ACK: [SRU T/U/V] Fix vesafb performance regression

[Tim Gardner]

On 04/21/2015 06:54 AM, Stefan Bader wrote:
> BugLink: http://bugs.launchpad.net/bugs/1434581
>
> In a release long long ago, we modified vesafb to be compilable as
> a module. Starting with Oneiric the default mtrr setting was changed
> (apparently on maintainers advice) to write-combining. This way we
> probably still would boot merrily after if not for dropping the change
> to make vesafb a module between Saucy and Trusty. By then the mtrr
> change had been devoured by the module patch and so the framebuffer
> mapping was no longer cached by default.
>
> Assuming that O->S was long enough to declare this stable, the attached
> patches re-introduce the new default. The only difference between the
> Trusty variant and the other is that vesafb.c got relocated.
>
> -Stefan
>
>


-- 
Tim Gardner tim.gardner at canonical.com