Re: [PATCH v3 1/4] mm: introduce get_user_pages_longterm

[Jason Gunthorpe]

On Fri, Dec 01, 2017 at 08:29:53AM -0800, Dan Williams wrote:
> > And maybe we should think about moving the rlimit accounting into this
> > new function too someday?
> 
> DAX pages are not accounted in any rlimit because they are statically
> allocated reserved memory regions.

I mean, unrelated to DAX, any user of get_user_pages_longterm should
respect the memlock rlimit and that check is shared code.

Jason