On 11/28, Peter Zijlstra wrote:
>
> So there's three useful parts to having a single parent task:
>
>  - its a task so you can change the entire task attribute set; current
>    and future.

You can't change, say, its fs->root.

OK, OK, this is almost off-topic, I am just trying to say that
(perhaps) in the longer term we might want even more than just
a dedicated kernel thread.

>  - new children will automatically get the desired attributes.

yes,

>  - all children are easily identified by virtual of being children of
>    said parent process.

Well, UMH_WAIT_PROC won't work in this case, or it will be "single-threaded"
too. OK, this is probably solvable, but nontrivial. In this case "khelper"
should act as a /sbin/init for user-mode helpers.

Oleg.

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