From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from woodpecker.gentoo.org ([2001:470:ea4a:1:214:c2ff:fe64:b2d3] helo=smtp.gentoo.org) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UTAmu-0005DF-5N for linux-mtd@lists.infradead.org; Fri, 19 Apr 2013 12:51:36 +0000 From: Mike Frysinger To: dedekind1@gmail.com Subject: Re: [RFC/PATCH v2] ubi: Add ubiblock read-write driver Date: Fri, 19 Apr 2013 08:53:50 -0400 References: <1355314912-9321-1-git-send-email-elezegarcia@gmail.com> <201304190757.13688.vapier@gentoo.org> <1366374673.29520.125.camel@sauron.fi.intel.com> In-Reply-To: <1366374673.29520.125.camel@sauron.fi.intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart3518644.8JrIyZN0I1"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201304190853.54402.vapier@gentoo.org> Cc: Thomas Petazzoni , Ezequiel Garcia , "richard.weinberger@gmail.com" , Michael Opdenacker , "linux-mtd@lists.infradead.org" , "Gupta, Pekon" , Ezequiel Garcia , Tim Bird List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --nextPart3518644.8JrIyZN0I1 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable On Friday 19 April 2013 08:31:13 Artem Bityutskiy wrote: > On Fri, 2013-04-19 at 07:57 -0400, Mike Frysinger wrote: > > the reason we're talking about not allowing write support at the > > *block* layer > > is because it's questionable how many people actually want this, the > > performance isn't good (compared to native flash filesystems), and > > because the > > write/wear characteristics are unknown. >=20 > My opinion that unless people demonstrate that they need this, e.g. in a > product, etc, we should not merge this stuff. >=20 > We recently merged fastmap, which is a big chunk of code, and it looks > like no one really needs it. There was a problem report, and Richard > promised to look, but did not. I do not blame him, he is a busy guy. But > this shoes that this feature is not really needed, while adds > maintenance burden. >=20 > To put it differently, I do recommend to merge more UBI-related code > without a solid user-base. also to be clear, i plan on using UBI block in read-only mode, so i'd like = to=20 see an ubiblock driver merged =2Dmike --nextPart3518644.8JrIyZN0I1 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) iQIcBAABAgAGBQJRcT5iAAoJEEFjO5/oN/WB26wP/i6aTsFbJGoqchQwT17UbwNV c6csiC8XC72r/8XXfnG5tJU9ULPEk6rQJtqVOxkYPDFR3SeUdX0nc8YrhAJTJUOh RWvaQ1QqCqiFvAAVFiyUL6A8KQLWmt8T4B0+91gEbulf0G0Q6z27F9hy6YXl+08q efdV6XL5smBLltyS6ogew+RB3ZhzJvMXIRSJH1I71TqUTECgVH4oHs9IcRaMH52O IriJzQCzUPzi+aevFi5hyIQFNYiQlYaTLH8nhDlDt8Y34Yqu6q6L6Q17U6DCxhBN c4ve5WkPI/sb0y7gNXEivPr5yZwOYnAQxuoRBi6PhbDob90Sjiy8phIhSSSxkwhA FVJTAmqF187YdCuhySF+0iMZRbYrYsz73xq6eaDhhPfuYF5aPuKz83CadaBPE7t5 BKoUTyvzCkbmHQsS7i+TQCO5ZUshTTMoHSFq4++J4y8iKllwzRDA5KleqYXpFTRe 1HX/0oTIUGyDF/4VgxEXapRG8m03GPmjB56M93OuLMHcP6iDdVJimt53i3qw5IKJ 58PQa8j3TUyqZVkYiJvMx+EDomZwJF6RLpgtzOC181CkumpEW999KSkbJtlHd+xY QbFpdzSMTfa8qzgwP6kDC1jGljBCwcvBd/o/azVCsv/lGcNGCuaiuaPC/Ljp2hKw BzW4oTXd9Nu0JRo0wlVZ =Zn/0 -----END PGP SIGNATURE----- --nextPart3518644.8JrIyZN0I1--