(2012/06/18 19:28), Glauber Costa wrote: > This patch creates a mechanism that skip memcg allocations during > certain pieces of our core code. It basically works in the same way > as preempt_disable()/preempt_enable(): By marking a region under > which all allocations will be accounted to the root memcg. > > We need this to prevent races in early cache creation, when we > allocate data using caches that are not necessarily created already. > > Signed-off-by: Glauber Costa<glommer@xxxxxxxxxxxxx> > CC: Christoph Lameter<cl@xxxxxxxxx> > CC: Pekka Enberg<penberg@xxxxxxxxxxxxxx> > CC: Michal Hocko<mhocko@xxxxxxx> > CC: Kamezawa Hiroyuki<kamezawa.hiroyu@xxxxxxxxxxxxxx> > CC: Johannes Weiner<hannes@xxxxxxxxxxx> > CC: Suleiman Souhlal<suleiman@xxxxxxxxxx> I'm ok with this approach. Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> -- 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>