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

[Andrew Morton]

Ingo Molnar <mingo@xxxxxxxxxx> wrote:
>
> The
>  kernel doesnt in fact know about the first use of a futex: no-contention
>  futexes have zero kernel footprint. This is the big plus of them. So i'd
>  really favor some sort of hashing method and no limits, that way the Linux
>  VM is extended and every VM address is waitable and wakable on - a pretty
>  powerful concept.

What about the option of not pinning the pages at all: just fault
them in when required?

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