Re: [path][rfc] add PR_DETACH prctl command [3/3]

[Alan Cox]

On Tue, 19 Apr 2011 18:54:34 +0400
Stas Sergeev <stsp@xxxxxxxx> wrote:

> The attached patch implements the PR_DETACH prctl
> command. It detaches the entire process group from
> its parent, allowing the parent to still read the detach
> code with normal wait(). If the process then exits, the
> notification of the new parent is delayed till the old parent
> does either wait() to read the detach code, or exits.

What is the use case for this and why won't existing process group
interfaces do the job ?
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