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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-04-27 05:25:00 -0400
committerLen Brown <len.brown@intel.com>2006-05-13 23:11:29 -0400
commit193de0c79da580eb33a66113b62e2378fc1fb629 (patch)
tree62e278011d758b57105af7d00d1b0b9977d0f2e3 /drivers/acpi/processor_perflib.c
parent9011bff4bdc0fef1f9a782d7415c306ee61826c9 (diff)
ACPI: use for_each_possible_cpu() instead of for_each_cpu()
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. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/processor_perflib.c')
-rw-r--r--drivers/acpi/processor_perflib.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 431a8450346b..cf6167003d8a 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -628,7 +628,7 @@ int acpi_processor_preregister_performance(
retval = 0;
/* Call _PSD for all CPUs */
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
pr = processors[i];
if (!pr) {
/* Look only at processors in ACPI namespace */
@@ -659,7 +659,7 @@ int acpi_processor_preregister_performance(
* Now that we have _PSD data from all CPUs, lets setup P-state
* domain info.
*/
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
pr = processors[i];
if (!pr)
continue;
@@ -680,7 +680,7 @@ int acpi_processor_preregister_performance(
}
cpus_clear(covered_cpus);
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
pr = processors[i];
if (!pr)
continue;
@@ -704,7 +704,7 @@ int acpi_processor_preregister_performance(
pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ANY;
}
- for_each_cpu(j) {
+ for_each_possible_cpu(j) {
if (i == j)
continue;
@@ -733,7 +733,7 @@ int acpi_processor_preregister_performance(
count++;
}
- for_each_cpu(j) {
+ for_each_possible_cpu(j) {
if (i == j)
continue;
@@ -757,7 +757,7 @@ err_ret:
ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error while parsing _PSD domain information. Assuming no coordination\n"));
}
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
pr = processors[i];
if (!pr || !pr->performance)
continue;