Received: by 10.213.65.68 with SMTP id h4csp249796imn; Fri, 16 Mar 2018 01:44:29 -0700 (PDT) X-Google-Smtp-Source: AG47ELsJLWfrrlaMqaVIyt8hMgzMbjFEd1I8kpfydb1M9NUeCMswMXXvmyaYkze2lVqdqPH1PGPc X-Received: by 10.99.171.72 with SMTP id k8mr833099pgp.355.1521189869076; Fri, 16 Mar 2018 01:44:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521189869; cv=none; d=google.com; s=arc-20160816; b=ITMOmWgVGlN5bRf9HQwcN1nRSnMGDi2Flduknx49xNApBTtuLRxm075eA2ip2L/GEn 77m1mRXzh7QMdKxpLonVnqwrdH1IkRgtbADg3d709vgqbbTVtwH0PI4yTM/qGHoj0e/B xO62KanHlaKwrBn3OkrUs/0d5UkZdiG/GpOM7PIVmMRg/rXz64woIBDZ8LOt9a98q/nQ Z/DkA7zgvL/ANDif0fIv7MKkhxidoxCo49U77QK+aPF9Pl+4f5JHsBxfmvceLyb/n8n0 +rDWBmPyCmNPzgVa8ISkcYWGiMJD9oIsnaP9SHUvj0GVI97Ba+o2b6xhWQwkcOAc2Yya 4Ocg== 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=xBi0K8XMfrkiT9gqtw/+dbC1kcNTOyRYx0yDPVsfsQ0=; b=qCVqiy2U9fcIHK7Q8qB7q9yhK0+NDcS4ngk9Id3UJGkINArG2P18K+xY7YXB1sSYdq nulB4v1MTOlRgWWBAejHGF/I1iPeuB8VAg4OIJBGC6EYG5WeO/l/VNWP9vnCxFrQ+CLE h+Mx0yqZP9x8QedCKx7N7mahlVVs3hSAgW2yHxKPgkka9sLtqTVJVmgWuB8ds+almT5P RpvnUkYH4ipucXScBR+4APD50d8q0Kixbjek9h52yurcNoI5kJ0URUvBO3zl41Wlv4dx jg6X13I7detY3oXKvSrjjbxtb6k6XMXiUi3gG8pb2qoh5Qxk2T0cKm2R1/D4UQi01qIP dpTg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=sWbcFCB4; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id bb12-v6si5598024plb.164.2018.03.16.01.44.15; Fri, 16 Mar 2018 01:44:29 -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=@infradead.org header.s=bombadil.20170209 header.b=sWbcFCB4; 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 S1753160AbeCPInM (ORCPT + 99 others); Fri, 16 Mar 2018 04:43:12 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:48286 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751236AbeCPInK (ORCPT ); Fri, 16 Mar 2018 04:43:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=xBi0K8XMfrkiT9gqtw/+dbC1kcNTOyRYx0yDPVsfsQ0=; b=sWbcFCB4PXKEmSQuX3p0ydRrk f1oXqq7VCcPzUgNMGLYgeOb+CgXjlMKC9YZ91RxKSSnTuafNX9W68kHZFnIV3li5mRxUA4jfoeotn GUR/SpdQkITzqOtGEtBBWaK3JJSi4XTfZb0vcHvl4UECMQ1SfuUA2WAZQlcT+WG3blDqmPxeY14zP QZGr8UFte7DAo+eDklnJi3hRAoSAkH4pkY5H3NiXR8brMKSMUjoUDQMXO46XACKvPtDFjSb28Qs4J E4TUbJFUSbEU7QArSEuGm71jaSAORP9fBQNeggjByTngk10mYvI2xu4i006BRStsP9div8oDTu76y prMHh965A==; Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1ewkxA-0004az-Ah; Fri, 16 Mar 2018 08:43:08 +0000 Date: Fri, 16 Mar 2018 01:43:08 -0700 From: Christoph Hellwig To: Dominik Brodowski Cc: linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, viro@zeniv.linux.org.uk, luto@kernel.org, mingo@kernel.org, akpm@linux-foundation.org, arnd@arndb.de, Thomas Gleixner , Ingo Molnar , Jiri Slaby , x86@kernel.org Subject: Re: [PATCH v2 13/36] x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm() Message-ID: <20180316084308.GB4151@infradead.org> References: <20180315190529.20943-1-linux@dominikbrodowski.net> <20180315190529.20943-14-linux@dominikbrodowski.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180315190529.20943-14-linux@dominikbrodowski.net> User-Agent: Mutt/1.9.2 (2017-12-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Mar 15, 2018 at 08:05:06PM +0100, Dominik Brodowski wrote: > Using this helper allows us to avoid the in-kernel calls to the sys_ioperm() > syscall. Why not do_ioperm or kernel_ioperm as for most other syscalls?