Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755191AbXFMFpk (ORCPT ); Wed, 13 Jun 2007 01:45:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753048AbXFMFpa (ORCPT ); Wed, 13 Jun 2007 01:45:30 -0400 Received: from ug-out-1314.google.com ([66.249.92.170]:30343 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751577AbXFMFp3 (ORCPT ); Wed, 13 Jun 2007 01:45:29 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=K9umYoUcUANHCux6iKxLeWnUI+/kJ2t2utUOIDcINl2qvIQ6Xt9BbZbJ/kCM7Xc9A5KFXjVeyG2Z9ggqEILjLf+I+wWdZgNREccm05ECHoVRA84KiiZPKhu9K9i/0Y570nPoxl0LHMhvHPXZnpVse58FjQLdgdQqi0ogwzfaIuw= Message-ID: <787b0d920706122245j3a2ff7e8ja611ecf41cc67a4c@mail.gmail.com> Date: Wed, 13 Jun 2007 01:45:28 -0400 From: "Albert Cahalan" To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, chris.mason@oracle.com, hch@infradead.org, snitzer@gmail.com Subject: Re: [ANNOUNCE] Btrfs: a copy on write, snapshotting FS MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 903 Lines: 22 Neat! It's great to see somebody else waking up to the idea that storage media is NOT to be trusted. Judging by the design paper, it looks like your structs have some alignment problems. The usual wishlist: * inode-to-pathnames mapping * a subvolume that is a single file (disk image, database, etc.) * directory indexes to better support Wine and Samba * secure delete via destruction of per-file or per-block random crypto keys * fast (seekless) access to normal-sized SE Linux data * atomic creation of copy-on-write directory trees * immutable bits like UFS has * hole punch ability * insert/delete ability (add/remove a chunk in the middle of a file) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/