On Mon, 6 Nov 2023 at 10:57, 赵晨 <winters.zc@xxxxxxxxxxxx> wrote: > So, based on my understanding, resend is adequate, but flush can offer > more convenience. I would like to inquire about your preference > regarding the two APIs. Should I do some verification and remove the > flush API, and then resend this patchset? I think it would be best to make it easy for the server to flush all requests using the resend API and discard the flush API. One idea to make it easy to distinguish between normal and resent requests is to set the high bit of unique. Thanks, Miklos