[PATCH] for_each_possible_cpu: powerpc

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.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index e789fef4eb8a..1b73508ecb2b 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -56,7 +56,7 @@ static unsigned long get_purr(void)
 	unsigned long sum_purr = 0;
 	int cpu;
 
-	for_each_cpu(cpu) {
+	for_each_possible_cpu(cpu) {
 		sum_purr += lppaca[cpu].emulated_time_base;
 
 #ifdef PURR_DEBUG
@@ -222,7 +222,7 @@ static unsigned long get_purr(void)
 	int cpu;
 	struct cpu_usage *cu;
 
-	for_each_cpu(cpu) {
+	for_each_possible_cpu(cpu) {
 		cu = &per_cpu(cpu_usage_array, cpu);
 		sum_purr += cu->current_tb;
 	}