On 4/13/20 1:19 AM, Xiaoguang Wang wrote: > Indeed I'm not sure this patch is necessary, robust applications > should not call io_uring_submit when there are not sqes to submmit. > But still try to add this check, I have seen some applications which > call io_uring_submit(), but there are not sqes to submit. Hmm, not sure it's worth complicating the submit path for that case. A high performant application should not call io_uring_submit() if it didn't queue anything new. Is this a common case you've seen? -- Jens Axboe
