On Wed, Sep 05, 2018 at 03:03:18PM -0600, Logan Gunthorpe wrote: > There is no special p2p submission process. In the nvme-of case we are > using the existing process and with the code in blk-core it didn't > change it's process at all. Creating a helper will create one and I can > look at making a pci_p2pdma_submit_bio() for v6; but if the developer > screws up and still calls the regular submit_bio() things will only be > very subtly broken and that won't be obvious. I thought about that when reviewing the previous series, and even started hacking it up. In the end I decided against it for the above reason - it just adds code, but doesn't actually help with anything as it is trivial to forget, and not using it will in fact just work.
