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From: Pavel Emelyanov <xemul@parallels.com>
To: Ying Han <yinghan@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	David Rientjes <rientjes@google.com>,
	Balbir Singh <balbir@linux.vnet.ibm.com>,
	Pavel Emelyanov <xemul@openvz.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Suleiman Souhlal <suleiman@google.com>,
	linux-mm@kvack.org
Subject: Re: memcg: slab control
Date: Fri, 27 Nov 2009 12:48:16 +0300	[thread overview]
Message-ID: <4B0FA060.4050907@parallels.com> (raw)
In-Reply-To: <604427e00911262301tac7f55avedd44263fbabccc2@mail.gmail.com>

Ying Han wrote:
> I kind of like the idea to have a kernel memory controller instead of
> kernel slab controller.
> If we only count kernel slabs, do we need another mechanism to count
> kernel allocations
> directly from get_free_pages() ?

We do. Look at what get_free_pages we mark with GFP_UBC in beancounters
and see, that if we don't count them this creates way to DoS the kernel.

> --Ying
>>
>> Thanks.
>>
>>
> 
> 

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      reply	other threads:[~2009-11-27  9:48 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-25 23:08 David Rientjes
2009-11-26  1:14 ` KAMEZAWA Hiroyuki
2009-11-26  8:50   ` Balbir Singh
2009-11-26  8:56     ` KAMEZAWA Hiroyuki
2009-11-26  9:10       ` Pavel Emelyanov
2009-11-26  9:33         ` KAMEZAWA Hiroyuki
2009-11-26  9:56           ` Pavel Emelyanov
2009-11-26 10:24             ` Suleiman Souhlal
2009-11-26 12:31               ` Pavel Emelyanov
2009-11-26 12:52                 ` Suleiman Souhlal
2009-12-01  7:40                   ` Balbir Singh
2009-11-27  7:15                 ` Ying Han
2009-11-27  9:45                   ` Pavel Emelyanov
2009-12-01  5:14                   ` KOSAKI Motohiro
2009-11-30 22:57                 ` David Rientjes
2009-12-01 10:31                   ` Pavel Emelyanov
2009-12-01 22:29                     ` David Rientjes
2009-12-01  7:36             ` Balbir Singh
2009-12-01 10:40               ` Pavel Emelyanov
2009-12-01 15:14                 ` Balbir Singh
2009-12-02 10:14                   ` Pavel Emelyanov
2009-12-02 10:19                     ` Balbir Singh
2009-12-02 10:51                       ` Pavel Emelyanov
2009-11-30 22:55         ` David Rientjes
2009-12-01 10:39           ` Pavel Emelyanov
2009-11-26 10:13     ` Suleiman Souhlal
2009-11-30  9:17       ` Balbir Singh
2009-11-30 22:45   ` David Rientjes
2009-11-26  1:17 ` KAMEZAWA Hiroyuki
2009-11-26 10:01   ` Suleiman Souhlal
2009-11-26  2:35 ` KOSAKI Motohiro
2009-11-27  7:01   ` Ying Han
2009-11-27  9:48     ` Pavel Emelyanov [this message]

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