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From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 24 Apr 2017 11:41:51 -0700
Message-ID: <CAPcyv4iFhpSo-nbypHuZVZz7S92PwPx17bxUgMsksRHYPQkqEA@mail.gmail.com>
Subject: Re: get_zone_device_page() in get_page() and page_cache_get_speculative()
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
        Linux MM <linux-mm@kvack.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
        Steve Capper <steve.capper@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Peter Zijlstra <peterz@infradead.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
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        Linus Torvalds <torvalds@linux-foundation.org>,
        Michal Hocko <mhocko@suse.cz>, linux-tip-commits@vger.kernel.org
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On Mon, Apr 24, 2017 at 11:25 AM, Kirill A. Shutemov
<kirill.shutemov@linux.intel.com> wrote:
> On Mon, Apr 24, 2017 at 09:01:58PM +0300, Kirill A. Shutemov wrote:
>> On Mon, Apr 24, 2017 at 10:47:43AM -0700, Dan Williams wrote:
>> I think it's still better to do it on page_ref_* level.
>
> Something like patch below? What do you think?

>>From a quick glance, I think this looks like the right way to go.