Home » Mailing list archives » linux-kernel » 2008 » March » 28

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

!MAILaRCHIVE_VOTE_RePLACE
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
[view in full thread]
From: Paul Menage <menage@...>
To: <balbir@...>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...>, 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 - 7:04 am

On Fri, Mar 28, 2008 at 3:52 AM, Balbir Singh <balbir@linux.vnet.ibm.com> wrote:

If there are any tasks in the cgroup then the cgroup can't be deleted,
and hence the mem_cgroup is safe.

css_get()/css_put() is only needed when you have a reference from a
non-task object that needs to keep the mem_cgroup alive, which is no
longer the case for mm_struct once we have mm->owner.

Paul
--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
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)