block: remove __blk_put_request()

Now there's no difference between blk_put_request() and
__blk_put_request() anymore, get rid of the underscore version and
convert the few callers.

Reviewed-by: Hannes Reinecke <[email protected]>
Tested-by: Ming Lei <[email protected]>
Reviewed-by: Omar Sandoval <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>

drivers/target/target_core_pscsi.c

@@ -1094,7 +1094,7 @@ static void pscsi_req_done(struct request *req, blk_status_t status)
 		break;
 	}
 
-	__blk_put_request(req->q, req);
+	blk_put_request(req);
 	kfree(pt);
 }