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xen-devel
[Xen-devel] Re: a room for blkio-cgroup in struct page_cgroup
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To: |
KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: a room for blkio-cgroup in struct page_cgroup |
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From: |
Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> |
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Date: |
Thu, 3 Sep 2009 01:32:24 +0530 |
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Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, containers@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, dm-devel@xxxxxxxxxx, Ryo Tsuruta <ryov@xxxxxxxxxxxxx> |
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Wed, 02 Sep 2009 13:02:46 -0700 |
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2009/9/2 KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>:
> Ryo Tsuruta wrote:
>> Hi Kamezawa-san,
>>
>> As you wrote before (http://lkml.org/lkml/2009/7/22/65)
>>> To be honest, what I expected in these days for people of blockio
>>> cgroup is like following for getting room for themselves.
>> <<snip>>
>>> --- mmotm-2.6.31-Jul16.orig/include/linux/page_cgroup.h
>>> +++ mmotm-2.6.31-Jul16/include/linux/page_cgroup.h
>>> @@ -13,7 +13,7 @@
>>> struct page_cgroup {
>>> unsigned long flags;
>>> struct mem_cgroup *mem_cgroup;
>>> - struct page *page;
>>> + /* block io tracking will use extra unsigned long bytes */
>>> struct list_head lru; /* per cgroup LRU list */
>>> };
>>
>> Have you already added a room for blkio_cgroup in struct page_cgroup?
> No.
>
The diff above is unclear, are you removing struct page from page_cgroup?
Balbir Singh
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