The first patch introduces pin_user_pages_fd() API and the second
patch shows how the udmabuf driver can use it to longterm-pin the
the pages. The last patch adds two new udmabuf selftests to verify
data coherency after page migration.
Cc: David Hildenbrand <da...@redhat.com>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Mike Kravetz <mike.krav...@oracle.com>
Cc: Hugh Dickins <hu...@google.com>
Cc: Peter Xu <pet...@redhat.com>
Cc: Jason Gunthorpe <j...@nvidia.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Cc: Dongwon Kim <dongwon....@intel.com>
Cc: Junxiao Chang <junxiao.ch...@intel.com>
Vivek Kasireddy (3):
mm/gup: Introduce pin_user_pages_fd() for pinning shmem/hugetlbfs file
pages
udmabuf: Pin the pages using pin_user_pages_fd() API
selftests/dma-buf/udmabuf: Add tests to verify data after page
migration
drivers/dma-buf/udmabuf.c | 82 +++++++---
include/linux/mm.h | 2 +
mm/gup.c | 87 ++++++++++
.../selftests/drivers/dma-buf/udmabuf.c | 151 +++++++++++++++++-
4 files changed, 297 insertions(+), 25 deletions(-)
--
2.39.2
