Re: [-mm] Add an owner to the mm_struct (v8)

[KAMEZAWA Hiroyuki]

On Fri, 04 Apr 2008 13:35:44 +0530
Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> 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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