linux-kernel - Re: [-mm PATCH 0/7] Memory controller introduction

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Message-ID: <468D00FF.6070106@linux.vnet.ibm.com>
Date:	Thu, 05 Jul 2007 07:32:31 -0700
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Pavel Emelianov <xemul@...nvz.org>
CC:	Kirill Korotaev <dev@...nvz.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Containers <containers@...ts.osdl.org>,
	Paul Menage <menage@...gle.com>
Subject: Re: [-mm PATCH 0/7] Memory controller introduction

Hi, Pavel,

Pavel Emelianov wrote:
> Balbir Singh wrote:
> 
> As far as I remember at OLS we decided to implement per-zone RLU
> lists and reuse the lru lock as well. This will remove all the 
> problems with per-container lists inconsistency.
> 

It's there in the TODO list. It is easy to implement. I can do that
in the next revision. We are re-using the LRU lock, since the
isolate_pages callback is called under the zone's LRU lock.

> Separate limits for RSS and RSS+pagecache are also a must.
> 

I remember that we discussed having one limit, but we can come up
with a configuration parameter to do it. I'll do that in the
next release.

> BTW, if you send smb. else's patches you may include a 'From: xxx'
> line into the letter to address the original author.
> 

I'll do that for the res_counters_infra patch. Although I had used
res_counter, the hooks in mm_struct earlier (http://lkml.org/lkml/2007/2/19/12).

A lot of the code for the reclaim logic and the meta_page is yours.
Please do identify patches where you would like to see your
signed-off-by and where you think the entire patch is completely
yours.

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