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

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Message-ID: <1354273947.30168.91.camel@sauron.fi.intel.com>
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

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