(2012/05/12 5:11), Glauber Costa wrote: > Right now we free struct memcg with kfree right after a > rcu grace period, but defer it if we need to use vfree() to get > rid of that memory area. We do that by need, because we need vfree > to be called in a process context. > > This patch unifies this behavior, by ensuring that even kfree will > happen in a separate thread. The goal is to have a stable place to > call the upcoming jump label destruction function outside the realm > of the complicated and quite far-reaching cgroup lock (that can't be > held when calling neither the cpu_hotplug.lock nor the jump_label_mutex) > > Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx> > CC: Tejun Heo <tj@xxxxxxxxxx> > CC: Li Zefan <lizefan@xxxxxxxxxx> > CC: Kamezawa Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > CC: Johannes Weiner <hannes@xxxxxxxxxxx> > CC: Michal Hocko <mhocko@xxxxxxx> I think we'll need to revisit this, again. for now, Acked-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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>