Re: [PATCH UPDATED AGAIN 03/10] threadgroup: extend threadgroup_lock() to cover exit and exec

Hello,

On Sat, Dec 10, 2011 at 12:42:53AM +0100, Frederic Weisbecker wrote:

quoted

Okay, narrowed exit path protection down to setting of PF_EXITING
itself.  ->exit() on dangling tasks is a bit weird but I don't think
it's too bad.  Frederic, are you okay with this version?

Yeah that new scheme that only protects PF_EXITING may look a bit
strange. But I think we are fine. With rcu list traversal, it should
be safe even if a group member is concurrently dropped from the list (in that
case all we check if its PF_EXITING then we give up). And we may
have a concurrent ->exit() but that should be fine too.

Thanks!

Acked-by: Frederic Weisbecker <redacted>

Awesome, adding Acked-by, putting it on top of pm-freezer and pushing
it out to linux-next.

Thank you.

-- 
tejun