From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755517Ab1ESLFc (ORCPT ); Thu, 19 May 2011 07:05:32 -0400 Received: from verein.lst.de ([213.95.11.211]:41525 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754718Ab1ESLFb (ORCPT ); Thu, 19 May 2011 07:05:31 -0400 Date: Thu, 19 May 2011 13:05:31 +0200 From: Christoph Hellwig To: Sunil Mushran Cc: josef@redhat.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, viro@ZenIV.linux.org.uk, ocfs2-devel@oss.oracle.com Subject: Re: [Ocfs2-devel] [PATCH] ocfs2: Implement llseek() Message-ID: <20110519110531.GB6357@lst.de> References: <1305773084-19296-1-git-send-email-sunil.mushran@oracle.com> <1305773084-19296-3-git-send-email-sunil.mushran@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1305773084-19296-3-git-send-email-sunil.mushran@oracle.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 18, 2011 at 07:44:44PM -0700, Sunil Mushran wrote: > Unwritten (preallocated) extents are considered holes because the file system > treats reads to such regions in the same way as it does to holes. How does this work for the case of an unwrittent extent that has been written to in the pagecache but not converted yet? Y'know the big data corruption and flamewar that started all this?