linux-kernel - Re: [PATCH 1/2] x86: rename PTE_MASK to PTE_PFN

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Date:	Tue, 22 Jul 2008 07:52:43 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Johannes Weiner <hannes@...urebad.de>
CC:	Rusty Russell <rusty@...tcorp.com.au>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] x86: rename PTE_MASK to PTE_PFN_MASK

Johannes Weiner wrote:
> PTE_PFN_MASK is not symmetric to PAGE_MASK.

No, it isn't.  Is there anything about the name that suggests that it 
should be?  PTE_PFN_MASK is for operating on pteval_t-typed values 
extracted from ptes; PAGE_MASK is for operating on addresses.

>   How about PTE_PROT_MASK?
>   

That's the opposite sense; the next patch defines it as PTE_FLAGS_MASK.

    J
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