linux-kernel - Re: No more bits in vm_area_struct's vm

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Message-ID: <4AC04800.70708@crca.org.au>
Date:	Mon, 28 Sep 2009 15:22:08 +1000
From:	Nigel Cunningham <ncunningham@...a.org.au>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	Wu Fengguang <fengguang.wu@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: No more bits in vm_area_struct's vm_flags.

Hi.

KAMEZAWA Hiroyuki wrote:
> Seems good to me.
> 
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> But
>> +	if (vma->vm_hints)
>> +		return 0;
>>  	return 1;
> 
> Maybe adding a comment (or more detailed patch description) is necessary.

Thinking about this some more, I think we should also be looking at whether the new hints are non zero. Perhaps I should just add the new value to the
function parameters and be done with it.

Nigel

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