msm: thermal: Optimize locking in thermal frequency

mitigation thread Optimize locking in thermal frequency mitigation thread to reduce lock contention with hotplug mitigation thread. This lock is not explicitly required since the cpu driver already have a per cluster lock down the freqency mitigation call path. This would be much optimized since the new changes will hold the lock for a shorter period and unlike previously where the lock was for entire cluster, this is per cluster lock that will further reduce lock contention. This would help thermal to do mitigation faster. Signed-off-by: Shiju Mathew <[email protected]> Signed-off-by: Pranav Vashi <[email protected]>
neobuddy89 · Jan 2, 2015 · 2f4d560 · 2f4d560
1 parent 245d14f
commit 2f4d560
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/drivers/thermal/msm_thermal.c b/drivers/thermal/msm_thermal.c
@@ -1192,7 +1192,6 @@ static __ref int do_freq_mitigation(void *data)
 		wait_for_completion(&freq_mitigation_complete);
 		INIT_COMPLETION(freq_mitigation_complete);
 
-		get_online_cpus();
 		for_each_possible_cpu(cpu) {
 			max_freq_req = (cpus[cpu].max_freq) ?
 					msm_thermal_info.freq_limit :
@@ -1220,7 +1219,6 @@ static __ref int do_freq_mitigation(void *data)
 				cpus[cpu].freq_thresh_clear = false;
 			}
 		}
-		put_online_cpus();
 	}
 	return ret;
 }