Re: [PATCH] Mutilated form of Andi Kleen's AMD prefetch errata patch

Jamie Lokier
2003-10-01T09:33:52Z

Hugh Dickins wrote:
> On Wed, 1 Oct 2003, Jamie Lokier wrote:
> >
> > See recent message from me. All you need is a check "address >=
> > TASK_SIZE", which is thread already at the start of do_page_fault.
>
> What about the 4G+4G split?

Whoever is looking after the 4G+4G patch can deal with it, presumably.
It'll be the same condition ad 4G+4G uses to decide if it's an access
to userspace (needing a search of the vma list), or not.

-- Jamie