ns_get_path_helper_t  106 fs/nsfs.c      void *ns_get_path_cb(struct path *path, ns_get_path_helper_t *ns_get_cb,
ns_get_path_helper_t   82 include/linux/proc_ns.h extern void *ns_get_path_cb(struct path *path, ns_get_path_helper_t ns_get_cb,