On Tue, Jun 25, 2013 at 10:02:38AM +0800, Li Zefan wrote:
> > @@ -5046,8 +5049,8 @@ static const struct file_operations proc
> > void cgroup_fork(struct task_struct *child)
> > {
> > task_lock(current);
> > + get_css_set(task_css_set(current));
> > child->cgroups = current->cgroups;
>
> While we use RCU_INIT_POINTER() in cgroup_exit(), we don't need to use it here?
Yeap, because both are RCU pointers. There's no cross (sparse)
address space assignment going on.
Thanks.
--
tejun
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