Oleg Nesterov [oleg@tv-sign.ru] wrote:
| On 12/05, Eric W. Biederman wrote:
| > 
| > +pid_t pid_vnr(struct pid *pid)
| > +{
| > +	return pid_nr_ns(pid, current->nsproxy->pid_ns);
| > +}

Hmm. current->nsproxy be NULL during process exit ?
So this safe as long as pid_vnr() is not called after a
process exits its namespaces. Probably no such callers atm. 

| 
| Excellent!!!
| 
| This allows us to do many cleanups. I am sending the trivial patch just
| as example.
| 
| Oleg.
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