[SCSI] mpt2sas: fix hotplug event processing

Here's a fix for hotplug events.  The useage of queue_delayed_work seems
to broke the fifo for processing of firmware events.  After several iterations
of adding and removing cabling connected to jbods, the devices are not
getting added becuase kernel thread is activited out of order.

Signed-off-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 4dffbec..e3a7967 100644 (file)
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -119,7 +119,7 @@ struct sense_info {
  */
 struct fw_event_work {
        struct list_head        list;
-       struct delayed_work     work;
+       struct work_struct      work;
        struct MPT2SAS_ADAPTER *ioc;
        u8                      VF_ID;
        u8                      host_reset_handling;
@@ -2007,8 +2007,8 @@ _scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
 
        spin_lock_irqsave(&ioc->fw_event_lock, flags);
        list_add_tail(&fw_event->list, &ioc->fw_event_list);
-       INIT_DELAYED_WORK(&fw_event->work, _firmware_event_work);
-       queue_delayed_work(ioc->firmware_event_thread, &fw_event->work, 1);
+       INIT_WORK(&fw_event->work, _firmware_event_work);
+       queue_work(ioc->firmware_event_thread, &fw_event->work);
        spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
 }
 
@@ -2052,7 +2052,7 @@ _scsih_fw_event_requeue(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
                return;
 
        spin_lock_irqsave(&ioc->fw_event_lock, flags);
-       queue_delayed_work(ioc->firmware_event_thread, &fw_event->work, delay);
+       queue_work(ioc->firmware_event_thread, &fw_event->work);
        spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
 }
 
@@ -4961,7 +4961,7 @@ static void
 _firmware_event_work(struct work_struct *work)
 {
        struct fw_event_work *fw_event = container_of(work,
-           struct fw_event_work, work.work);
+           struct fw_event_work, work);
        unsigned long flags;
        struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;