Re: [PATCH v2 3/3] prlimit: do not grab the tasklist_lock

[Barret Rhoden]

On 1/5/22 17:05, Eric W. Biederman wrote:
> I think the simple solution is just:
> 	update_rlimit_cpu(tsk->group_leader)
>
> As the group leader is guaranteed to be the last thread of the thread
> group to be processed in release_task, and thus the last thread with a
> sighand.  Nothing needs to be done if it does not have a sighand.

Ah, good to know.  I didn't know the group_leader stuck around as a 
zombie.  That makes life easier.  I'll make the change and repost the 
patches.

Thanks,

Barret