Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation

Arjan van de Ven <[email protected]> wrote:
>
> > Why do you call mlock() and get_user_pages()?  In our code, we only call mlock(), and the 
> > memory is pinned. 
> 
> this is a myth; linux is free to move the page about in physical memory
> even if it's mlock()ed!!

eh?  I guess the kernel _is_ free to move the page about, but it doesn't.

We might do at some time in the future for memory hotplug, I guess.
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• References:
  • [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Troy Benjegerdes <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Roland Dreier <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Timur Tabi <[email protected]>
  • Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
    • From: Arjan van de Ven <[email protected]>

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