linux-kernel - Re: [PATCH 10/15] IB/core: disable memory registration of fileystem-dax vmas

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Message-ID: <CAPcyv4g0-kXCXzGo6=3fwaRJTM_4N8BFp+-W71t4Vd_to7LDBA@mail.gmail.com>
Date:   Thu, 2 Nov 2017 14:06:57 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Christoph Hellwig <hch@....de>
Cc:     "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
        Sean Hefty <sean.hefty@...el.com>, linux-xfs@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-rdma <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jeff Moyer <jmoyer@...hat.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
        Linux MM <linux-mm@...ck.org>,
        Doug Ledford <dledford@...hat.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>
Subject: Re: [PATCH 10/15] IB/core: disable memory registration of
 fileystem-dax vmas

On Thu, Nov 2, 2017 at 1:13 PM, Christoph Hellwig <hch@....de> wrote:
> Any chance we could add a new get_user_pages_longerm or similar
> helper instead of opencoding this in the various callers?

Sounds like a great idea to me, I'll take a look...