On Thu 31-10-13 12:28:15, Johannes Weiner wrote: > On Thu, Oct 31, 2013 at 04:36:24PM +0100, Michal Hocko wrote: > > On Thu 31-10-13 10:37:58, Johannes Weiner wrote: > > > On Thu, Oct 31, 2013 at 09:50:17AM +0100, Michal Hocko wrote: > > > > On Wed 30-10-13 15:12:48, Andrew Morton wrote: > > [...] > > > > > From: Johannes Weiner <hannes@xxxxxxxxxxx> > > > > > Subject: mm: memcg: lockdep annotation for memcg OOM lock > > > > > > > > > > The memcg OOM lock is a mutex-type lock that is open-coded due to memcg's > > > > > special needs. Add annotations for lockdep coverage. > > > > > > > > I am not sure what this gives us to be honest. AA and AB-BA deadlocks > > > > are impossible due to nature of the lock (it is trylock so we never > > > > block on it). > > > > > > It's not an actual trylock, because we loop around it. If it fails, > > > we wait for the unlock, restart the fault, and try again. That's a > > > LOCK operation. > > > > OK, I have to revisit the shole series. Do you plan to post it anytime > > soon? Or where can I find the latest version? > > It's all upstream (except for these fixups). So mmotm would be the > best reference I guess. OK, it will still take me a bit to get in sync... -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>