[PATCH] x86_64: Speed up numa_node_id by putting it directly into the PDA

Not go from the CPU number to an mapping array.
Mode number is often used now in fast paths.

This also adds a generic numa_node_id to all the topology includes

Suggested by Eric Dumazet

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h
index bbf89aa8a1af..8733ccfa442e 100644
--- a/include/asm-x86_64/pda.h
+++ b/include/asm-x86_64/pda.h
@@ -15,6 +15,7 @@ struct x8664_pda {
         int irqcount;               /* Irq nesting counter. Starts with -1 */   
         int cpunumber;              /* Logical CPU number */
         char *irqstackptr;      /* top of irqstack */
+        int nodenumber;             /* number of current node */
         unsigned int __softirq_pending;
         unsigned int __nmi_count;       /* number of NMI on this CPUs */
         struct mm_struct *active_mm;