+const struct hash_ops uint64_hash_ops = {
+ .hash = uint64_hash_func,
+ .compare = uint64_compare_func
+};
+
+#if SIZEOF_DEV_T != 8
+unsigned long devt_hash_func(const void *p, const uint8_t hash_key[HASH_KEY_SIZE]) {
+ uint64_t u;
+ siphash24((uint8_t*) &u, p, sizeof(dev_t), hash_key);
+ return (unsigned long) u;
+}
+
+int devt_compare_func(const void *_a, const void *_b) {
+ dev_t a, b;
+ a = *(const dev_t*) _a;
+ b = *(const dev_t*) _b;
+ return a < b ? -1 : (a > b ? 1 : 0);
+}
+
+const struct hash_ops devt_hash_ops = {
+ .hash = devt_hash_func,
+ .compare = devt_compare_func
+};
+#endif
+