[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/parisc/mm/init.c b/arch/parisc/mm/init.c
index c7329615ef94..25ad28d63e88 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -551,7 +551,7 @@ void show_mem(void)
 
                                 printk("Zone list for zone %d on node %d: ", j, i);
                                 for (k = 0; zl->zones[k] != NULL; k++) 
-                                        printk("[%d/%s] ", zl->zones[k]->zone_pgdat->node_id, zl->zones[k]->name);
+                                        printk("[%d/%s] ", zone_to_nid(zl->zones[k]), zl->zones[k]->name);
                                 printk("\n");
                         }
                 }