[IA64] for_each_possible_cpu: ia64

for_each_cpu() actually iterates across all possible CPUs.  We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs.  This is inefficient and
possibly buggy.

We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.

This patch replaces for_each_cpu with for_each_possible_cpu under
arch/ia64/kernel/.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fjitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/module.c

@@ -947,7 +947,7 @@ void
 percpu_modcopy (void *pcpudst, const void *src, unsigned long size)
 {
 	unsigned int i;
-	for_each_cpu(i) {
+	for_each_possible_cpu(i) {
 		memcpy(pcpudst + __per_cpu_offset[i], src, size);
 	}
 }