diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index 39838c6..31adda1 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -66,7 +66,7 @@
 		if (pr->limit.thermal.tx > tx)
 			tx = pr->limit.thermal.tx;
 
-		result = acpi_processor_set_throttling(pr, tx);
+		result = acpi_processor_set_throttling(pr, tx, false);
 		if (result)
 			goto end;
 	}
@@ -421,12 +421,12 @@
 
 	if (state <= max_pstate) {
 		if (pr->flags.throttling && pr->throttling.state)
-			result = acpi_processor_set_throttling(pr, 0);
+			result = acpi_processor_set_throttling(pr, 0, false);
 		cpufreq_set_cur_state(pr->id, state);
 	} else {
 		cpufreq_set_cur_state(pr->id, max_pstate);
 		result = acpi_processor_set_throttling(pr,
-				state - max_pstate);
+				state - max_pstate, false);
 	}
 	return result;
 }
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 2275437..841be4e 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -62,7 +62,8 @@
 #define THROTTLING_POSTCHANGE      (2)
 
 static int acpi_processor_get_throttling(struct acpi_processor *pr);
-int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
+int acpi_processor_set_throttling(struct acpi_processor *pr,
+						int state, bool force);
 
 static int acpi_processor_update_tsd_coord(void)
 {
@@ -361,7 +362,7 @@
 		 */
 		target_state = throttling_limit;
 	}
-	return acpi_processor_set_throttling(pr, target_state);
+	return acpi_processor_set_throttling(pr, target_state, false);
 }
 
 /*
@@ -842,7 +843,7 @@
 			ACPI_WARNING((AE_INFO,
 				"Invalid throttling state, reset"));
 			state = 0;
-			ret = acpi_processor_set_throttling(pr, state);
+			ret = acpi_processor_set_throttling(pr, state, true);
 			if (ret)
 				return ret;
 		}
@@ -915,7 +916,7 @@
 }
 
 static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
-					      int state)
+					      int state, bool force)
 {
 	u32 value = 0;
 	u32 duty_mask = 0;
@@ -930,7 +931,7 @@
 	if (!pr->flags.throttling)
 		return -ENODEV;
 
-	if (state == pr->throttling.state)
+	if (!force && (state == pr->throttling.state))
 		return 0;
 
 	if (state < pr->throttling_platform_limit)
@@ -988,7 +989,7 @@
 }
 
 static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
-					     int state)
+					     int state, bool force)
 {
 	int ret;
 	acpi_integer value;
@@ -1002,7 +1003,7 @@
 	if (!pr->flags.throttling)
 		return -ENODEV;
 
-	if (state == pr->throttling.state)
+	if (!force && (state == pr->throttling.state))
 		return 0;
 
 	if (state < pr->throttling_platform_limit)
@@ -1018,7 +1019,8 @@
 	return 0;
 }
 
-int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
+int acpi_processor_set_throttling(struct acpi_processor *pr,
+						int state, bool force)
 {
 	cpumask_var_t saved_mask;
 	int ret = 0;
@@ -1070,7 +1072,7 @@
 		/* FIXME: use work_on_cpu() */
 		set_cpus_allowed_ptr(current, cpumask_of(pr->id));
 		ret = p_throttling->acpi_processor_set_throttling(pr,
-						t_state.target_state);
+						t_state.target_state, force);
 	} else {
 		/*
 		 * When the T-state coordination is SW_ALL or HW_ALL,
@@ -1103,7 +1105,7 @@
 			set_cpus_allowed_ptr(current, cpumask_of(i));
 			ret = match_pr->throttling.
 				acpi_processor_set_throttling(
-				match_pr, t_state.target_state);
+				match_pr, t_state.target_state, force);
 		}
 	}
 	/*
@@ -1201,7 +1203,7 @@
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Disabling throttling (was T%d)\n",
 				  pr->throttling.state));
-		result = acpi_processor_set_throttling(pr, 0);
+		result = acpi_processor_set_throttling(pr, 0, false);
 		if (result)
 			goto end;
 	}
@@ -1307,7 +1309,7 @@
 	if (strcmp(tmpbuf, charp) != 0)
 		return -EINVAL;
 
-	result = acpi_processor_set_throttling(pr, state_val);
+	result = acpi_processor_set_throttling(pr, state_val, false);
 	if (result)
 		return result;
 
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index baf1e0a..740ac3a 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -174,7 +174,7 @@
 	cpumask_var_t shared_cpu_map;
 	int (*acpi_processor_get_throttling) (struct acpi_processor * pr);
 	int (*acpi_processor_set_throttling) (struct acpi_processor * pr,
-					      int state);
+					      int state, bool force);
 
 	u32 address;
 	u8 duty_offset;
@@ -321,7 +321,8 @@
 /* in processor_throttling.c */
 int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
 int acpi_processor_get_throttling_info(struct acpi_processor *pr);
-extern int acpi_processor_set_throttling(struct acpi_processor *pr, int state);
+extern int acpi_processor_set_throttling(struct acpi_processor *pr,
+					 int state, bool force);
 extern const struct file_operations acpi_processor_throttling_fops;
 extern void acpi_processor_throttling_init(void);
 /* in processor_idle.c */