Re: [PATCH repost] sched: export sched_set/getaffinity to modules

From: Michael S. Tsirkin
Date: Tue Jul 27 2010 - 01:02:15 EST


On Mon, Jul 26, 2010 at 08:08:34PM +0200, Oleg Nesterov wrote:
> On 07/26, Sridhar Samudrala wrote:
> >
> > I have been testing out a similar patch that uses kernel_thread() without CLONE_FILES
> > flag rather than create_kthread() and then closing the files.
>
> !CLONE_FILES can't help. copy_files() does dup_fd() in this case.
> The child still inherits the files.
>
> > Either version should be fine.
>
> I think neither version is fine ;)
>
> exit_files() is not enough too. How about the signals, reparenting?
>
>
> I already forgot all details, probably I missed somethig. But it
> seems to me that it is better to just export get/set affinity and
> forget about all complications.
>
> Oleg.


Peter, could you please indicate whether you think this is the way to
go, too?

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MST
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