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

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Date:	Fri, 6 Apr 2007 19:31:23 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Oleg Nesterov <oleg@...sign.ru>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Robin Holt <holt@....com>, Chris Snook <csnook@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: init's children list is long and slows reaping children.


* Ingo Molnar <mingo@...e.hu> wrote:

> putting the freshly reaped tasks at the 'head' of the list is just a 
> fancy (and incomplete) way of splitting the list up into two lists, and 
> i'd advocate a clean split. Just like have have split the ptrace_list 
                                          ^---s/have/we
> away from the main list too.

and in this sense your suggestion will happen:

> > I'd almost prefer to just not add kernel threads to any parent 
> > process list *at*all*.

because that way kernel threads will never show up in the to-be-reaped 
list, they'll only show up in the main list that represents the tree of 
tasks.

	Ingo
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