On Thu, Nov 03, 2022 at 04:50:03PM +0800, Ming Lei wrote: > The 1st ->splice_read produces buffer to the pipe of > current->splice_pipe, and the 2nd ->splice_read consumes the buffer > in this pipe. This looks really ugly. I think you want Linus and Al to look over it at very least. Also, what is going to happen if your ->splice_read instance does not support the flag to magically do something entirely different?