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authorBrian Gerst <brgerst@gmail.com>2009-01-19 00:38:59 +0900
committerTejun Heo <tj@kernel.org>2009-01-19 00:38:59 +0900
commite7a22c1ebcc1caa8178df1819d05128bb5b45ab9 (patch)
tree7769b1263850c97fa244a48ad9187ce0d74e1965 /arch/x86/include
parent5689553076c4a67b83426b076082c63085b7567a (diff)
downloadlwn-e7a22c1ebcc1caa8178df1819d05128bb5b45ab9.tar.gz
lwn-e7a22c1ebcc1caa8178df1819d05128bb5b45ab9.zip
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>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/pda.h1
-rw-r--r--arch/x86/include/asm/topology.h3
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);