linux-kernel - Re: init's children list is long and slows reaping children.

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Message-ID: <20070406194756.GB96@tv-sign.ru>
Date:	Fri, 6 Apr 2007 23:47:56 +0400
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Robin Holt <holt@....com>, Chris Snook <csnook@...hat.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: init's children list is long and slows reaping children.

On 04/06, Oleg Nesterov wrote:
>
> --- t/kernel/exit.c~	2007-04-06 23:31:31.000000000 +0400
> +++ t/kernel/exit.c	2007-04-06 23:31:57.000000000 +0400
> @@ -275,10 +275,7 @@ static void reparent_to_init(void)
>  	remove_parent(current);
>  	current->parent = child_reaper(current);
>  	current->real_parent = child_reaper(current);

Just noticed. Eric, is it ok we are using child_reaper() here?
This is for kernel threads only, shouldn't we always use
init_pid_ns.child_reaper ? (yes, it is the same currently).

Oleg.

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