Re: [PATCH 2/2] fix kill_proc_info() vs fork() theoretical race

From: Paul E. McKenney
Date: Fri Feb 17 2006 - 21:04:23 EST


On Fri, Feb 17, 2006 at 12:20:08AM +0300, Oleg Nesterov wrote:
> "Paul E. McKenney" wrote:
> >
> > The other thing to think through is tkill on a thread/process while it
> > is being created. I believe that this is OK, since thread-specific
> > kill must target a specific thread, so does not do the traversal.
>
> Also, tkill was not converted to use rcu_read_lock yet, it still
> takes tasklist_lock, so I think it is safe.

I suspect that tkill will eventually need to avoid tasklist_lock... ;-)

Thanx, Paul
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