Re: 4MB pages and framebuffer access, x11perf results, 2.1.125

MOLNAR Ingo (mingo@chiara.csoma.elte.hu)
Thu, 29 Oct 1998 18:33:27 +0100 (CET)


On Thu, 29 Oct 1998, Linus Torvalds wrote:

> This is partly why I'd like a separate interface, but on the other hand
> it's also something that we can really easily do just with a normal mmap:
> the "get_unmapped_area()" thing is very much designed to allow us to have
> a policy on how to align things (right now it doesn't).

we do have a policy of alignment and granularity, but it's not very
explicit because it's always the same: 4k granularity. As vmas are ranges
of bytes, there are 4k alignment issues.

-- mingo

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