From 3c87e0271625ea74e6dac94bc3182cf35ffefb2a Mon Sep 17 00:00:00 2001
From: Leo Yuriev <leo@yuriev.ru>
Date: Sun, 26 Aug 2018 18:49:14 +0300
Subject: [PATCH] mdbx: add `unlikely` for comparison result inside
 mdbx_cursor_set().

---
 src/mdbx.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/mdbx.c b/src/mdbx.c
index 18434939..88bbcbd3 100644
--- a/src/mdbx.c
+++ b/src/mdbx.c
@@ -7154,10 +7154,9 @@ static int mdbx_cursor_set(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data,
       MDBX_GET_KEY2(leaf, nodekey);
     }
     rc = mc->mc_dbx->md_cmp(key, &nodekey);
-    if (rc == 0) {
+    if (unlikely(rc == 0)) {
       /* Probably happens rarely, but first node on the page
-       * was the one we wanted.
-       */
+       * was the one we wanted. */
       mc->mc_ki[mc->mc_top] = 0;
       if (exactp)
         *exactp = 1;