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Date: Thu, 30 Nov 2017 12:01:17 -0700
From: Jason Gunthorpe <jgg@ziepe.ca>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Michal Hocko <mhocko@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
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Subject: Re: [PATCH v3 1/4] mm: introduce get_user_pages_longterm
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On Thu, Nov 30, 2017 at 10:32:42AM -0800, Dan Williams wrote:
> > Who and how many LRU pages can pin that way and how do you prevent nasty
> > users to DoS systems this way?
> 
> I assume this is something the RDMA community has had to contend with?
> I'm not an RDMA person, I'm just here to fix dax.

The RDMA implementation respects the mlock rlimit

Jason