linux-kernel - Re: [PATCH] x86, mm: add generic kernel/ident mapping helper

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Message-ID: <CAE9FiQWekAOMedzr8Pj3d2O1g3KrN_Fd4F_D4SGz=gOTBZF8sA@mail.gmail.com>
Date:	Thu, 27 Dec 2012 16:34:03 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Borislav Petkov <bp@...en8.de>, Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86, mm: add generic kernel/ident mapping helper

On Thu, Dec 27, 2012 at 10:51 AM, Borislav Petkov <bp@...en8.de> wrote:
>> +struct mapping_info {
>> +     void *(*alloc)(void *);
>
>                 alloc_page

alloc_page make me feel that it will return struct page *.

>
>> +     void *data;
>> +     unsigned long flag;
>
>                 page_flags;

will change to pmd_flags

>
>> +     bool kernel;
>
>         kernel_space?

that is used to tell: if it is kernel mapping or ident mapping.

will change to is_kernel_mapping or kernel_mapping instead

>
> In general, all those members could use more meaningful names and some
> commenting explaining what they are, instead of people having to deduce
> what they mean from their usage in the code.
>
> Also, struct name 'mapping_info' is too generic. Maybe
> ident_mapping_info?

do you like to name it with kernel_ident_mapping_info ?

looks too long.
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