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From: Balbir Singh <balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
To: YAMAMOTO Takashi <yamamoto-jCdQPDEk3idL9jVzuh4AOg@public.gmane.org>
Cc: xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org,
	a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
	ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org,
	containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
	akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
	menage-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
	dhaval-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org
Subject: Re: [-mm PATCH 4/9] Memory controller memory accounting (v4)
Date: Wed, 15 Aug 2007 15:32:30 +0530	[thread overview]
Message-ID: <46C2CF36.7020308@linux.vnet.ibm.com> (raw)
In-Reply-To: <20070815084454.09B061BF982-Pcsii4f/SVk@public.gmane.org>

YAMAMOTO Takashi wrote:
>> YAMAMOTO Takashi wrote:
>>>> +	lock_meta_page(page);
>>>> +	/*
>>>> +	 * Check if somebody else beat us to allocating the meta_page
>>>> +	 */
>>>> +	race_mp = page_get_meta_page(page);
>>>> +	if (race_mp) {
>>>> +		kfree(mp);
>>>> +		mp = race_mp;
>>>> +		atomic_inc(&mp->ref_cnt);
>>>> +		res_counter_uncharge(&mem->res, 1);
>>>> +		goto done;
>>>> +	}
>>> i think you need css_put here.
>> Thats correct. We do need css_put in this path.
>>
>> Thanks,
>> Vaidy
> 
> v5 still seems to have the problem.
> 
> YAMAMOTO Takashi
> 

Hi, 

I've got the fix in v6 now, thanks for spotting it.

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

  parent reply	other threads:[~2007-08-15 10:02 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-27 20:09 [-mm PATCH 0/9] Memory controller introduction (v4) Balbir Singh
2007-07-27 20:09 ` [-mm PATCH 1/9] Memory controller resource counters (v4) Balbir Singh
2007-07-27 20:09 ` [-mm PATCH 2/9] Memory controller containers setup (v4) Balbir Singh
2007-07-27 20:10 ` [-mm PATCH 3/9] Memory controller accounting " Balbir Singh
2007-07-27 20:10 ` [-mm PATCH 4/9] Memory controller memory accounting (v4) Balbir Singh
2007-07-31  3:38   ` YAMAMOTO Takashi
2007-07-31 12:44     ` Vaidyanathan Srinivasan
2007-08-15  8:44       ` YAMAMOTO Takashi
     [not found]         ` <20070815084454.09B061BF982-Pcsii4f/SVk@public.gmane.org>
2007-08-15 10:02           ` Balbir Singh [this message]
2007-07-27 20:10 ` [-mm PATCH 5/9] Memory controller task migration (v4) Balbir Singh
2007-07-27 20:10 ` [-mm PATCH 6/9] Memory controller add per container LRU and reclaim (v4) Balbir Singh
2007-07-30 13:37   ` Dhaval Giani
2007-07-30 13:59     ` Peter Zijlstra
2007-07-30 14:28     ` Gautham R Shenoy
2007-07-31  5:14   ` YAMAMOTO Takashi
2007-07-31 12:55     ` Vaidyanathan Srinivasan
2007-08-07 18:30       ` Vaidyanathan Srinivasan
2007-07-27 20:10 ` [-mm PATCH 7/9] Memory controller OOM handling (v4) Balbir Singh
2007-07-27 20:11 ` [-mm PATCH 8/9] Memory controller add switch to control what type of pages to limit (v4) Balbir Singh
2007-08-13  0:33   ` YAMAMOTO Takashi
     [not found]     ` <20070813003348.91E3E1BF943-Pcsii4f/SVk@public.gmane.org>
2007-08-13  5:38       ` Balbir Singh
2007-08-13  6:04         ` YAMAMOTO Takashi
2007-08-13  6:17           ` Balbir Singh
2007-07-27 20:11 ` [-mm PATCH 9/9] Memory controller make page_referenced() container aware (v4) Balbir Singh
2007-08-08  3:51 ` [-mm PATCH 0/9] Memory controller introduction (v4) KAMEZAWA Hiroyuki
2007-08-08  7:51   ` KAMEZAWA Hiroyuki
2007-08-10  4:49     ` Vaidyanathan Srinivasan

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