We return POLLIN from io_uring_poll() depending on whether there are CQEs for the userspace, and so we should use the user visible tail pointer instead of a transient cached value. Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx> --- io_uring/io_uring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index aef30d265a13..c42c1124ad5c 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -2888,7 +2888,7 @@ static __poll_t io_uring_poll(struct file *file, poll_table *wait) * pushes them to do the flush. */ - if (io_cqring_events(ctx) || io_has_work(ctx)) + if (__io_cqring_events_user(ctx) || io_has_work(ctx)) mask |= EPOLLIN | EPOLLRDNORM; return mask; -- 2.38.1
