Jisheng Zhang wrote on Tue, Mar 02, 2021 at 03:39:40PM +0800: > > Rather than make an exception for 0, how about just removing the if as > > follow ? > > IMHO, we may need to keep the "if" in current logic. When count > reaches zero, we need to break the "while(iov_iter_count(to))" loop, so > removing > the "if" modifying the logic.
We're not looking at the same loop, the break will happen properly without the if because it's the return value of p9_client_read_once() now. In the old code I remember what you're saying and it makes sense, I guess that was the reason for the special case. It's not longer required, let's remove it. -- Dominique