[PATCH] NUMA: Add zone_to_nid function

There are many places where we need to determine the node of a zone.
Currently we use a difficult to read sequence of pointer dereferencing.
Put that into an inline function and use throughout VM.  Maybe we can find
a way to optimize the lookup in the future.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c
index 07c300f93764..fb5d8b747de4 100644
--- a/arch/i386/mm/discontig.c
+++ b/arch/i386/mm/discontig.c
@@ -422,7 +422,7 @@ void __init set_highmem_pages_init(int bad_ppro)
                 zone_end_pfn = zone_start_pfn + zone->spanned_pages;
 
                 printk("Initializing %s for node %d (%08lx:%08lx)\n",
-                                zone->name, zone->zone_pgdat->node_id,
+                                zone->name, zone_to_nid(zone),
                                 zone_start_pfn, zone_end_pfn);
 
                 for (node_pfn = zone_start_pfn; node_pfn < zone_end_pfn; node_pfn++) {