On Mon, Nov 21, 2011 at 02:03:26PM -0800, Tejun Heo wrote: > On Mon, Nov 14, 2011 at 02:54:08PM +0100, Frederic Weisbecker wrote: > > > Also note this is currently protected by the tasklist readlock. Cred guard mutex is > > > certainly better, I just don't remember if you remove the tasklist lock in a > > > further patch. > > > > Ah recalling what Ben Blum said, we also need the leader to stay stable because it > > is excpected to be passed in ->can_attach(), ->attach(), ->cancel_attach(), ... > > Although that's going to change after your patches that pass a flex array. > > Not really without locking out exec. The thing is whoever is exec'ing > will be the leader and we can't guarantee that the first in the flex > array is always the leader. One method may see it as the leader, the > next one might not. Exactly! _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/linux-pm
