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path: root/drivers/acpi/processor_throttling.c
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Diffstat (limited to 'drivers/acpi/processor_throttling.c')
-rw-r--r--drivers/acpi/processor_throttling.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index a56fc6c4394b..a2c3f9cfa549 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -827,6 +827,7 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
827static int acpi_processor_get_throttling(struct acpi_processor *pr) 827static int acpi_processor_get_throttling(struct acpi_processor *pr)
828{ 828{
829 cpumask_t saved_mask; 829 cpumask_t saved_mask;
830 cpumask_of_cpu_ptr_declare(new_mask);
830 int ret; 831 int ret;
831 832
832 if (!pr) 833 if (!pr)
@@ -838,7 +839,8 @@ static int acpi_processor_get_throttling(struct acpi_processor *pr)
838 * Migrate task to the cpu pointed by pr. 839 * Migrate task to the cpu pointed by pr.
839 */ 840 */
840 saved_mask = current->cpus_allowed; 841 saved_mask = current->cpus_allowed;
841 set_cpus_allowed_ptr(current, &cpumask_of_cpu(pr->id)); 842 cpumask_of_cpu_ptr_next(new_mask, pr->id);
843 set_cpus_allowed_ptr(current, new_mask);
842 ret = pr->throttling.acpi_processor_get_throttling(pr); 844 ret = pr->throttling.acpi_processor_get_throttling(pr);
843 /* restore the previous state */ 845 /* restore the previous state */
844 set_cpus_allowed_ptr(current, &saved_mask); 846 set_cpus_allowed_ptr(current, &saved_mask);
@@ -987,6 +989,7 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
987int acpi_processor_set_throttling(struct acpi_processor *pr, int state) 989int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
988{ 990{
989 cpumask_t saved_mask; 991 cpumask_t saved_mask;
992 cpumask_of_cpu_ptr_declare(new_mask);
990 int ret = 0; 993 int ret = 0;
991 unsigned int i; 994 unsigned int i;
992 struct acpi_processor *match_pr; 995 struct acpi_processor *match_pr;
@@ -1025,7 +1028,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
1025 * it can be called only for the cpu pointed by pr. 1028 * it can be called only for the cpu pointed by pr.
1026 */ 1029 */
1027 if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) { 1030 if (p_throttling->shared_type == DOMAIN_COORD_TYPE_SW_ANY) {
1028 set_cpus_allowed_ptr(current, &cpumask_of_cpu(pr->id)); 1031 cpumask_of_cpu_ptr_next(new_mask, pr->id);
1032 set_cpus_allowed_ptr(current, new_mask);
1029 ret = p_throttling->acpi_processor_set_throttling(pr, 1033 ret = p_throttling->acpi_processor_set_throttling(pr,
1030 t_state.target_state); 1034 t_state.target_state);
1031 } else { 1035 } else {
@@ -1056,7 +1060,8 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
1056 continue; 1060 continue;
1057 } 1061 }
1058 t_state.cpu = i; 1062 t_state.cpu = i;
1059 set_cpus_allowed_ptr(current, &cpumask_of_cpu(i)); 1063 cpumask_of_cpu_ptr_next(new_mask, i);
1064 set_cpus_allowed_ptr(current, new_mask);
1060 ret = match_pr->throttling. 1065 ret = match_pr->throttling.
1061 acpi_processor_set_throttling( 1066 acpi_processor_set_throttling(
1062 match_pr, t_state.target_state); 1067 match_pr, t_state.target_state);