Re: [PATCH 07/10] um: Should hold tasklist_lock while traversing processes

Anton Vorontsov
2012-03-24T16:44:41Z

On Sat, Mar 24, 2012 at 01:48:23PM +0100, Peter Zijlstra wrote:
> On Sat, 2012-03-24 at 14:30 +0400, Anton Vorontsov wrote:
> > Traversing the tasks requires holding tasklist_lock, otherwise it
> > is unsafe.
>
> No it doesn't, it either requires tasklist_lock or rcu_read_lock().

Well, currently the code does neither. :-)

--
Anton Vorontsov
Email: cbouatmailru@gmail.com