linux-kernel - Re: [PATCH] NOMMU: Pages allocated to a ramfs inode's pagecache may get wrongly discarded

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Message-ID: <28c262360903111911l4e14685emb0261fe649bc03fa@mail.gmail.com>
Date:	Thu, 12 Mar 2009 11:11:53 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, dhowells@...hat.com,
	torvalds@...ux-foundation.org, peterz@...radead.org,
	Enrik.Berkhan@...com, uclinux-dev@...inux.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Johannes Weiner <hannes@...xchg.org>,
	Rik van Riel <riel@...riel.com>,
	Lee Schermerhorn <lee.schermerhorn@...com>
Subject: Re: [PATCH] NOMMU: Pages allocated to a ramfs inode's pagecache may 
	get wrongly discarded

On Thu, Mar 12, 2009 at 11:00 AM, KOSAKI Motohiro
<kosaki.motohiro@...fujitsu.com> wrote:
>> Hi, Kosaki-san.
>>
>> I think ramfs pages's unevictablility should not depend on CONFIG_UNEVICTABLE_LRU.
>> It would be better to remove dependency of CONFIG_UNEVICTABLE_LRU ?
>>
>> How about this ?
>> It's just RFC. It's not tested.
>>
>> That's because we can't reclaim that pages regardless of whether there is unevictable list or not
>
> maybe, your patch work.
>
> but we can remove CONFIG_UNEVICTABLE_LRU build option itself completely
> after nommu folks confirmed CONFIG_UNEVICTABLE_LRU works well on their machine
>
> it is more cleaner IMHO.
> What do you think?
>
>

I agree your opinion, totally
Let us wait nommu folks's comments.


-- 
Kinds regards,
Minchan Kim
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