How to send SCSI command from kernel thread.

[hari krishnan <p.harikrishnan22@xxxxxxxxx>]

Hi All,

I need to send SCSI command asynchronously(Don't want to block my thread) and it should be non-GPL API.
I found scsi_execute_req() can be used to send the command, but its a blocking call, I could prepare CDB and send using blk_execute_rq_nowait(). 
However blk_execute_rq_nowait() and __blk_put_request() are under GPL.

Would you please tell me non-GPL equivalent of blk_execute_rq_nowait() and __blk_put_request() calls.

Thanks in advance.
Hari