Provide a means to trap usages of per_cpu map variables before
they are setup.  Define CONFIG_DEBUG_PER_CPU_MAPS to activate.

Based on 2.6.24-rc8-mm1 + latest (08/1/21) git-x86

Signed-off-by: Mike Travis <travis@sgi.com>
---
 include/asm-x86/topology.h |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -58,7 +58,7 @@ static inline int early_cpu_to_node(int 
 
 	if (cpu_to_node_map)
 		return cpu_to_node_map[cpu];
-	else if(per_cpu_offset(cpu))
+	else if (per_cpu_offset(cpu))
 		return per_cpu(x86_cpu_to_node_map, cpu);
 	else
 		return NUMA_NO_NODE;
@@ -71,7 +71,7 @@ static inline int cpu_to_node(int cpu)
 		printk("KERN_NOTICE cpu_to_node(%d): usage too early!\n",
 			(int)cpu);
 		dump_stack();
-		return ((u16 *)x86_cpu_to_node_map_early_ptr)[cpu];
+		return ((int *)x86_cpu_to_node_map_early_ptr)[cpu];
 	}
 #endif
 	if (per_cpu_offset(cpu))
@@ -81,15 +81,6 @@ static inline int cpu_to_node(int cpu)
 }
 #endif /* CONFIG_X86_64 */
 
-static inline int cpu_to_node(int cpu)
-{
-	if(per_cpu_offset(cpu))
-		return per_cpu(x86_cpu_to_node_map, cpu);
-	else
-		return NUMA_NO_NODE;
-}
-#endif /* CONFIG_X86_64 */
-
 /*
  * Returns the number of the node containing Node 'node'. This
  * architecture is flat, so it is a pretty simple function!

-- 
--
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/