iDCFJDCXldut X-Received: by 2002:a63:f756:: with SMTP id f22-v6mr7779574pgk.289.1531691775951; Sun, 15 Jul 2018 14:56:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531691775; cv=none; d=google.com; s=arc-20160816; b=YK/0BWro/OiGPwxLFXo5lmMpztC7YY/9rjYeFzrVFjN3T5J9EYF6WNRxvdrAYU3WdO PJV2EF5eAk7xuOzbUDagTEFMT4g5v9rvfZglbHYWfo7f7lYSv+bWtIP6z9x7zatuX+OV PBHCIlO/kQutDW648Mc5q3YU5Z9CZntwVLgyHxqgoE8IsedjbdKV61YWQlAmhWyO/i5Y WN5A1nQ3chf/AW3EFV+K7oDJXgrxLBFnlrsbUSxhUxGGvJ18b9Dg+8Kb7B57lB10rcHb 4owuF6XmaWmlPqX6EylHFVRmJMQ4sudji2Aau4aSGkMNuNAE/GCF3fnoURD9Fe7rtQXS u3Rg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature:arc-authentication-results; bh=lsQnFH/YzjJxBMeuL9m7OSZBdHT6BGAWWXRLvJdwuuk=; b=IXvhiC/UP31wH+dZUobzjkAUO7OYkuIQIrozuRa8BSh2qAVFH2v8rMLS6WS3iAu1hU H3m8fbMEllc2tJpBsKAsE6FgpaZOH0xYCXNGYDCq7ZrN98zTr74lKHXy3C3A6YOrOXUF HKEdqpGE2WRV7vEsD/RMUPHV3c+KRUV476B7JtbDrA3NaJnYuXYD/042K5p041sMMtOp WIvFTZ3vhKhilAhOXd44HtIjE7giIyVngoN0YDfK0VxegBWyjBnFbaiyRtAZl187oBs/ V2GTZeir9xkiKWIiULqzuJpeSSgnPymKDnVDIwTmqzSm7uRdkTMwMozHXh3mAcnOWpNk W9QQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@gmail.com header.s=20161025 header.b=CyPj61lY; 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=fail (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 g5-v6si3424283plq.185.2018.07.15.14.55.49; Sun, 15 Jul 2018 14:56:15 -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=fail header.i=@gmail.com header.s=20161025 header.b=CyPj61lY; 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=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727047AbeGOWTR (ORCPT + 99 others); Sun, 15 Jul 2018 18:19:17 -0400 Received: from mail-wr1-f67.google.com ([209.85.221.67]:36860 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726984AbeGOWTQ (ORCPT ); Sun, 15 Jul 2018 18:19:16 -0400 Received: by mail-wr1-f67.google.com with SMTP id h9-v6so30005604wro.3; Sun, 15 Jul 2018 14:54:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=lsQnFH/YzjJxBMeuL9m7OSZBdHT6BGAWWXRLvJdwuuk=; b=CyPj61lY69r6+rnh8BMJnYDHpj9Lp9Zc6Hd+6CtZIssKZISx19q9WIUHxzVJcsqz13 +ejEpX12hqSClUceQh29Gwbp4j92GzuXKdtftZ50PDgZ3zPK2FjYTTbgryw7MhK9HjFi ccW825HnQubR4v31Y3OXah/p/8jpgPkLLjWuff6hdzXX4Mmqdl6B3w29zvtkLoXPTcvg Mwm2Gpzx4tu0jzrEO7usJgFqJ785tSaXkWxZjpSiBgEnn+Uum1YMRR6Khef2aKgApdO9 QJKtGevhi6XqvwwSF3EJTSNHTWVowK6N7+R5xepJFzwsO9IFekMUYQmsjCG9GOx0Lpzp Unxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=lsQnFH/YzjJxBMeuL9m7OSZBdHT6BGAWWXRLvJdwuuk=; b=Kj4HkJHspaGFHDwdY55weIN/zcA86QA5AMOFdR5sjiTassz9IZTdMgzrk/XeW9tsNj W9yfJJtyipLHU1QYs05MmD3QWlq48jQ3iBTib4GNomjiLwAwG64scP8BwfIM/4ukSLOS YP/Nec5UuDL/MHvFlAw5W75gpBaYCaffYiuQTPmi2Dr0IZW837Lpfbek3FBVjhx8lu4G YMWaRXKNGsALwq5mbmTgUbByk3HbzbEa/slXJwoNoizB3hArrFDygmZ/OzQwqVG8eC8g 6kWA3HgbJj3A/CovAI6hMeSr9d3eP+PX+X5XkGhUI9Uku6WeLypNr4iDLtJSluEf+if6 G1Qw== X-Gm-Message-State: AOUpUlEayXsxxFrohYCyh/xAsZWTuK7+vrmqXdOA7G3CShc0j4An1IR+ mSCuI0bFNZWH6NxNaexvfmuo+g== X-Received: by 2002:adf:b3d7:: with SMTP id x23-v6mr208223wrd.253.1531691695940; Sun, 15 Jul 2018 14:54:55 -0700 (PDT) Received: from gmail.com (2E8B0CD5.catv.pool.telekom.hu. [46.139.12.213]) by smtp.gmail.com with ESMTPSA id 31-v6sm32610165wra.26.2018.07.15.14.54.54 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 15 Jul 2018 14:54:55 -0700 (PDT) Date: Sun, 15 Jul 2018 23:54:52 +0200 From: Ingo Molnar To: Nadav Amit , Masahiro Yamada Cc: Linux Kernel Mailing List , X86 ML , Ingo Molnar , Thomas Gleixner , Masahiro Yamada , 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 Subject: [kbuild ack?] Re: [PATCH v6 0/9] x86: macrofying inline asm for better compilation Message-ID: <20180715215452.GA14040@gmail.com> References: <20180622172212.199633-1-namit@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * 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. Thanks, Ingo