linux-kernel - Re: Re: [RFC][PATCH 11/9] lazy lru free vector for memcg

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Date:	Tue, 16 Sep 2008 22:02:24 +0900 (JST)
From:	kamezawa.hiroyu@...fujitsu.com
To:	Pavel Emelyanov <xemul@...nvz.org>
Cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	balbir@...ux.vnet.ibm.com, hugh@...itas.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, menage@...gle.com,
	Dave Hansen <haveblue@...ibm.com>, nickpiggin@...oo.com.au
Subject: Re: Re: [RFC][PATCH 11/9] lazy lru free vector for memcg

----- Original Message -----

>[snip]
>
>> @@ -938,6 +1047,7 @@ static int mem_cgroup_force_empty(struct
>>  	 * So, we have to do loop here until all lists are empty.
>>  	 */
>>  	while (mem->res.usage > 0) {
>> +		drain_page_cgroup_all();
>
>Shouldn't we wait here till the drain process completes?
>
I thought schedule_on_each_cpu() watis for completion of the work.
I'll check it, again.

Thank you for review.

Regards,
-Kame


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