linux-kernel - Re: [PATCH] mmtom: Prevent shrinking of active anon lru list in case of no swap space V2

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Message-Id: <20090514202538.9B81.A69D9226@jp.fujitsu.com>
Date:	Thu, 14 May 2009 20:25:56 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Minchan Kim <minchan.kim@...il.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH] mmtom: Prevent shrinking of active anon lru list in case of no swap space V2

> 
> Changelog since V2
>  o Add new function - can_reclaim_anon : it tests anon_list can be reclaim 
> 
> Changelog since V1 
>  o Use nr_swap_pages <= 0 in shrink_active_list to prevent scanning  of active anon list.
> 
> Now shrink_active_list is called several places.
> But if we don't have a swap space, we can't reclaim anon pages.
> So, we don't need deactivating anon pages in anon lru list.
> 
> Signed-off-by: Minchan Kim <minchan.kim@...il.com>
> Cc: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Cc: Johannes Weiner <hannes@...xchg.org>
> Cc: Rik van Riel <riel@...hat.com>	

looks good to me. thanks :)



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