[PATCH] io_uring: remove 'issue_flags' argument for io_req_set_rsrc_node()

[Jens Axboe <axboe@kernel.dk>]

All callers already hold the ring lock and hence are passing '0',
remove the argument and the conditional locking that it controlled.

Suggested-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

---

Took a second look at this, and it does indeed fall out nicely
if done prior to the (buggy) net conversion. Fixed that one up too,
fwiw.

diff --git a/io_uring/net.c b/io_uring/net.c
index 18507658a921..fb1f2c37f7d1 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -1261,7 +1261,7 @@ int io_send_zc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 			return -EFAULT;
 		idx = array_index_nospec(idx, ctx->nr_user_bufs);
 		req->imu = READ_ONCE(ctx->user_bufs[idx]);
-		io_req_set_rsrc_node(notif, ctx, 0);
+		io_req_set_rsrc_node(notif, ctx);
 	}
 
 	if (req->opcode == IORING_OP_SEND_ZC) {
diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h
index 8ed588036210..c50d4be4aa6d 100644
--- a/io_uring/rsrc.h
+++ b/io_uring/rsrc.h
@@ -107,14 +107,10 @@ static inline void __io_req_set_rsrc_node(struct io_kiocb *req,
 }
 
 static inline void io_req_set_rsrc_node(struct io_kiocb *req,
-					struct io_ring_ctx *ctx,
-					unsigned int issue_flags)
+					struct io_ring_ctx *ctx)
 {
-	if (!req->rsrc_node) {
-		io_ring_submit_lock(ctx, issue_flags);
+	if (!req->rsrc_node)
 		__io_req_set_rsrc_node(req, ctx);
-		io_ring_submit_unlock(ctx, issue_flags);
-	}
 }
 
 static inline u64 *io_get_tag_slot(struct io_rsrc_data *data, unsigned int idx)
diff --git a/io_uring/rw.c b/io_uring/rw.c
index c633365aa37d..4bc0d762627d 100644
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -343,7 +343,7 @@ static int io_prep_rw_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe
 		return -EFAULT;
 	index = array_index_nospec(req->buf_index, ctx->nr_user_bufs);
 	imu = ctx->user_bufs[index];
-	io_req_set_rsrc_node(req, ctx, 0);
+	io_req_set_rsrc_node(req, ctx);
 
 	io = req->async_data;
 	ret = io_import_fixed(ddir, &io->iter, imu, rw->addr, rw->len);
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index 58d0b817d6ea..6994f60d7ec7 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -220,7 +220,7 @@ int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 		 * being called. This prevents destruction of the mapped buffer
 		 * we'll need at actual import time.
 		 */
-		io_req_set_rsrc_node(req, ctx, 0);
+		io_req_set_rsrc_node(req, ctx);
 	}
 	ioucmd->cmd_op = READ_ONCE(sqe->cmd_op);
 
-- 
Jens Axboe