From c9c0549b4fc5998562f897142727e18a5657410d Mon Sep 17 00:00:00 2001
From: Leo Yuriev <leo@yuriev.ru>
Date: Wed, 13 Jan 2016 18:02:47 +0300
Subject: [PATCH] mdbx: fix madvise() flags.

Change-Id: If0ed3cd972fbc0caea486656ae05526aa2022574
---
 mdb.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/mdb.c b/mdb.c
index e2214db9..62a2a8fb 100644
--- a/mdb.c
+++ b/mdb.c
@@ -4731,13 +4731,23 @@ mdb_env_setup_locks(MDB_env *env, char *lpath, int mode, int *excl)
 		return errno;
 	env->me_txns = m;
 
-	if (madvise(env->me_txns, rsize, MADV_DONTFORK | MADV_WILLNEED))
-		return errno;
+#ifdef MADV_NOHUGEPAGE
+	(void) madvise(env->me_txns, rsize, MADV_NOHUGEPAGE);
+#endif
 
 #ifdef MADV_DODUMP
-	madvise(env->me_txns, rsize, MADV_DODUMP);
+	(void) madvise(env->me_txns, rsize, MADV_DODUMP);
 #endif
 
+	if (madvise(env->me_txns, rsize, MADV_DONTFORK) < 0)
+		return errno;
+
+	if (madvise(env->me_txns, rsize, MADV_WILLNEED) < 0)
+		return errno;
+
+	if (madvise(env->me_txns, rsize, MADV_RANDOM) < 0)
+		return errno;
+
 	if (*excl > 0) {
 		pthread_mutexattr_t mattr;