Because 2.6.13-mm2 adds new zone DMA32, ZONES_SHIFT becomes 3.
So, flags bits reserved for (SECTION | NODE | ZONE) should be increase.
-- Kame
==
ZONE_SHIFT is increased, FLAGS_RESERVED should be.
Signed-off-by Kamezawa Hiroyuki <[email protected]>
Index: linux-2.6.13-mm2/include/linux/mmzone.h
===================================================================
--- linux-2.6.13-mm2.orig/include/linux/mmzone.h
+++ linux-2.6.13-mm2/include/linux/mmzone.h
@@ -458,10 +458,11 @@ extern struct pglist_data contig_page_da
#if BITS_PER_LONG == 32 || defined(ARCH_HAS_ATOMIC_UNSIGNED)
/*
* with 32 bit page->flags field, we reserve 8 bits for node/zone info.
- * there are 3 zones (2 bits) and this leaves 8-2=6 bits for nodes.
+ * there are 4 zones (3 bits) and this leaves 8-2=6 bits for nodes.
+ * +6bits for sections if CONFIG_SPARSEMEM
*/
-#define FLAGS_RESERVED 8
+#define FLAGS_RESERVED 9
#elif BITS_PER_LONG == 64
/*
-
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