* gc.c: PAGE_BITMAP_PLANES (the number of bitmap) is 4, not 3.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53470 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Sat Jan  9 05:45:40 2016  Koichi Sasada  <ko1@atdot.net>
+
+	* gc.c: PAGE_BITMAP_PLANES (the number of bitmap) is 4, not 3.
+
 Sat Jan  9 05:42:57 2016  Koichi Sasada  <ko1@atdot.net>
 
 	* gc.c: rename constant names HEAP_* to PAGE_*.

gc.c

@@ -638,7 +638,7 @@ enum {
     PAGE_OBJ_LIMIT = (unsigned int)((PAGE_SIZE - sizeof(struct heap_page_header))/sizeof(struct RVALUE)),
     PAGE_BITMAP_LIMIT = CEILDIV(CEILDIV(PAGE_SIZE, sizeof(struct RVALUE)), BITS_BITLENGTH),
     PAGE_BITMAP_SIZE = (BITS_SIZE * PAGE_BITMAP_LIMIT),
-    PAGE_BITMAP_PLANES = USE_RGENGC ? 3 : 1 /* RGENGC: mark bits, rememberset bits and oldgen bits */
+    PAGE_BITMAP_PLANES = USE_RGENGC ? 4 : 1 /* RGENGC: mark, unprotected, uncollectible, marking */
 };
 
 struct heap_page {