Commit e45ec969 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
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io_uring: remove extra SQPOLL overflow flush 



c1edbf5f ("io_uring: flag SQPOLL busy condition to userspace")
added an extra overflowed CQE flush in the SQPOLL submission path due to
backpressure, which was later removed. Remove the flush and let
io_cqring_wait() / iopoll handle it.

Signed-off-by: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2a83b0724ca6ca9d16c7d79a51b77c81876b2e39.1712708261.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent a5bff518

io_uring/io_uring.c

+0 −2
Original line number Diff line number Diff line
@@ -3238,8 +3238,6 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit, 
	 */

	ret = 0;

	if (ctx->flags & IORING_SETUP_SQPOLL) {

		io_cqring_overflow_flush(ctx);



		if (unlikely(ctx->sq_data->thread == NULL)) {

			ret = -EOWNERDEAD;

			goto out;