[PATCH] for_each_possible_cpu

Backport for_each_possible_cpu() into 2.6.16.  Fixes the alpha build, and any
future occurrences.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

include/linux/cpumask.h

@@ -408,6 +408,7 @@ extern cpumask_t cpu_present_map;
 })
 
 #define for_each_cpu(cpu)	  for_each_cpu_mask((cpu), cpu_possible_map)
+#define for_each_possible_cpu(cpu)  for_each_cpu_mask((cpu), cpu_possible_map)
 #define for_each_online_cpu(cpu)  for_each_cpu_mask((cpu), cpu_online_map)
 #define for_each_present_cpu(cpu) for_each_cpu_mask((cpu), cpu_present_map)