s4-ldb: fast path for equal pointers

We compare identical ldb_val values surprisingly often

diff --git a/source4/lib/ldb/common/ldb_msg.c b/source4/lib/ldb/common/ldb_msg.c
index a8ea52b0b17f4c74f9f2cdca3d0e10b77fd2f795..a040043f87a6383ea59b74a1caa0ee23d22d4a2b 100644 (file)
--- a/source4/lib/ldb/common/ldb_msg.c
+++ b/source4/lib/ldb/common/ldb_msg.c
@@ -63,7 +63,7 @@ struct ldb_message_element *ldb_msg_find_element(const struct ldb_message *msg,
 int ldb_val_equal_exact(const struct ldb_val *v1, const struct ldb_val *v2)
 {
        if (v1->length != v2->length) return 0;
-
+       if (v1->data == v2->data) return 1;
        if (v1->length == 0) return 1;
 
        if (memcmp(v1->data, v2->data, v1->length) == 0) {