From mboxrd@z Thu Jan 1 00:00:00 1970 From: Artem Bityutskiy Subject: RE: [ATTEND] Date: Wed, 08 Feb 2012 22:20:03 +0200 Message-ID: <1328732432.2101.3.camel@koala> References: Reply-To: dedekind1@gmail.com Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-sMXnraNMJkJW9Z3JHste" Cc: Kent Overstreet , lsf-pc@lists.linux-foundation.org, linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org, dedekind@infradead.org To: "Loke, Chetan" Return-path: Received: from mail-lpp01m020-f174.google.com ([209.85.217.174]:39778 "EHLO mail-lpp01m020-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751706Ab2BHUUf (ORCPT ); Wed, 8 Feb 2012 15:20:35 -0500 In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-ID: --=-sMXnraNMJkJW9Z3JHste Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2012-02-08 at 13:15 -0500, Loke, Chetan wrote: > Exactly. So what I'm saying is, if UBI also does ftl then you could be > duplicating code/efforts. UBI is already upstream. Now whether it > supports everything we want is another thing. > (and that's why I CC'd its author). So pieces that aren't there could be > implemented. But they also talk about erase-counters etc and I don't > know if I saw something similar in your bucket_struct[or foo_struct]. > May be its somewhere else. Hi, UBI is not an FTL, but it implements a lot of things a decent FTL would also need to implement. And implementing FTL on top of UBI would be much simpler than on top of a raw flash (I assume you are discussing a flash?). UBI has it's own strong sides and limitations. Here I described a simple FTL on top of UBI (long time ago): http://lists.infradead.org/pipermail/linux-mtd/2008-January/020381.html --=20 Best Regards, Artem Bityutskiy --=-sMXnraNMJkJW9Z3JHste Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAABAgAGBQJPMtjzAAoJEJtuLFy+q7feoQEH/jn1cQ4icZdohrF3w0IH9W7H IWgCN3hGVat5zO7j1rewUQxjw07xmvL7+2U6wM64BgiXaqbGGmmnFHSF7OZ5r6hs SAlUfekx1MwDRseigq8pjqFcwhcnCp3bINVeWJ7ITHY/t1E6LQaO5Msc09Zdf+wa STqnQo39SqADV8nJSEQe7mEjGGHL23FgQrt8CHDi8b67oH+XGFIA/FIrOSHorLvP WTxFPAcPFsqPs7AGSxm1fpNA2CEJ8PoLuHuVKECq7EKRmteL54s3xoO0TveLM3xZ NA3WC1pRlsDe7I+r46+/j61K6ZBMppYabh4l0vTMmw0KtaQuAkUiRsxHDCBmKow= =4p4M -----END PGP SIGNATURE----- --=-sMXnraNMJkJW9Z3JHste--