On Fri, 26 Feb 2016 11:59:40 -0800 "Shi, Yang" <yang.shi@xxxxxxxxxx> wrote: > BTW, it sounds this is not the only point where kernfs_node could be > updated, __kernfs_remove should need synchronize_sched too. > Question is, can the kernfs of a cgroup be removed while the cgroup is still active? I don't see the kernfs_rename_lock being held anywhere in that remove. If it can be an issue there with this patch, then it's an issue today, because the kernfs_mutex is not held by the tracepoint. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html