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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-02-18 02:20:13 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-03-09 14:41:06 +0100
commit8847e038c1d19c20dda0d7a590e31ffa528da8a5 (patch)
tree1852c3154fd0c4929671eac4d7f786150df47f15 /drivers/cpufreq/cpufreq_ondemand.c
parent574ef14d5dbcd2743326cc1b28e61a1e7733162a (diff)
downloadlinux-8847e038c1d19c20dda0d7a590e31ffa528da8a5.tar.gz
cpufreq: governor: Move io_is_busy to struct dbs_data
The io_is_busy governor tunable is only used by the ondemand governor
and is located in the ondemand-specific data structure, but it is
looked at by the common governor code that has to do ugly things to
get to that value, so move it to struct dbs_data and modify ondemand
accordingly.

Since the conservative governor never touches that field, it will
be always 0 for that governor and it won't have any effect on the
results of computations in that case.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq/cpufreq_ondemand.c')
-rw-r--r--drivers/cpufreq/cpufreq_ondemand.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 375fdcfbc02e..330b5884b99b 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -220,7 +220,6 @@ static struct dbs_governor od_dbs_gov;
 static ssize_t store_io_is_busy(struct dbs_data *dbs_data, const char *buf,
 		size_t count)
 {
-	struct od_dbs_tuners *od_tuners = dbs_data->tuners;
 	unsigned int input;
 	int ret;
 	unsigned int j;
@@ -228,14 +227,14 @@ static ssize_t store_io_is_busy(struct dbs_data *dbs_data, const char *buf,
 	ret = sscanf(buf, "%u", &input);
 	if (ret != 1)
 		return -EINVAL;
-	od_tuners->io_is_busy = !!input;
+	dbs_data->io_is_busy = !!input;
 
 	/* we need to re-evaluate prev_cpu_idle */
 	for_each_online_cpu(j) {
 		struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info,
 									j);
 		dbs_info->cdbs.prev_cpu_idle = get_cpu_idle_time(j,
-			&dbs_info->cdbs.prev_cpu_wall, od_tuners->io_is_busy);
+			&dbs_info->cdbs.prev_cpu_wall, dbs_data->io_is_busy);
 	}
 	return count;
 }
@@ -286,7 +285,6 @@ static ssize_t store_sampling_down_factor(struct dbs_data *dbs_data,
 static ssize_t store_ignore_nice_load(struct dbs_data *dbs_data,
 		const char *buf, size_t count)
 {
-	struct od_dbs_tuners *od_tuners = dbs_data->tuners;
 	unsigned int input;
 	int ret;
 
@@ -309,7 +307,7 @@ static ssize_t store_ignore_nice_load(struct dbs_data *dbs_data,
 		struct od_cpu_dbs_info_s *dbs_info;
 		dbs_info = &per_cpu(od_cpu_dbs_info, j);
 		dbs_info->cdbs.prev_cpu_idle = get_cpu_idle_time(j,
-			&dbs_info->cdbs.prev_cpu_wall, od_tuners->io_is_busy);
+			&dbs_info->cdbs.prev_cpu_wall, dbs_data->io_is_busy);
 		if (dbs_data->ignore_nice_load)
 			dbs_info->cdbs.prev_cpu_nice =
 				kcpustat_cpu(j).cpustat[CPUTIME_NICE];
@@ -342,7 +340,7 @@ gov_show_one_common(up_threshold);
 gov_show_one_common(sampling_down_factor);
 gov_show_one_common(ignore_nice_load);
 gov_show_one_common(min_sampling_rate);
-gov_show_one(od, io_is_busy);
+gov_show_one_common(io_is_busy);
 gov_show_one(od, powersave_bias);
 
 gov_attr_rw(sampling_rate);
@@ -401,7 +399,7 @@ static int od_init(struct dbs_data *dbs_data, bool notify)
 	dbs_data->sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR;
 	dbs_data->ignore_nice_load = 0;
 	tuners->powersave_bias = default_powersave_bias;
-	tuners->io_is_busy = should_io_be_busy();
+	dbs_data->io_is_busy = should_io_be_busy();
 
 	dbs_data->tuners = tuners;
 	return 0;