On 06/07/23 14:00, Andrew Morton wrote: > On Wed, 7 Jun 2023 13:53:10 -0700 Mike Kravetz <mike.kravetz@xxxxxxxxxx> wrote: > > > > > > > BUGs aren't good. Can we please find a way to push this along? > > > > > > Have we heard anything from any udmabuf people? > > > > > > > I have not heard anything. When this issue popped up, it took me by surprise. > > > > udmabuf maintainer (Gerd Hoffmann), the people who added hugetlb support and > > the list where udmabuf was developed (dri-devel@xxxxxxxxxxxxxxxxxxxxx) have > > been on cc. > > Maybe Greg can suggest a way forward. > > > My 'gut reaction' would be to remove hugetlb support from udmabuf. From a > > quick look, if we really want this support then there will need to be some > > API changes. For example UDMABUF_CREATE should be hugetlb page aligned > > and a multiple of hugetlb page size if using a hugetlb mapping. > > > > It would be good to know about users of the driver. > > So disabling "hugetlb=on" (and adding an explanatory printk) would > suffice for now? I can put together a patch to do that. -- Mike Kravetz
