linux-kernel - Re: [RFC 0/5] Memory controller soft limit introduction (v3)

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Date:	Mon, 30 Jun 2008 09:30:50 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	YAMAMOTO Takashi <yamamoto@...inux.co.jp>,
	Paul Menage <menage@...gle.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [RFC 0/5] Memory controller soft limit introduction (v3)

KAMEZAWA Hiroyuki wrote:
> Hmm, that is the case where "share" works well. Why soft-limit ?
> i/o conroller doesn't support share ? (I don' know sorry.)
> 

Share is a proportional allocation of a resource. Typically that resource is
soft-limits, but not necessarily. If we re-use resource counters, my expectation
is that

A share implementation would under-neath use soft-limits.

> yes. what I want to say is you should take care of this.
> 

Yes, it will

> Anyway, I think you should revisit the whole memory reclaim and fixes small bugs?
> which doesn't meet soft-limit.
> 

I'll revisit the full thing, I am revisiting parts of it as I write the soft
limit feature.

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