From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030416AbWGTX3a (ORCPT ); Thu, 20 Jul 2006 19:29:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030414AbWGTX3a (ORCPT ); Thu, 20 Jul 2006 19:29:30 -0400 Received: from nf-out-0910.google.com ([64.233.182.188]:45866 "EHLO nf-out-0910.google.com") by vger.kernel.org with ESMTP id S1030413AbWGTX33 (ORCPT ); Thu, 20 Jul 2006 19:29:29 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=pi7OHwy7K/MSkbrPAXphSDuyGt2SSizMfJHJ1PtUI4Dj3ENEkOGAxKdUbsLzHWF9bilPlTG3V5hZSQLQ4Dh9xt3439h1Sq8gx5yuWRMIe36RXb2DSZndlneThN6k0+i07OoXBOv6DkOSMCC3gFwNFtu+Rpm7b6qo2z/LYJeCSvY= Message-ID: <195c7a900607201601m58d078pee808089b8e6b47d@mail.gmail.com> Date: Thu, 20 Jul 2006 23:01:34 +0000 From: "roucaries bastien" To: 7eggert@gmx.de Subject: Re: [RFC/PATCH] revoke/frevoke system calls Cc: "Pekka J Enberg" , alan@lxorguk.ukuu.org.uk, tytso@mit.edu, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <6AFvY-7ZK-15@gated-at.bofh.it> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 7/20/06, Bodo Eggert <7eggert@elstempel.de> wrote: > Pekka J Enberg wrote: > > From: Pekka Enberg > > > This patch implements the revoke(2) and frevoke(2) system calls for all > > types of files. We revoke files in two passes: first we scan all open > > files that refer to the inode and substitute the struct file pointer in fd > > table with NULL causing all subsequent operations on that fd to fail. > > After we have done that to all file descriptors, we close the files and > > take down mmaps. > > RFC2: Make umount -f work on local fs using this feature. RFC3: use preliminary work about umount -f in order to get revoke for free. See for instance http://developer.osdl.org/dev/fumount/kernel2/patches/2.6.12/1/forced-unmount-2.6.12-1.patch