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SubjectRe: [Q] why switch_exec_pids() changes thread group leader pid?
On Mon, Sep 20, 2004 at 03:29:47PM +0400, Kirill Korotaev wrote:
> I've been looking through switch_exec_pids() function and found that it
> changes thread group leader PID/TGID. Is it really a good idea to change
> pid of the process during it's lifetime? I could understand if it was
> happenning in the context of that process, but pid changes everytime a
> thread calls do_execve().
> As far as I can see, leader doesn't have to do any of detach_pid()'s.
> Instead thread should change it's PID/TGID.

It's only done when a thread that is not a thread group leader
execve()'s. This is actually pretty rare and confined to threaded
applications, so it should be almost never called.


-- wli
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