On Wed, Mar 13, 2024 at 09:46:36AM +0200, Leon Romanovsky wrote: > On Tue, Mar 12, 2024 at 10:28:44PM +0100, Christoph Hellwig wrote: > > On Sun, Mar 10, 2024 at 11:35:13AM +0200, Leon Romanovsky wrote: > > > And you will need to have a way to instruct that pin_user_pages() variant > > > to continue anyway, because you asked for FOLL_PCI_P2PDMA. Without that > > > force, you will have !FOLL_PCI_P2PDMA behaviour. > > > > I don't understand what you mean. > > Jason talked about the need to call to pin_user_pages(..., gup_flags | FOLL_PCI_P2PDMA, ...), > but in your proposal this call won't be possible anymore. Why?
