Re: pipe/page fault oddness.

[Rik van Riel]

On 10/01/2014 12:18 PM, Linus Torvalds wrote:

> Seriously, why can't we just do this, and throw away all the crap that
> is "numa special case". This would make all the random games in
> change_pte_range() just go away entirely, because the whole NUMA thing
> really wouldn't be a special case for the pte AT ALL any more. All it
> would be is that a pte could be marked PROT_NONE even if the
> vma->vm_flags aren't.

That's what I suggested quite a while back, but IIRC either
Peter or Mel brought up a reason why this was not possible.

Unfortunately I do not remember what it was, just that I
was convinced by it at the time...
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