Messages in this thread | | | Date | Mon, 20 Sep 2004 04:46:16 -0700 | From | William Lee Irwin III <> | Subject | Re: [Q] why switch_exec_pids() changes thread group leader pid? |
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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.
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