Re: can device drivers return non-ram via vm_ops->nopage?

[Chris Wedgwood]

On Sat, Mar 20, 2004 at 09:39:51AM -0800, Linus Torvalds wrote:

> If a driver wants to map non-RAM pages, that's perfectly ok, but it
> MUST NOT happen through "nopage()". The driver should map them with
> "remap_page_range()", and thus never take a page fault for such
> pages at all.

This is what the fetchop driver does.


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