From: Hao Xu <howeyxu@tencent.com>
Date: Thu, 16 Jun 2022 09:22:01 +0000 (+0100)
Subject: io_uring: poll: remove unnecessary req->ref set
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3654ab0c51a91036d15dd2fd9c2809317edf2228;p=linux.git

io_uring: poll: remove unnecessary req->ref set

We now don't need to set req->refcount for poll requests since the
reworked poll code ensures no request release race.

Signed-off-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/ec6fee45705890bdb968b0c175519242753c0215.1655371007.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/io_uring/poll.c b/io_uring/poll.c
index 558dc170468ad..fdb6b1101ffcb 100644
--- a/io_uring/poll.c
+++ b/io_uring/poll.c
@@ -689,7 +689,6 @@ int io_poll_add_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 	if ((flags & IORING_POLL_ADD_MULTI) && (req->flags & REQ_F_CQE_SKIP))
 		return -EINVAL;
 
-	io_req_set_refcount(req);
 	poll->events = io_poll_parse_events(sqe, flags);
 	return 0;
 }