From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from a.ns.miles-group.at ([95.130.255.143] helo=radon.swed.at) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1SaMwj-0006Kb-6j for linux-mtd@lists.infradead.org; Fri, 01 Jun 2012 08:10:57 +0000 Message-ID: <4FC8790D.8070801@nod.at> Date: Fri, 01 Jun 2012 10:10:53 +0200 From: Richard Weinberger MIME-Version: 1.0 To: dedekind1@gmail.com Subject: Re: [PATCH] [RFC] UBI: Implement Fastmap support References: <1337771191-95358-1-git-send-email-richard@nod.at> <1337771191-95358-2-git-send-email-richard@nod.at> <4FC85780.9070200@intel.com> <4FC8768E.1010703@nod.at> <1338538244.2536.147.camel@sauron.fi.intel.com> In-Reply-To: <1338538244.2536.147.camel@sauron.fi.intel.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig1E30CB438074B695CEEF2453" Cc: Adrian Hunter , linux-kernel@vger.kernel.org, Heinz.Egger@linutronix.de, linux-mtd@lists.infradead.org, tim.bird@am.sony.com, tglx@linutronix.de List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig1E30CB438074B695CEEF2453 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Am 01.06.2012 10:10, schrieb Artem Bityutskiy: > On Fri, 2012-06-01 at 10:00 +0200, Richard Weinberger wrote: >> True. But why is this a problem? >> If we can recovers using a full scan after a power cut we are fine. >=20 > Does fastmap have zero power-cut tolerance by design? Yes. E.g. If the fastmap was not written corretly the CRC will not match and w= e fall back to scanning. That's why fastmap tries hard to fallback to scanning if any= thing goes wrong. Why should we make fastmap even more complicated than it already is? Thanks, //richard --------------enig1E30CB438074B695CEEF2453 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQEcBAEBAgAGBQJPyHkOAAoJEN9758yqZn9eGcwH/jiz+9N7xd07v8Ttx7fHmZxh wTMw1IbIfBfZezWLhHjn2UOv3TG2UUdJTq97ZVtWjX6KXLDo8v/kaB8V1/aKELCl uWlIvjkZZ/MmhKgkUu/ektm0lnc4U6oWS+FAo8pQDgAOpoIzqfWLx9k5E3ozAJO0 jGrVPoAcNSKzjQOtwEkJR2P5AOEAWSoVOyAo2UKyMKdEbF6Synk4UScPSVt+eRWs fbdgDxnY+izwe3VjBdM4Fxl8H+u2wN5Z5hRTGuQ1GFlS0Q0uEp7HGZ50uvlVAcaa 3PIcDSIA4q5yHvkna5aahiLN1qSFv9Bm0QfThznLJM9zW+qyG63HQfwR74Hq08M= =mrC6 -----END PGP SIGNATURE----- --------------enig1E30CB438074B695CEEF2453--