On Wed, 10 Nov 2021 15:49:30 +0000, Pavel Begunkov wrote:
> It's expensive enough to post an CQE, and there are other
> reasons to want to ignore them, e.g. for link handling and
> it may just be more convenient for the userspace.
>
> Try to cover most of the use cases with one flag. The overhead
> is one "if (cqe->flags & IOSQE_CQE_SKIP_SUCCESS)" check per
> requests and a bit bloated req_set_fail(), should be bearable.
>
> [...]
Applied, thanks!
[1/4] io_uring: clean cqe filling functions
commit: 913a571affedd17239c4d4ea90c8874b32fc2191
[2/4] io_uring: add option to skip CQE posting
commit: 04c76b41ca974b508522831441dd7e5b1b59cbb0
[3/4] io_uring: don't spinlock when not posting CQEs
commit: 3d4aeb9f98058c3bdfef5286e240cf18c50fee89
[4/4] io_uring: disable drain with cqe skip
commit: 5562a8d71aa32ea27133d8b10406b3dcd57c01a5
Best regards,
--
Jens Axboe
