Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265437AbUABJHP (ORCPT ); Fri, 2 Jan 2004 04:07:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265463AbUABJHP (ORCPT ); Fri, 2 Jan 2004 04:07:15 -0500 Received: from node-d-1fcf.a2000.nl ([62.195.31.207]:55936 "EHLO laptop.fenrus.com") by vger.kernel.org with ESMTP id S265437AbUABJHN (ORCPT ); Fri, 2 Jan 2004 04:07:13 -0500 Subject: Re: ext2 on a CD-RW From: Arjan van de Ven Reply-To: arjanv@redhat.com To: Peter Osterlund Cc: Andrew Morton , axboe@suse.de, packet-writing@suse.com, linux-kernel@vger.kernel.org In-Reply-To: References: <20040101162427.4c6c020b.akpm@osdl.org> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-aSMuloVyP2kmDoPUHlE8" Organization: Red Hat, Inc. Message-Id: <1073034412.4429.1.camel@laptop.fenrus.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 (1.4.5-7) Date: Fri, 02 Jan 2004 10:06:52 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1264 Lines: 36 --=-aSMuloVyP2kmDoPUHlE8 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Fri, 2004-01-02 at 02:30, Peter Osterlund wrote: > The packet writing code has the restriction that a bio must not span a > packet boundary. (A packet is 32*2048 bytes.) If the page when mapped > to disk starts 2kb before a packet boundary, merge_bvec_fn therefore > returns 2048, which is less than len, which is 4096 if the whole page > is mapped, so the bio_add_page() call fails. devicemapper has similar restrictions for raid0 format; in that case it's device-mappers job to split the page/bio. Just as it is UDF's task to do the same I suspect... --=-aSMuloVyP2kmDoPUHlE8 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQA/9TSsxULwo51rQBIRAh2qAJ9xWevQsSBzVVq/hcv2FrH6OQkLlwCfa8+i o7gh8z7PRbUxO/v3xs8tyes= =152j -----END PGP SIGNATURE----- --=-aSMuloVyP2kmDoPUHlE8-- - 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/