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

From: Andrew Morton
Date: Thu Apr 28 2005 - 19:57:23 EST

Arjan van de Ven <arjan@xxxxxxxxxxxxx> 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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