scsi: be2iscsi: Reduce driver load/unload time

Driver takes significant time to load 1m:20s and unload 40s.

Checkpatch script threw warning:
WARNING: msleep < 20ms can sleep for up to 20ms; see
Documentation/timers/timers-howto.txt

To eliminate this warning msleep(1) was replaced with msleep(20) before
submitting.

msleep(20) in init and uninit path for creation and destroying of number
of WRBQs, CQs, and EQs is adding to load/unload time.

Replace msleep with schedule_timeout_uninterruptible of 1ms as its
enough in most cases.

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index 0ef3d5a43d25ff374fcf8a202655f0b80dbee503..59b8e2dc3aca6c4ba5f87e407ea356e91c675c71 100644 (file)
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -655,7 +655,8 @@ static int be_mbox_db_ready_poll(struct be_ctrl_info *ctrl)
 
                if (time_after(jiffies, timeout))
                        break;
-               msleep(20);
+               /* 1ms sleep is enough in most cases */
+               schedule_timeout_uninterruptible(msecs_to_jiffies(1));
        } while (!ready);
 
        beiscsi_log(phba, KERN_ERR,