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

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Message-ID: <20070406180552.GH32549@infradead.org>
Date:	Fri, 6 Apr 2007 19:05:52 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Chris Snook <csnook@...hat.com>, Robin Holt <holt@....com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Jack Steiner <steiner@...ricas.sgi.com>
Subject: Re: init's children list is long and slows reaping children.

On Thu, Apr 05, 2007 at 06:29:16PM -0700, Linus Torvalds wrote:
> > The support angel on my shoulder says we should just put all the kernel
> > threads under a kthread subtree to shorten init's child list and minimize
> > impact.
> 
> A number are already there, of course, since they use the kthread 
> infrastructure to get there. 

As all kernel thread (1) should be converted to kthread anyway for
proper containers support and general "let's get rid of a crappy API'
cleanups I think that's enough.  It would be nice to have SGI helping
to convert more drivers over to the proper API as conversions have stalled
a little bit.


(1) There's a few very core kernel threads that need to stick to the
    low-level API, but they're too few to make any differences.

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