Re: [PATCH] .text page fault SMP scalability optimization

On Sun, Oct 30, 2005 at 05:17:31PM +1100, Benjamin Herrenschmidt wrote:
> Note that we should really pass more than just "write_access" from the
> arch code. We could make good use of "execute" in some cases as well,

Indeed. Bitflags sounds the most efficient way to do that. Currently
write_access is 0/1 value only.

> also knowing wether this is a real fault or the result of
> get_user_pages() (in some case, the former could use more agressive TLB
> pre-loading, not the later). Finally, those infos should be passed to
> update_mmu_cache().

Interesting.
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• References:
  • [PATCH] .text page fault SMP scalability optimization
    • From: Andrea Arcangeli <[email protected]>
  • Re: [PATCH] .text page fault SMP scalability optimization
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] .text page fault SMP scalability optimization
    • From: Andrea Arcangeli <[email protected]>
  • Re: [PATCH] .text page fault SMP scalability optimization
    • From: Benjamin Herrenschmidt <[email protected]>

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