linux-kernel - Re: [RFC/PATCH 1/1] ubi: Add ubiblock driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Fri, 30 Nov 2012 13:12:27 +0200
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Ezequiel Garcia <elezegarcia@...il.com>
Cc:	richard -rw- weinberger <richard.weinberger@...il.com>,
	linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
	michael.opdenacker@...e-electrons.com, dwmw2@...radead.org,
	Tim Bird <tim.bird@...sony.com>
Subject: Re: [RFC/PATCH 1/1] ubi: Add ubiblock driver

On Wed, 2012-11-21 at 07:20 -0300, Ezequiel Garcia wrote:
> Yes, I thought of this.
> 
> For now, I decided to keep the implementation as simple as possible.

WRT atomic LEB caches and barriers - I guess if there are users who
would prefer higher I/O speed to the power-cut tolerance, you could:

1. ignore I/O barriers
2. use plain leb_unmap/leb_write instead of atomic leb change, which is
faster.

There could be a switch, probably an ioctl? But this is not very
important now, I am just throwing an idea.

-- 
Best Regards,
Artem Bityutskiy

Download attachment "signature.asc" of type "application/pgp-signature" (837 bytes)