tree 60a04435c1a2c4a34a96a82fe87aba7da23d46b1
parent 82efd43f751e4fda7515a8d6950e82c02a5c7280
author Jens Axboe <axboe@kernel.dk> 1573424903 -0700
committer Jens Axboe <axboe@kernel.dk> 1573424987 -0700

Fix io_uring_get_sqe() for IORING_SETUP_SQPOLL

If we use kernel side polling, we can't use the flush done by
io_uring_submit() as the source of truth for whether or not we
can grab more SQE entries. We need to use the kernel side for that,
as the SQPOLL thread could not have caught up yet.

Signed-off-by: Jens Axboe <axboe@kernel.dk>