Unlock the avalon qlock while sending tasks to not hold the lock for an extended period.

driver-avalon.c

@@ -1004,11 +1004,13 @@ static void *avalon_get_results(void *userdata)
 	return NULL;
 }
 
-static void avalon_rotate_array(struct cgpu_info *avalon)
+static void avalon_rotate_array(struct cgpu_info *avalon, struct avalon_info *info)
 {
+	mutex_lock(&info->qlock);
 	avalon->queued = 0;
 	if (++avalon->work_array >= AVALON_ARRAY_SIZE)
 		avalon->work_array = 0;
+	mutex_unlock(&info->qlock);
 }
 
 static void bitburner_rotate_array(struct cgpu_info *avalon)
@@ -1117,7 +1119,6 @@ static void *avalon_send_tasks(void *userdata)
 		us_timeout = 0x100000000ll / info->asic_count / info->frequency;
 		cgsleep_prepare_r(&ts_start);
 
-		mutex_lock(&info->qlock);
 		start_count = avalon->work_array * avalon_get_work_count;
 		end_count = start_count + avalon_get_work_count;
 		for (i = start_count, j = 0; i < end_count; i++, j++) {
@@ -1128,6 +1129,7 @@ static void *avalon_send_tasks(void *userdata)
 				break;
 			}
 
+			mutex_lock(&info->qlock);
 			if (likely(j < avalon->queued && !info->overheat && avalon->works[i])) {
 				avalon_init_task(&at, 0, 0, info->fan_pwm,
 						info->timeout, info->asic_count,
@@ -1148,6 +1150,7 @@ static void *avalon_send_tasks(void *userdata)
 				 * idling any miners. */
 				avalon_reset_auto(info);
 			}
+			mutex_unlock(&info->qlock);
 
 			ret = avalon_send_task(&at, avalon, info);
 
@@ -1160,8 +1163,7 @@ static void *avalon_send_tasks(void *userdata)
 			}
 		}
 
-		avalon_rotate_array(avalon);
-		mutex_unlock(&info->qlock);
+		avalon_rotate_array(avalon, info);
 
 		cgsem_post(&info->qsem);