Re: [PATCH 0/4] futex: get_user_pages_fast() for shared futexes

[Ingo Molnar]

* Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:

> Since get_user_pages_fast() made it in, I thought to give this another 
> try. Lightly tested by disabling the private futexes and running some 
> java proglets.

hm, very interesting. Since this is an important futex usecase i started 
testing it in tip/core/futexes:

 cd33272: futex: cleanup fshared
 a135356: futex: use fast_gup()
 39ce77b: futex: reduce mmap_sem usage
 0d7a336: futex: rely on get_user_pages() for shared futexes

Nick, it would be nice to get an Acked-by/Reviewed-by from you, before 
we think about whether it should go upstream.

	Ingo
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