From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Paul Menage <menage@google.com>,
Pavel Emelianov <xemul@openvz.org>,
Hugh Dickins <hugh@veritas.com>,
Sudhir Kumar <skumar@linux.vnet.ibm.com>,
YAMAMOTO Takashi <yamamoto@valinux.co.jp>,
lizf@cn.fujitsu.com, linux-kernel@vger.kernel.org,
taka@valinux.co.jp, linux-mm@kvack.org,
David Rientjes <rientjes@google.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [-mm] Add an owner to the mm_struct (v8)
Date: Wed, 9 Apr 2008 09:42:46 +0900 [thread overview]
Message-ID: <20080409094246.f9a2a901.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <20080404080544.26313.38199.sendpatchset@localhost.localdomain>
On Fri, 04 Apr 2008 13:35:44 +0530
Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
> + /*
> + * Search through everything else. We should not get
> + * here often
> + */
> + do_each_thread(g, c) {
> + if (c->mm == mm)
> + goto assign_new_owner;
> + } while_each_thread(g, c);
> +
I'm sorry for my laziness.
Why do_each_thread() ? for_each_process() is not enough ?
(because of delay_group_leader().)
And what we have to test for the worst case is following, right ?
==
1. create a tons of threads.
2. create a process which calls vfork().
3. keep child alive and vfork() caller exits
==
Thanks,
-Kame
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prev parent reply other threads:[~2008-04-09 0:42 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-04 8:05 Balbir Singh
2008-04-04 8:12 ` Paul Menage
2008-04-04 8:28 ` Balbir Singh
2008-04-04 8:50 ` Paul Menage
2008-04-04 9:25 ` Balbir Singh
2008-04-04 19:11 ` Paul Menage
2008-04-05 14:47 ` Balbir Singh
2008-04-05 17:23 ` Paul Menage
2008-04-05 17:48 ` Balbir Singh
2008-04-05 17:57 ` Paul Menage
2008-04-05 18:59 ` Balbir Singh
2008-04-05 23:29 ` Paul Menage
2008-04-06 5:38 ` Balbir Singh
2008-04-08 6:37 ` Paul Menage
2008-04-08 6:52 ` Balbir Singh
2008-04-08 6:57 ` Paul Menage
2008-04-08 7:05 ` Balbir Singh
2008-04-08 7:29 ` Paul Menage
2008-04-10 9:09 ` Balbir Singh
2008-04-05 23:31 ` Paul Menage
2008-04-06 6:31 ` Balbir Singh
2008-04-08 6:32 ` Paul Menage
2008-04-07 22:09 ` Andrew Morton
2008-04-08 2:39 ` Balbir Singh
2008-04-08 2:55 ` Andrew Morton
2008-04-09 0:42 ` KAMEZAWA Hiroyuki [this message]
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