Re: [PATCH 2/2] Futex non-page-pinning fix

[Andrew Morton]

Rusty Russell <rusty@xxxxxxxxxxxxxxx> wrote:
>
> Well, the patch I posted adds a futex_rehash to ___add_to_page_cache,

That's a real hotpath.  Certainly we couldn't take a global lock there.

Need to find a way to rehash when moving pages around only in swapcache.  I
thought the earlier patches were structured that way?


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