From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932965AbXABIRM (ORCPT ); Tue, 2 Jan 2007 03:17:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932971AbXABIRM (ORCPT ); Tue, 2 Jan 2007 03:17:12 -0500 Received: from smtp-out001.kontent.com ([81.88.40.215]:51185 "EHLO smtp-out.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932965AbXABIRL (ORCPT ); Tue, 2 Jan 2007 03:17:11 -0500 From: Oliver Neukum To: linux-kernel@vger.kernel.org Subject: doubts on file_pos_write() Date: Tue, 2 Jan 2007 09:17:12 +0100 User-Agent: KMail/1.8 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200701020917.12896.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, as loff_t is a 64 bit value, it seems to me to a simple assignment in file_pos_write() means that the offset can be turned into garbage doing concurrent reads with shared fds around the 4GB limit on 32 bit architectures. Comments? Regards Oliver