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

[ebiederm@xmission.com (Eric W. Biederman)]

Christoph Hellwig <hch@infradead.org> writes:

> 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.

Yes.  I had to step back and remind myself why I care as daemonize is
currently doing an effective job of removing the namespace information.

However there is nothing daemonize can do about the pid of the task
because it is returned by kernel_thread and used by the callers 
(to at the very least find the task_struct).

So not finishing that conversion is certainly one of the last blockers
for implementing the pid namespace.

Eric
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