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Date: Mon, 26 Dec 2011 20:07:39 +0400
From: Pavel Emelyanov <xemul@parallels.com>
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Subject: Re: [PATCH 2/3] mincore: Introduce the MINCORE_ANON bit
References: <4EF78B6A.8020904@parallels.com> <4EF78B99.1020109@parallels.com> <CAHGf_=r5mmUJUaQLKgrY1rf9Qx0gO0hEJaHFehm5Zz7ZKMYUkQ@mail.gmail.com>
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Sender: owner-linux-mm@kvack.org
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To: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Linux MM <linux-mm@kvack.org>, Hugh Dickins <hughd@google.com>, Andrea Arcangeli <aarcange@redhat.com>, Johannes Weiner <hannes@cmpxchg.org>

On 12/26/2011 04:05 AM, KOSAKI Motohiro wrote:
>> +static unsigned char mincore_pte(struct vm_area_struct *vma, unsigned long addr, pte_t pte)
>> +{
>> +       struct page *pg;
>> +
>> +       pg = vm_normal_page(vma, addr, pte);
>> +       if (!pg)
>> +               return 0;
>> +       else
>> +               return PageAnon(pg) ? MINCORE_ANON : 0;
>> +}
>> +
> 
> How do your program handle tmpfs pages (and/or ram device pages)?
> .

Do you mean mapped files from tmpfs? Currently just any other file.
Do you see problems with this patch wrt tmpfs?

Thanks,
Pavel

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