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

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From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...>

To: <balbir@...>

Cc: Nick Piggin <nickpiggin@...>, Andrew Morton <akpm@...>, <hugh@...>, <menage@...>, <xemul@...>, <linux-kernel@...>, <linux-mm@...>

Subject: Re: [RFC][PATCH] Remove cgroup member from struct page

Date: Tuesday, September 9, 2008 - 3:37 am

On Mon, 08 Sep 2008 21:18:37 -0700
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

quoted text> KAMEZAWA Hiroyuki wrote:
> > On Mon, 8 Sep 2008 20:58:10 +0530
> > Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
> >> Sorry for the delay in sending out the new patch, I am traveling and
> >> thus a little less responsive. Here is the update patch
> >>
> >>
> > Hmm.. I've considered this approach for a while and my answer is that
> > this is not what you really want.
> > 
> > Because you just moves the placement of pointer from memmap to
> > radix_tree both in GFP_KERNEL, total kernel memory usage is not changed.
> 
> Agreed, but we do reduce the sizeof(struct page) without adding on to
> page_cgroup's size. So why don't we want this?
> 
Because it's depends on CONFIG.

But ok, I'll recall my patches from grave. Maybe it can be a hint for you.

Thanks,
-Kame

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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)

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