1 files changed, 9 insertions, 2 deletions

diff --git a/mm/memblock.c b/mm/memblock.c
index 022d4cbb3618..ea31045ba704 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -26,6 +26,13 @@
 
 #include "internal.h"
 
+#define INIT_MEMBLOCK_REGIONS                   128
+#define INIT_PHYSMEM_REGIONS                    4
+
+#ifndef INIT_MEMBLOCK_RESERVED_REGIONS
+# define INIT_MEMBLOCK_RESERVED_REGIONS         INIT_MEMBLOCK_REGIONS
+#endif
+
 /**
  * DOC: memblock overview
  *
@@ -92,7 +99,7 @@ unsigned long max_pfn;
 unsigned long long max_possible_pfn;
 
 static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
-static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
+static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_RESERVED_REGIONS] __initdata_memblock;
 #ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
 static struct memblock_region memblock_physmem_init_regions[INIT_PHYSMEM_REGIONS] __initdata_memblock;
 #endif
@@ -105,7 +112,7 @@ struct memblock memblock __initdata_memblock = {
 
         .reserved.regions       = memblock_reserved_init_regions,
         .reserved.cnt           = 1,    /* empty dummy entry */
-        .reserved.max           = INIT_MEMBLOCK_REGIONS,
+        .reserved.max           = INIT_MEMBLOCK_RESERVED_REGIONS,
         .reserved.name          = "reserved",
 
 #ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP