[PATCH 02/11] Remove two strange uses of MAX_NR_ZONES

From: Christoph Lameter
Date: Fri Jul 07 2006 - 19:18:36 EST


Fix strange uses of MAX_NR_ZONES

Sometimes we use MAX_NR_ZONES - x to refer to a zone. Make that
explicit.

Signed-off-by: Christoph Lameter <clameter@xxxxxxx>

Index: linux-2.6.17-mm6/arch/x86_64/mm/init.c
===================================================================
--- linux-2.6.17-mm6.orig/arch/x86_64/mm/init.c 2006-07-03 13:47:14.329487884 -0700
+++ linux-2.6.17-mm6/arch/x86_64/mm/init.c 2006-07-03 14:33:13.479261596 -0700
@@ -536,7 +536,7 @@ int memory_add_physaddr_to_nid(u64 start
int arch_add_memory(int nid, u64 start, u64 size)
{
struct pglist_data *pgdat = NODE_DATA(nid);
- struct zone *zone = pgdat->node_zones + MAX_NR_ZONES-2;
+ struct zone *zone = pgdat->node_zones + ZONE_NORMAL;
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
int ret;
Index: linux-2.6.17-mm6/arch/i386/mm/init.c
===================================================================
--- linux-2.6.17-mm6.orig/arch/i386/mm/init.c 2006-07-03 13:47:12.740718955 -0700
+++ linux-2.6.17-mm6/arch/i386/mm/init.c 2006-07-03 14:33:13.481214600 -0700
@@ -657,7 +657,7 @@ void __init mem_init(void)
int arch_add_memory(int nid, u64 start, u64 size)
{
struct pglist_data *pgdata = &contig_page_data;
- struct zone *zone = pgdata->node_zones + MAX_NR_ZONES-1;
+ struct zone *zone = pgdata->node_zones + ZONE_HIGHMEM;
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;

-
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