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
next prev 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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