linux-kernel - [PATCH 1/3] io_uring: rename prev to head

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Message-Id: <13d9584a55d8ff902650678a480021b7109c153d.1576538176.git.asml.silence@gmail.com>
Date:   Tue, 17 Dec 2019 02:22:07 +0300
From:   Pavel Begunkov <asml.silence@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] io_uring: rename prev to head

Calling "prev" a head of a link is a bit misleading. Rename it

Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
---
 fs/io_uring.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 339b57aac5ca..96ddfc52cb0f 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3399,10 +3399,10 @@ static bool io_submit_sqe(struct io_kiocb *req, struct io_submit_state *state,
 	 * conditions are true (normal request), then just queue it.
 	 */
 	if (*link) {
-		struct io_kiocb *prev = *link;
+		struct io_kiocb *head = *link;
 
 		if (req->sqe->flags & IOSQE_IO_DRAIN)
-			(*link)->flags |= REQ_F_DRAIN_LINK | REQ_F_IO_DRAIN;
+			head->flags |= REQ_F_DRAIN_LINK | REQ_F_IO_DRAIN;
 
 		if (req->sqe->flags & IOSQE_IO_HARDLINK)
 			req->flags |= REQ_F_HARDLINK;
@@ -3415,11 +3415,11 @@ static bool io_submit_sqe(struct io_kiocb *req, struct io_submit_state *state,
 		ret = io_req_defer_prep(req);
 		if (ret) {
 			/* fail even hard links since we don't submit */
-			prev->flags |= REQ_F_FAIL_LINK;
+			head->flags |= REQ_F_FAIL_LINK;
 			goto err_req;
 		}
-		trace_io_uring_link(ctx, req, prev);
-		list_add_tail(&req->link_list, &prev->link_list);
+		trace_io_uring_link(ctx, req, head);
+		list_add_tail(&req->link_list, &head->link_list);
 	} else if (req->sqe->flags & (IOSQE_IO_LINK|IOSQE_IO_HARDLINK)) {
 		req->flags |= REQ_F_LINK;
 		if (req->sqe->flags & IOSQE_IO_HARDLINK)
-- 
2.24.0