linux-kernel - Re: [PATCH -mm 06/12] split LRU lists into anon & file sets

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Date:	Sun, 1 Jun 2008 21:05:12 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lee Schermerhorn <lee.schermerhorn@...com>,
	Kosaki Motohiro <kosaki.motohiro@...fujitsu.com>
Subject: Re: [PATCH -mm 06/12] split LRU lists into anon & file sets

* Rik van Riel <riel@...hat.com> [2008-05-29 16:22:52]:

> From: Rik van Riel <riel@...hat.com>
> 
> Split the LRU lists in two, one set for pages that are backed by
> real file systems ("file") and one for pages that are backed by
> memory and swap ("anon").  The latter includes tmpfs.
> 
> Eventually mlocked pages will be taken off the LRUs alltogether.
> A patch for that already exists and just needs to be integrated
> into this series.
> 
> This patch mostly has the infrastructure and a basic policy to
> balance how much we scan the anon lists and how much we scan
> the file lists. The big policy changes are in separate patches.
> 
> Signed-off-by: Rik van Riel <riel@...hat.com>
> Signed-off-by: Lee Schermerhorn <Lee.Schermerhorn@...com>
>

Hi, Rik,

My problems with OOM continue, despite the changes incorporated into
memcontrol.c. While I am investigating the problem, the code below
seemed incorrect.

 
> +static inline void
> +del_page_from_active_file_list(struct zone *zone, struct page *page)
> +{
> +	del_page_from_lru_list(zone, page, LRU_INACTIVE_FILE);
>  }

Shouldn't this be del_page_from_lru_list(zone, page, LRU_ACTIVE_FILE)?

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
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