Subject: Re: zeroed page recycling
To: YAMAMOTO Takashi <>
From: Chuck Silvers <>
List: tech-kern
Date: 11/02/2003 09:02:48

this looks good in general.  a couple small issues:

 (1) could you move the DEBUG XXXyamt code to uvm_pagefree()
     (like your comment suggests)?

 (2) could you add a description of this to the uvm.9 manpage?


On Wed, Oct 29, 2003 at 12:41:46AM +0900, YAMAMOTO Takashi wrote:
> hi,
> some subsystems know the page that is about to be freed is zero-filled.
> however, there's no way to tell it to uvm page allocator.
> attached patches allow subsystems (in this case, i386 pmap) to
> do it by setting PG_ZERO flag when freeing the page.
> comments?
> YAMAMOTO Takashi