--- zzzz-none-000/linux-4.1.38/drivers/scsi/hosts.c	2017-01-18 18:48:06.000000000 +0000
+++ bcm63-7582-715/linux-4.1.38/drivers/scsi/hosts.c	2020-11-25 10:06:48.000000000 +0000
@@ -34,6 +34,10 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
+#if defined(CONFIG_BCM_KF_USB_STORAGE)
+#include <linux/bcm_realtime.h>
+#endif
+
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_transport.h>
@@ -479,6 +483,14 @@
 			PTR_ERR(shost->ehandler));
 		goto fail_kfree;
 	}
+#if defined(CONFIG_BCM_KF_USB_STORAGE)
+    /*convert the thread to realtime RR thread */
+    {
+        struct sched_param param;
+        param.sched_priority = BCM_RTPRIO_DATA;
+        sched_setscheduler(shost->ehandler, SCHED_RR, &param);
+    }
+#endif	
 
 	shost->tmf_work_q = alloc_workqueue("scsi_tmf_%d",
 					    WQ_UNBOUND | WQ_MEM_RECLAIM,