Hey Gerd, do you have any time to look at this series again, I think at v14 we should probably consider landing it. I'm happy to give Acked-by: Dave Airlie <airlied@xxxxxxxxxx> for landing this via mm if it makes the most sense. One comment in passing, was I wonder if it makes sense for things like vm_map_ram to have a folio variant in the future, to avoid that pages temporary allocation. Dave. > Cc: David Hildenbrand <david@xxxxxxxxxx> > Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> > Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> > Cc: Hugh Dickins <hughd@xxxxxxxxxx> > Cc: Peter Xu <peterx@xxxxxxxxxx> > Cc: Jason Gunthorpe <jgg@xxxxxxxxxx> > Cc: Gerd Hoffmann <kraxel@xxxxxxxxxx> > Cc: Dongwon Kim <dongwon.kim@xxxxxxxxx> > Cc: Junxiao Chang <junxiao.chang@xxxxxxxxx> > > Vivek Kasireddy (8): > mm/gup: Introduce unpin_folio/unpin_folios helpers > mm/gup: Introduce check_and_migrate_movable_folios() > mm/gup: Introduce memfd_pin_folios() for pinning memfd folios > udmabuf: Use vmf_insert_pfn and VM_PFNMAP for handling mmap > udmabuf: Add back support for mapping hugetlb pages > udmabuf: Convert udmabuf driver to use folios > udmabuf: Pin the pages using memfd_pin_folios() API > selftests/udmabuf: Add tests to verify data after page migration > > drivers/dma-buf/udmabuf.c | 231 +++++++++---- > include/linux/memfd.h | 5 + > include/linux/mm.h | 5 + > mm/gup.c | 307 +++++++++++++++--- > mm/memfd.c | 35 ++ > .../selftests/drivers/dma-buf/udmabuf.c | 214 ++++++++++-- > 6 files changed, 659 insertions(+), 138 deletions(-) > > -- > 2.43.0 >
