Received: by 10.213.65.68 with SMTP id h4csp251500imn; Fri, 16 Mar 2018 01:49:08 -0700 (PDT) X-Google-Smtp-Source: AG47ELuNgYVh8YJNlH2Vl5osqwyjL4Ac81u9MtB4IyBP4DVeMiVsESYAiK6jBLsUQJL/dlGTQZk1 X-Received: by 2002:a17:902:1763:: with SMTP id i90-v6mr1179735pli.309.1521190148627; Fri, 16 Mar 2018 01:49:08 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521190148; cv=none; d=google.com; s=arc-20160816; b=Gvj9ovnKvH62ydJ+Zv7jTmJIFhDl5xjuRtS76xXEx2WNRlY9hGPbMPpQfPYjKQyGII eYl0++Pz0mIPkKSu8UrXe1h0iQAtAFJ1hPzizFVHNSJZSuUCr4m0kwJjH4mFYQguS/9E zFONmPAXaF9j5VV4VrgI7Tc1xpShaT8fi19u+69EzzEevpz8Yy2ZgzvfMIc8eDjj9udQ qvjPdEU0toAYbt1QXB4M0fu2Hinh6hR6rfB+6te7q/Z718fD1e6f+UTWegO79pwk+Yxo 7M6+Bzp/2SIGa5+lTR1izHG1mYt9xPjXqGJ7hY3nA6CGfJh7BmticnuLhlgFVvyzokVm nF0g== 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=YqHz6mAW4FlPFEmzKX04ubYurHa6AUJHCiyq/ASCMX4=; b=d/UizLrjJ5yo9l2OCCrrI5iMNT4/56TgADSN+jjoxN7IIZ81DxvMT4MxlpY7+UXUxn Sg/bVqWhu+sdzal/dZIjv8pIROIyDUBziuJI0W3sHJYMPuyiPN682ssk5BvgDquTE8i6 rpQDi7cldgvBTeqtdsAJsqYc8Xz/JPbXYMTyAKebnyd27nXWyqnS8VzLjW0G64ZS7ox6 EWm9kKy+Wq5KMwYB0xvfs5Rroj9596slwvRJzyVlpu28hRbr3+rSeP1W8/yEcetKwz9Y En01RcRzgYs0pcA8PJmSVKdJD1a1X/AylxPdKsxG5s1XcdLYKz1r/GS4IrNGLEGVa4mk DGaw== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=K/hz9Lba; 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 44-v6si5790886plb.635.2018.03.16.01.48.54; Fri, 16 Mar 2018 01:49:08 -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=K/hz9Lba; 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 S1753130AbeCPIrx (ORCPT + 99 others); Fri, 16 Mar 2018 04:47:53 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:52220 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750748AbeCPIru (ORCPT ); Fri, 16 Mar 2018 04:47:50 -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=YqHz6mAW4FlPFEmzKX04ubYurHa6AUJHCiyq/ASCMX4=; b=K/hz9LbaqYetqt7/coCUKD2g/ vYshVtJIkrEjRDiaLQIv6ke0tckGr0z/Eh3evzqqsWqdxjRK/EzOyDTHwRhBDp6HPW/BBftirbv+P QCc1h0vparpNQPfk3Zay6kq8BJfjg4qCtR+m4Ax64AoV42N/yTb1P2YKi9Esd8qMVqaS3Y+zpCULs nGYt8D6ZcJEw1kjlOm2OkPLWxvbKF98M9uXiuMrCyH+Ndykh9Kvcr+HxP8fIfOf7ElIt3Cocehrlp mQ8va7kYzehIF+8aVQuTwVEaniT/IkqhX10BXdA0kHMswQn2CR5wU5P0V1Rb7o/yFx29DSJXgY4EW 5d0xWTslw==; Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1ewl1i-0006r8-GQ; Fri, 16 Mar 2018 08:47:50 +0000 Date: Fri, 16 Mar 2018 01:47:50 -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 Subject: Re: [PATCH v2 15/36] fs: add ksys_umount() helper; remove in-kernel call to sys_umount() Message-ID: <20180316084750.GD4151@infradead.org> References: <20180315190529.20943-1-linux@dominikbrodowski.net> <20180315190529.20943-16-linux@dominikbrodowski.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180315190529.20943-16-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 08:05:08PM +0100, Dominik Brodowski wrote: > Using this helper allows us to avoid the in-kernel call to the sys_umount() > syscall. kern_unmount, please. And make it operate on kernel pointers please.