[PATCH 10/10] sparc64: Convert cpu_sibling_map to a per_cpu data array (v3)

[travis]

Convert cpu_sibling_map to a per_cpu cpumask_t array for the sparc64
architecture.  This fixes build errors in block/blktrace.c and
kernel/sched.c when CONFIG_SCHED_SMT is defined.

Note: these changes have not been built nor tested.

Signed-off-by: Mike Travis <[EMAIL PROTECTED]>
---
 arch/sparc64/kernel/smp.c      |   17 ++++++++---------
 include/asm-sparc64/smp.h      |    3 ++-
 include/asm-sparc64/topology.h |    2 +-
 3 files changed, 11 insertions(+), 11 deletions(-)

--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -52,14 +52,13 @@
 
 cpumask_t cpu_possible_map __read_mostly = CPU_MASK_NONE;
 cpumask_t cpu_online_map __read_mostly = CPU_MASK_NONE;
-cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly =
-       { [0 ... NR_CPUS-1] = CPU_MASK_NONE };
+DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE;
 cpumask_t cpu_core_map[NR_CPUS] __read_mostly =
        { [0 ... NR_CPUS-1] = CPU_MASK_NONE };
 
 EXPORT_SYMBOL(cpu_possible_map);
 EXPORT_SYMBOL(cpu_online_map);
-EXPORT_SYMBOL(cpu_sibling_map);
+EXPORT_PER_CPU_SYMBOL(cpu_sibling_map);
 EXPORT_SYMBOL(cpu_core_map);
 
 static cpumask_t smp_commenced_mask;
@@ -1259,16 +1258,16 @@
        for_each_present_cpu(i) {
                unsigned int j;
 
-               cpus_clear(cpu_sibling_map[i]);
+               cpus_clear(per_cpu(cpu_sibling_map, i));
                if (cpu_data(i).proc_id == -1) {
-                       cpu_set(i, cpu_sibling_map[i]);
+                       cpu_set(i, per_cpu(cpu_sibling_map, i));
                        continue;
                }
 
                for_each_present_cpu(j) {
                        if (cpu_data(i).proc_id ==
                            cpu_data(j).proc_id)
-                               cpu_set(j, cpu_sibling_map[i]);
+                               cpu_set(j, per_cpu(cpu_sibling_map, i));
                }
        }
 }
@@ -1340,9 +1339,9 @@
                cpu_clear(cpu, cpu_core_map[i]);
        cpus_clear(cpu_core_map[cpu]);
 
-       for_each_cpu_mask(i, cpu_sibling_map[cpu])
-               cpu_clear(cpu, cpu_sibling_map[i]);
-       cpus_clear(cpu_sibling_map[cpu]);
+       for_each_cpu_mask(i, per_cpu(cpu_sibling_map, cpu))
+               cpu_clear(cpu, per_cpu(cpu_sibling_map, i));
+       cpus_clear(per_cpu(cpu_sibling_map, cpu));
 
        c = &cpu_data(cpu);
 
--- a/include/asm-sparc64/smp.h
+++ b/include/asm-sparc64/smp.h
@@ -28,8 +28,9 @@
  
 #include <asm/bitops.h>
 #include <asm/atomic.h>
+#include <asm/percpu.h>
 
-extern cpumask_t cpu_sibling_map[NR_CPUS];
+DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
 extern cpumask_t cpu_core_map[NR_CPUS];
 extern int sparc64_multi_core;
 
--- a/include/asm-sparc64/topology.h
+++ b/include/asm-sparc64/topology.h
@@ -5,7 +5,7 @@
 #define topology_physical_package_id(cpu)      (cpu_data(cpu).proc_id)
 #define topology_core_id(cpu)                  (cpu_data(cpu).core_id)
 #define topology_core_siblings(cpu)            (cpu_core_map[cpu])
-#define topology_thread_siblings(cpu)          (cpu_sibling_map[cpu])
+#define topology_thread_siblings(cpu)          (per_cpu(cpu_sibling_map, cpu))
 #define mc_capable()                           (sparc64_multi_core)
 #define smt_capable()                          (sparc64_multi_core)
 #endif /* CONFIG_SMP */

-- 
-
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