io_uring: rename trace_io_uring_submit_sqe() tracepoint

It has nothing to do with the SQE at this point, it's a request
submission. While in there, get rid of the 'force_nonblock' argument
which is also dead, as we only pass in true.
Signed-off-by: Jens Axboe <axboe@kernel.dk>

include/trace/events/io_uring.h

@@ -360,19 +360,18 @@ TRACE_EVENT(io_uring_complete,
 );
 
 /**
- * io_uring_submit_sqe - called before submitting one SQE
+ * io_uring_submit_req - called before submitting a request
  *
  * @req:		pointer to a submitted request
- * @force_nonblock:	whether a context blocking or not
  *
  * Allows to track SQE submitting, to understand what was the source of it, SQ
  * thread or io_uring_enter call.
  */
-TRACE_EVENT(io_uring_submit_sqe,
+TRACE_EVENT(io_uring_submit_req,
 
-	TP_PROTO(struct io_kiocb *req, bool force_nonblock),
+	TP_PROTO(struct io_kiocb *req),
 
-	TP_ARGS(req, force_nonblock),
+	TP_ARGS(req),
 
 	TP_STRUCT__entry (
 		__field(  void *,		ctx		)
@@ -380,7 +379,6 @@ TRACE_EVENT(io_uring_submit_sqe,
 		__field(  unsigned long long,	user_data	)
 		__field(  u8,			opcode		)
 		__field(  u32,			flags		)
-		__field(  bool,			force_nonblock	)
 		__field(  bool,			sq_thread	)
 
 		__string( op_str, io_uring_get_opcode(req->opcode) )
@@ -392,16 +390,15 @@ TRACE_EVENT(io_uring_submit_sqe,
 		__entry->user_data	= req->cqe.user_data;
 		__entry->opcode		= req->opcode;
 		__entry->flags		= req->flags;
-		__entry->force_nonblock	= force_nonblock;
 		__entry->sq_thread	= req->ctx->flags & IORING_SETUP_SQPOLL;
 
 		__assign_str(op_str, io_uring_get_opcode(req->opcode));
 	),
 
 	TP_printk("ring %p, req %p, user_data 0x%llx, opcode %s, flags 0x%x, "
-		  "non block %d, sq_thread %d", __entry->ctx, __entry->req,
+		  "sq_thread %d", __entry->ctx, __entry->req,
 		  __entry->user_data, __get_str(op_str),
-		  __entry->flags, __entry->force_nonblock, __entry->sq_thread)
+		  __entry->flags, __entry->sq_thread)
 );
 
 /*

io_uring/io_uring.c

@@ -2305,8 +2305,7 @@ static inline int io_submit_sqe(struct io_ring_ctx *ctx, struct io_kiocb *req,
 	if (unlikely(ret))
 		return io_submit_fail_init(sqe, req, ret);
 
-	/* don't need @sqe from now on */
-	trace_io_uring_submit_sqe(req, true);
+	trace_io_uring_submit_req(req);
 
 	/*
 	 * If we already have a head request, queue this one for async