Re: [-mm] Add an owner to the mm_struct (v2)

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

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

Cc: <balbir@...>, Paul Menage <menage@...>, Pavel Emelianov <xemul@...>, Hugh Dickins <hugh@...>, Sudhir Kumar <skumar@...>, YAMAMOTO Takashi <yamamoto@...>, <lizf@...>, <linux-kernel@...>, <taka@...>, <linux-mm@...>, David Rientjes <rientjes@...>, Andrew Morton <akpm@...>

Subject: Re: [-mm] Add an owner to the mm_struct (v2)

Date: Friday, March 28, 2008 - 7:21 am

On Fri, 28 Mar 2008 20:15:28 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:

quoted text> Now,
> - css_get(memcgrp) is called at mm_struct initialization.
> - css_put(memcgrp) is called at mm_struct freeing.
> 
> How about
> - css_get(memcgrp) is called at task_struct initialization.
> - css_put(memcgrp) is called at task_struct freeing.
> 
> Because
> 1. we find mem_cgroup by mm->owner, after this.
> 2. generic group interface have exit() and clone() callback interface.
> 
> mem_cgroup will not be freed until rmdir(), anyway.
> 
Ignore above. As Paul pointed out, reference count from task is not necessary.

Thanks,
-Kame

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Messages in current thread:

[-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 4:23 am)

Re: [-mm] Add an owner to the mm_struct (v2), Paul Menage, (Fri Mar 28, 7:01 am)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 8:36 am)

Re: [-mm] Add an owner to the mm_struct (v2), Paul Menage, (Fri Mar 28, 10:05 am)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 10:52 am)

Re: [-mm] Add an owner to the mm_struct (v2), Paul Menage, (Fri Mar 28, 11:38 am)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 2:10 pm)

Re: [-mm] Add an owner to the mm_struct (v2), Paul Menage, (Fri Mar 28, 2:52 pm)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Sat Mar 29, 1:46 am)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 9:02 pm)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 8:54 am)

Re: [-mm] Add an owner to the mm_struct (v2), Paul Menage, (Fri Mar 28, 10:06 am)

Re: [-mm] Add an owner to the mm_struct (v2), KAMEZAWA Hiroyuki, (Fri Mar 28, 6:55 am)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 6:52 am)

Re: [-mm] Add an owner to the mm_struct (v2), KAMEZAWA Hiroyuki, (Fri Mar 28, 7:15 am)

Re: [-mm] Add an owner to the mm_struct (v2), KAMEZAWA Hiroyuki, (Fri Mar 28, 7:21 am)

Re: [-mm] Add an owner to the mm_struct (v2), Paul Menage, (Fri Mar 28, 7:04 am)

Re: [-mm] Add an owner to the mm_struct (v2), KAMEZAWA Hiroyuki, (Fri Mar 28, 6:48 am)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 6:51 am)

Re: [-mm] Add an owner to the mm_struct (v2), KAMEZAWA Hiroyuki, (Fri Mar 28, 7:06 am)

Re: [-mm] Add an owner to the mm_struct (v2), Jiri Slaby, (Fri Mar 28, 5:41 am)

Re: [-mm] Add an owner to the mm_struct (v2), Jiri Slaby, (Fri Mar 28, 5:43 am)

Re: [-mm] Add an owner to the mm_struct (v2), Balbir Singh, (Fri Mar 28, 6:11 am)


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Re: [-mm] Add an owner to the mm_struct (v2)

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