linux-kernel - Re: [PATCH -V6 07/14] memcg: Add HugeTLB extension

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Message-ID: <alpine.DEB.2.00.1206091853580.7832@chino.kir.corp.google.com>
Date:	Sat, 9 Jun 2012 18:55:30 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	mgorman@...e.de,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	dhillf@...il.com, aarcange@...hat.com, hannes@...xchg.org,
	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
	Michal Hocko <mhocko@...e.cz>, Ying Han <yinghan@...gle.com>
Subject: Re: [PATCH -V6 07/14] memcg: Add HugeTLB extension

On Sat, 9 Jun 2012, Aneesh Kumar K.V wrote:

> David Rientjes didn't like HugetTLB limit to be a memcg extension and
> wanted this to be a separate controller. I posted a v7 version that did
> HugeTLB limit as a separate controller and used page cgroup to track
> HugeTLB cgroup. Kamezawa Hiroyuki didn't like the usage of page_cgroup
> in HugeTLB controller( http://mid.gmane.org/4FCD648E.90709@jp.fujitsu.com )
> 

Yes, and thank you very much for working on v8 to remove the dependency on 
page_cgroup and to seperate this out.  I think it will benefit users who 
don't want to enable all of memcg but still want to account and restrict 
hugetlb page usage, and I think the code seperation is much cleaner 
internally.

I'll review that patchset and suggest that the old hugetlb extension in 
-mm be dropped in the interim.
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