Re: UVM typedef struct

To: Jason Thorpe <thorpej%shagadelic.org@localhost>
Subject: Re: UVM typedef struct
From: David Holland <dholland-tech%netbsd.org@localhost>
Date: Tue, 11 Aug 2009 06:37:57 +0000

On Mon, Aug 10, 2009 at 05:43:58PM -0700, Jason Thorpe wrote:
>> I think that there're many benefits by making struct vm_page opaque.
>> Its content is touched from ~everywhere including filesystem layers,
>> which violates abstraction.  I'd propose to make vm_page_t opaque and
>> make users to always use accessor routines.
>
> I would like to see NetBSD do that with ~all of its data structures.

Making data structures opaque is a completely different issue from
creating an unnecessary and misleading layer of magic aliased names
for them.

-- 
David A. Holland
dholland%netbsd.org@localhost

References:
- UVM typedef struct
  - From: Mindaugas Rasiukevicius
- Re: UVM typedef struct
  - From: Masao Uebayashi
- Re: UVM typedef struct
  - From: Jason Thorpe

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