x86-64: Move nodenumber from PDA to per-cpu.

tj: * s/nodenumber/node_number/
    * removed now unused pda variable from pda_init()

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

2 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/include/asm/pda.h b/arch/x86/include/asm/pda.h
index 4527d70314d4..b30ef6bddc43 100644
--- a/arch/x86/include/asm/pda.h
+++ b/arch/x86/include/asm/pda.h
@@ -22,7 +22,6 @@ struct x8664_pda {
                                         /* gcc-ABI: this canary MUST be at
                                            offset 40!!! */
 #endif
-        short nodenumber;               /* number of current node (32k max) */
         short in_bootmem;               /* pda lives in bootmem */
         short isidle;
 } ____cacheline_aligned_in_smp;
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 87ca3fd86e88..ffea1fe03a99 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -83,7 +83,8 @@ extern cpumask_t *node_to_cpumask_map;
 DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map);
 
 /* Returns the number of the current Node. */
-#define numa_node_id()          read_pda(nodenumber)
+DECLARE_PER_CPU(int, node_number);
+#define numa_node_id()          percpu_read(node_number)
 
 #ifdef CONFIG_DEBUG_PER_CPU_MAPS
 extern int cpu_to_node(int cpu);