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Message-ID: <20171201163140.GJ7754@ziepe.ca> Date: Fri, 1 Dec 2017 09:31:40 -0700 From: Jason Gunthorpe <jgg@...pe.ca> To: Dan Williams <dan.j.williams@...el.com> Cc: Michal Hocko <mhocko@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, Linux MM <linux-mm@...ck.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Christoph Hellwig <hch@....de>, "stable@...r.kernel.org" <stable@...r.kernel.org>, "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>, linux-rdma <linux-rdma@...r.kernel.org> Subject: Re: [PATCH v3 1/4] mm: introduce get_user_pages_longterm 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
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