279 				  struct nscookie *nc)  in nsinfo__mountns_enter()  argument
286 	if (nc == NULL)  in nsinfo__mountns_enter()
289 	nc->oldns = -1;  in nsinfo__mountns_enter()
290 	nc->newns = -1;  in nsinfo__mountns_enter()
313 	nc->oldcwd = oldcwd;  in nsinfo__mountns_enter()
314 	nc->oldns = oldns;  in nsinfo__mountns_enter()
315 	nc->newns = newns;  in nsinfo__mountns_enter()
326 void nsinfo__mountns_exit(struct nscookie *nc)  in nsinfo__mountns_exit()  argument
328 	if (nc == NULL || nc->oldns == -1 || nc->newns == -1 || !nc->oldcwd)  in nsinfo__mountns_exit()
331 	setns(nc->oldns, CLONE_NEWNS);  in nsinfo__mountns_exit()
333 	if (nc->oldcwd) {  in nsinfo__mountns_exit()
334 		WARN_ON_ONCE(chdir(nc->oldcwd));  in nsinfo__mountns_exit()
335 		zfree(&nc->oldcwd);  in nsinfo__mountns_exit()
338 	if (nc->oldns > -1) {  in nsinfo__mountns_exit()
339 		close(nc->oldns);  in nsinfo__mountns_exit()
340 		nc->oldns = -1;  in nsinfo__mountns_exit()
343 	if (nc->newns > -1) {  in nsinfo__mountns_exit()
344 		close(nc->newns);  in nsinfo__mountns_exit()
345 		nc->newns = -1;  in nsinfo__mountns_exit()