Oleg Nesterov wrote:
> taskstats_tgid_free() is called on copy_process's error path. This is wrong.
>
> IF (clone_flags & CLONE_THREAD)
> We should not clear ->signal->taskstats, current uses it,
> it probably has a valid accumulated info.
> ELSE
> taskstats_tgid_init() set ->signal->taskstats = NULL,
> there is nothing to free.
>
> Move the callsite to __exit_signal(). We don't need any locking, entire
> thread group is exiting, nobody should have a reference to soon to be
> released ->signal.
>
> Signed-off-by: Oleg Nesterov <[email protected]>
Looks good!
Acked-by: Balbir Singh <[email protected]>
---
Balbir Singh,
Linux Technology Center,
IBM Software Labs
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