[PATCH] io_uring: undeprecate epoll_ctl support

[PATCH] io_uring: undeprecate epoll_ctl support

[Ben Noordhuis]

Libuv recently started using it so there is at least one consumer now.

Cc: stable@vger.kernel.org
Fixes: 61a2732af4b0 ("io_uring: deprecate epoll_ctl support")
Link: https://github.com/libuv/libuv/pull/3979
Signed-off-by: Ben Noordhuis <info@bnoordhuis.nl>
---
 io_uring/epoll.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/io_uring/epoll.c b/io_uring/epoll.c
index 9aa74d2c80bc..89bff2068a19 100644
--- a/io_uring/epoll.c
+++ b/io_uring/epoll.c
@@ -25,10 +25,6 @@ int io_epoll_ctl_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 {
 	struct io_epoll *epoll = io_kiocb_to_cmd(req, struct io_epoll);
 
-	pr_warn_once("%s: epoll_ctl support in io_uring is deprecated and will "
-		     "be removed in a future Linux kernel version.\n",
-		     current->comm);
-
 	if (sqe->buf_index || sqe->splice_fd_in)
 		return -EINVAL;
 
-- 
2.39.2

Re: [PATCH] io_uring: undeprecate epoll_ctl support

[Sam James]

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Hi,

New libuv is indeed in the wild now and CMake uses it, so I end up
getting
a tonne of:
```
[ 1763.697364] isc-net-0000: epoll_ctl support in io_uring is deprecated
and will be removed in a future Linux kernel version.
```

Could you confirm if this patch looks likely to land so we know if it's
OK
to backport it downstream?

Thank you!

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Re: [PATCH] io_uring: undeprecate epoll_ctl support

[Jens Axboe]

On 5/26/23 7:48 PM, Sam James wrote:
> Hi,
> 
> New libuv is indeed in the wild now and CMake uses it, so I end up
> getting
> a tonne of:
> ```
> [ 1763.697364] isc-net-0000: epoll_ctl support in io_uring is deprecated
> and will be removed in a future Linux kernel version.
> ```
> 
> Could you confirm if this patch looks likely to land so we know if it's
> OK
> to backport it downstream?

Yeah, I think this is the best plan. I was out of town for a bit
around when it got reposted and hence missed it, I'll queue it
up for this release.

-- 
Jens Axboe

Re: [PATCH] io_uring: undeprecate epoll_ctl support

[Jens Axboe]

On Sat, 06 May 2023 11:55:02 +0200, Ben Noordhuis wrote:
> Libuv recently started using it so there is at least one consumer now.
> 
> 

Applied, thanks!

[1/1] io_uring: undeprecate epoll_ctl support
      commit: 4ea0bf4b98d66a7a790abb285539f395596bae92

Best regards,
-- 
Jens Axboe