65 	char oldns[PATH_MAX];  in nsinfo__init()  local
75 	if (snprintf(oldns, PATH_MAX, "/proc/self/ns/mnt") >= PATH_MAX)  in nsinfo__init()
81 	if (stat(oldns, &old_stat) < 0)  in nsinfo__init()
205 	int oldns = -1;  in nsinfo__mountns_enter()  local
212 	nc->oldns = -1;  in nsinfo__mountns_enter()
225 	oldns = open(curpath, O_RDONLY);  in nsinfo__mountns_enter()
226 	if (oldns < 0)  in nsinfo__mountns_enter()
237 	nc->oldns = oldns;  in nsinfo__mountns_enter()
243 	if (oldns > -1)  in nsinfo__mountns_enter()
244 		close(oldns);  in nsinfo__mountns_enter()
251 	if (nc == NULL || nc->oldns == -1 || nc->newns == -1 || !nc->oldcwd)  in nsinfo__mountns_exit()
254 	setns(nc->oldns, CLONE_NEWNS);  in nsinfo__mountns_exit()
261 	if (nc->oldns > -1) {  in nsinfo__mountns_exit()
262 		close(nc->oldns);  in nsinfo__mountns_exit()
263 		nc->oldns = -1;  in nsinfo__mountns_exit()