diff mbox series

[for-5.20,1/6] io_uring: poll: remove unnecessary req->ref set

Message ID 20220611122224.941800-1-hao.xu@linux.dev (mailing list archive)
State New
Headers show
Series [for-5.20,1/6] io_uring: poll: remove unnecessary req->ref set | expand

Commit Message

Hao Xu June 11, 2022, 12:22 p.m. UTC
From: Hao Xu <howeyxu@tencent.com>

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>
---
 io_uring/poll.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Pavel Begunkov June 12, 2022, 5:44 p.m. UTC | #1
On 6/11/22 13:22, Hao Xu wrote:
> From: Hao Xu <howeyxu@tencent.com>
> 
> We now don't need to set req->refcount for poll requests since the
> reworked poll code ensures no request release race.

Nice, I took this one into the 5.20 branch, cheers

https://github.com/isilence/linux/tree/io_uring/for-5.20

> 
> Signed-off-by: Hao Xu <howeyxu@tencent.com>
> ---
>   io_uring/poll.c | 1 -
>   1 file changed, 1 deletion(-)
> 
> diff --git a/io_uring/poll.c b/io_uring/poll.c
> index 0df5eca93b16..73584c4e3e9b 100644
> --- a/io_uring/poll.c
> +++ b/io_uring/poll.c
> @@ -683,7 +683,6 @@ 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);
>   	req->apoll_events = poll->events = io_poll_parse_events(sqe, flags);
>   	return 0;
>   }
diff mbox series

Patch

diff --git a/io_uring/poll.c b/io_uring/poll.c
index 0df5eca93b16..73584c4e3e9b 100644
--- a/io_uring/poll.c
+++ b/io_uring/poll.c
@@ -683,7 +683,6 @@  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);
 	req->apoll_events = poll->events = io_poll_parse_events(sqe, flags);
 	return 0;
 }