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Re: [RFC][PATCH] Remove cgroup member from struct page (v3)

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From: Hirokazu Takahashi <taka@...>
To: <kamezawa.hiroyu@...>
Cc: <akpm@...>, <balbir@...>, <dave@...>, <nickpiggin@...>, <hugh@...>, <menage@...>, <xemul@...>, <linux-kernel@...>, <linux-mm@...>
Subject: Re: [RFC][PATCH] Remove cgroup member from struct page (v3)
Date: Thursday, September 18, 2008 - 2:13 am

Hello,


> > But I think each memory model type should have its own way of managing


Yes, that is true, it is really easy.


> I'll ignore DISCONTIGMEM and SPARSEMEM (they will use my 'hash')


What part of this do you think is the problem to implement it in the

straight way for this model?

I think it won't be difficult to implement it since each pgdat can have

its page_cgroup array, which can care about holes in the node as well as

doing it for its struct page array.


> SPARSEMEM_VMEMMAP support will took some amount of time. It will need


Yes, each of ia64, powerpc and x86_64 use this memory model.


We should also care about the regular SPARSEMEM case as you mentioned.


> Thanks,


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Messages in current thread:
[RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Sun Aug 31, 1:47 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, Pavel Emelyanov, (Mon Sep 1, 5:03 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Mon Sep 1, 5:17 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Peter Zijlstra, (Mon Sep 1, 9:19 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 2, 3:35 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Pavel Emelyanov, (Mon Sep 1, 5:43 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Sun Aug 31, 10:39 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Sun Aug 31, 11:42 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Sun Aug 31, 8:01 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, Nick Piggin, (Mon Sep 1, 2:56 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Mon Sep 1, 3:17 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Mon Sep 1, 3:19 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Nick Piggin, (Mon Sep 1, 3:43 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 2, 5:24 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 2, 6:02 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 2, 5:58 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 2, 6:07 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 2, 6:12 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 2, 6:57 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 2, 8:37 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 2, 11:33 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Mon Sep 8, 11:28 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Mon Sep 8, 11:57 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 9, 12:18 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 9, 3:37 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 9, 12:55 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Nick Piggin, (Mon Sep 8, 11:58 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 9, 12:53 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Nick Piggin, (Tue Sep 9, 1:00 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Tue Sep 9, 1:12 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 9, 8:24 am)
Re: Re: [RFC][PATCH] Remove cgroup member from struct page, , (Tue Sep 9, 8:30 am)
[Approach #2] [RFC][PATCH] Remove cgroup member from struct ..., Balbir Singh, (Tue Sep 9, 9:20 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Dave Hansen, (Wed Sep 10, 6:21 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Nick Piggin, (Wed Sep 10, 6:38 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Balbir Singh, (Wed Sep 10, 6:36 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Dave Hansen, (Wed Sep 10, 6:56 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., KAMEZAWA Hiroyuki, (Wed Sep 10, 9:35 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Balbir Singh, (Wed Sep 10, 9:47 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., KAMEZAWA Hiroyuki, (Wed Sep 10, 9:56 pm)
[RFC][PATCH] Remove cgroup member from struct page (v3), Balbir Singh, (Wed Sep 17, 7:28 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), Andrew Morton, (Wed Sep 17, 9:40 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), KAMEZAWA Hiroyuki, (Thu Sep 18, 12:43 am)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), Balbir Singh, (Thu Sep 18, 12:58 am)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), KAMEZAWA Hiroyuki, (Thu Sep 18, 7:01 am)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), Balbir Singh, (Thu Sep 18, 7:56 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), KAMEZAWA Hiroyuki, (Thu Sep 18, 1:15 am)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), Hirokazu Takahashi, (Thu Sep 18, 12:26 am)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), KAMEZAWA Hiroyuki, (Thu Sep 18, 12:50 am)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), Hirokazu Takahashi, (Thu Sep 18, 2:13 am)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), Balbir Singh, (Wed Sep 17, 11:57 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page (v3), KAMEZAWA Hiroyuki, (Thu Sep 18, 1:00 am)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., David Miller, (Wed Sep 10, 6:31 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., KAMEZAWA Hiroyuki, (Tue Sep 9, 9:49 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Nick Piggin, (Wed Sep 10, 4:44 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., KAMEZAWA Hiroyuki, (Wed Sep 10, 7:03 am)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Nick Piggin, (Wed Sep 10, 5:02 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., KAMEZAWA Hiroyuki, (Wed Sep 10, 7:27 am)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Balbir Singh, (Wed Sep 10, 10:34 am)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., Balbir Singh, (Tue Sep 9, 10:11 pm)
Re: [Approach #2] [RFC][PATCH] Remove cgroup member from str..., KAMEZAWA Hiroyuki, (Tue Sep 9, 10:35 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Tue Sep 9, 8:34 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Nick Piggin, (Tue Sep 9, 8:28 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Wed Sep 3, 3:31 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Sun Aug 31, 11:28 pm)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Mon Sep 1, 12:03 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Mon Sep 1, 2:09 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Mon Sep 1, 2:24 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Mon Sep 1, 2:25 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Mon Sep 1, 2:59 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, KAMEZAWA Hiroyuki, (Mon Sep 1, 1:17 am)
Re: [RFC][PATCH] Remove cgroup member from struct page, Balbir Singh, (Mon Sep 1, 2:16 am)