From: Goswin von Brederlow Subject: Re: htree indexing and 64-bit file systems Date: Sat, 07 Feb 2009 14:06:56 +0100 Message-ID: <87vdrmiefj.fsf@frosties.localdomain> References: <20090203222202.GK20654@shell> <20090203233108.GW14762@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: linux-ext4@vger.kernel.org Return-path: Received: from fmmailgate02.web.de ([217.72.192.227]:52937 "EHLO fmmailgate02.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753216AbZBGNG7 (ORCPT ); Sat, 7 Feb 2009 08:06:59 -0500 Received: from smtp05.web.de (fmsmtp05.dlan.cinetic.de [172.20.4.166]) by fmmailgate02.web.de (Postfix) with ESMTP id DD783FA18F68 for ; Sat, 7 Feb 2009 14:06:57 +0100 (CET) Received: from [78.43.226.218] (helo=frosties.localdomain) by smtp05.web.de with asmtp (TLSv1:AES256-SHA:256) (WEB.DE 4.110 #277) id 1LVmtd-0003uQ-00 for linux-ext4@vger.kernel.org; Sat, 07 Feb 2009 14:06:57 +0100 Received: from mrvn by frosties.localdomain with local (Exim 4.69) (envelope-from ) id 1LVmtd-00019i-3Y for linux-ext4@vger.kernel.org; Sat, 07 Feb 2009 14:06:57 +0100 In-Reply-To: <20090203233108.GW14762@mit.edu> (Theodore Tso's message of "Tue, 3 Feb 2009 18:31:08 -0500") Sender: linux-ext4-owner@vger.kernel.org List-ID: Theodore Tso writes: > On Tue, Feb 03, 2009 at 05:22:02PM -0500, Valerie Aurora Henson wrote: >> I've just been ignoring htree indexing for now, but the regression >> failure in Ted's rebased 64bit tree looks suspiciously htree-related. >> >> What's the interaction between htree and 64 bit file systems? What >> needs to change, if anything? > > There shouldn't be any. The block numbers used in htree are logical > block numbers (i.e., block 0 is the first block in the directory, > block 1 is the 2nd block i the directory, etc.) > > - Ted What if the directory is REALLY HUGE? :) Say >68.719.476.736 files. Can ext4 64bit have directories >8TiB? MfG Goswin