On 08/18, Roland McGrath wrote:
>
> Maybe it can use wait_task_inactive, which IIUC is being changed to address
> the same RT issue.
The group_leader can sleep before it enters exit_notify(). In that case
wait_task_inactive() returns, and we still need some polling to wait for
EXIT_ZOMBIE.
> OTOH, notify_count exists only for this. So maybe the
> better way is to clean that whole mechanism up somehow.
Yes sure. But in any case I think we should avoid polling, we need some
notification from exit_notify().
> The exit.c changes
> in your patch seem to be making it more mysterious rather than less so.
I completely agree.
Oleg.
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