diff options
| author | Jens Axboe | 2022-06-01 12:36:42 -0600 |
|---|---|---|
| committer | Jens Axboe | 2022-07-24 18:39:12 -0600 |
| commit | 61a2732af4b0337f7e36093612c846e9f5962965 (patch) | |
| tree | 5f6ba1a9fb36fe65ad3ba35c746aaf1e17929505 /io_uring/epoll.c | |
| parent | b9ba8a4463cd78d0aee520c4bf2569820ac29929 (diff) | |
io_uring: deprecate epoll_ctl support
As far as we know, nobody ever adopted the epoll_ctl management via
io_uring. Deprecate it now with a warning, and plan on removing it in
a later kernel version. When we do remove it, we can revert the following
commits as well:
39220e8d4a2a ("eventpoll: support non-blocking do_epoll_ctl() calls")
58e41a44c488 ("eventpoll: abstract out epoll_ctl() handler")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/io-uring/CAHk-=wiTyisXBgKnVHAGYCNvkmjk=50agS2Uk6nr+n3ssLZg2w@mail.gmail.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/epoll.c')
| -rw-r--r-- | io_uring/epoll.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/io_uring/epoll.c b/io_uring/epoll.c index acbb32498127..10853e8ed078 100644 --- a/io_uring/epoll.c +++ b/io_uring/epoll.c @@ -26,6 +26,10 @@ int io_epoll_ctl_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) { struct io_epoll *epoll = io_kiocb_to_cmd(req); + 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; |