[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, 3 insertions, 3 deletions

diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index aca2f09cd842..73560ef6f802 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -74,7 +74,7 @@ static int __init smt_setup(void)
         val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay",
                                            NULL);
         if (!smt_snooze_cmdline && val) {
-                for_each_cpu(cpu)
+                for_each_possible_cpu(cpu)
                         per_cpu(smt_snooze_delay, cpu) = *val;
         }
 
@@ -93,7 +93,7 @@ static int __init setup_smt_snooze_delay(char *str)
         smt_snooze_cmdline = 1;
 
         if (get_option(&str, &snooze)) {
-                for_each_cpu(cpu)
+                for_each_possible_cpu(cpu)
                         per_cpu(smt_snooze_delay, cpu) = snooze;
         }
 
@@ -347,7 +347,7 @@ static int __init topology_init(void)
 
         register_cpu_notifier(&sysfs_cpu_nb);
 
-        for_each_cpu(cpu) {
+        for_each_possible_cpu(cpu) {
                 struct cpu *c = &per_cpu(cpu_devices, cpu);
 
 #ifdef CONFIG_NUMA