[CPUFREQ] ondemand/conservative: deprecate sampling_rate{min,max}

The same info can be obtained via the transition_latency sysfs file

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>

2 files changed, 32 insertions, 0 deletions

diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index c6b3c6a..0912d7c 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -140,11 +140,26 @@ static struct notifier_block dbs_cpufreq_notifier_block = {
 /************************** sysfs interface ************************/
 static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
 {
+	static int print_once;
+
+	if (!print_once) {
+		printk(KERN_INFO "CPUFREQ: conservative sampling_rate_max "
+		       "sysfs file is deprecated - used by: %s\n",
+		       current->comm);
+		print_once = 1;
+	}
 	return sprintf(buf, "%u\n", MAX_SAMPLING_RATE);
 }
 
 static ssize_t show_sampling_rate_min(struct cpufreq_policy *policy, char *buf)
 {
+	static int print_once;
+
+	if (!print_once) {
+		printk(KERN_INFO "CPUFREQ: conservative sampling_rate_max "
+		       "sysfs file is deprecated - used by: %s\n", current->comm);
+		print_once = 1;
+	}
 	return sprintf(buf, "%u\n", MIN_SAMPLING_RATE);
 }
 
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 1fa4420..32ddeaa 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -21,6 +21,7 @@
 #include <linux/hrtimer.h>
 #include <linux/tick.h>
 #include <linux/ktime.h>
+#include <linux/sched.h>
 
 /*
  * dbs is used in this file as a shortform for demandbased switching
@@ -203,11 +204,27 @@ static void ondemand_powersave_bias_init(void)
 /************************** sysfs interface ************************/
 static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
 {
+	static int print_once;
+
+	if (!print_once) {
+		printk(KERN_INFO "CPUFREQ: ondemand sampling_rate_max "
+		       "sysfs file is deprecated - used by: %s\n",
+		       current->comm);
+		print_once = 1;
+	}
 	return sprintf(buf, "%u\n", MAX_SAMPLING_RATE);
 }
 
 static ssize_t show_sampling_rate_min(struct cpufreq_policy *policy, char *buf)
 {
+	static int print_once;
+
+	if (!print_once) {
+		printk(KERN_INFO "CPUFREQ: ondemand sampling_rate_min "
+		       "sysfs file is deprecated - used by: %s\n",
+		       current->comm);
+		print_once = 1;
+	}
 	return sprintf(buf, "%u\n", MIN_SAMPLING_RATE);
 }