From 9ef81ac16c421ba106ab943f99d19b8326967176 Mon Sep 17 00:00:00 2001
From: Leo Yuriev <leo@yuriev.ru>
Date: Mon, 5 Jun 2017 16:56:59 +0300
Subject: [PATCH] mdbx: add 'unlikely' to IS_OVERFLOW().

Change-Id: Ia92aac948046890ca4f9d9c3fbff0b4ac5728fab
---
 src/bits.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/bits.h b/src/bits.h
index f06685b9..3e91348e 100644
--- a/src/bits.h
+++ b/src/bits.h
@@ -915,7 +915,7 @@ static __inline size_t roundup2(size_t value, size_t granularity) {
 /* Test if a page is a branch page */
 #define IS_BRANCH(p) F_ISSET((p)->mp_flags, P_BRANCH)
 /* Test if a page is an overflow page */
-#define IS_OVERFLOW(p) F_ISSET((p)->mp_flags, P_OVERFLOW)
+#define IS_OVERFLOW(p) unlikely(F_ISSET((p)->mp_flags, P_OVERFLOW))
 /* Test if a page is a sub page */
 #define IS_SUBP(p) F_ISSET((p)->mp_flags, P_SUBP)