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List:       freebsd-hackers
Subject:    Re: vm_object ref_count question
From:       Alan Cox <alan.l.cox () gmail ! com>
Date:       2010-10-28 17:35:18
Message-ID: AANLkTi=uSTP_+fc97ts1P0NiZHqcDvzSO6+iaxev3zxa () mail ! gmail ! com
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On Thu, Oct 28, 2010 at 2:48 AM, Eknath Venkataramani <eknath.iyer@gmail.com
> wrote:

> ref_count is defined inside struct vm_object.
> and it is incremented everytime the object is referenced
> How is the page reference logged then? rather in which variable?
>
>
There is no per-page reference.  There is, however, a
garbage-collection-like process performed by vm_object_collapse().

Regards,
Alan
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