From 1ff4fffe893346160e5136a3e4a1999e8927b5ec Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Wed, 14 Nov 2012 19:25:09 +0100
Subject: erts: Add carrier pointer to header of free block

---
 erts/emulator/sys/common/erl_mseg.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'erts/emulator/sys')

diff --git a/erts/emulator/sys/common/erl_mseg.h b/erts/emulator/sys/common/erl_mseg.h
index 91e335b225..f260c6506f 100644
--- a/erts/emulator/sys/common/erl_mseg.h
+++ b/erts/emulator/sys/common/erl_mseg.h
@@ -33,10 +33,14 @@
 #if HAVE_MMAP
 #  define HAVE_ERTS_MSEG 1
 #  define HAVE_SUPER_ALIGNED_MB_CARRIERS 1
-#  define MSEG_ALIGN_BITS       (17)	/*SVERK Configure me! */
 #else
 #  define HAVE_ERTS_MSEG 0
 #  define HAVE_SUPER_ALIGNED_MB_CARRIERS 0
+#endif
+
+#if HAVE_SUPER_ALIGNED_MB_CARRIERS
+#  define MSEG_ALIGN_BITS       (17)	/*SVERK Configure me! */
+#else
 #  define MSEG_ALIGN_BITS       (12)    /*SVERK Configure me! */
 #endif
 
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