[PATCH v1 0/3] mm/gup: Introduce pin_user_pages_fd() for pinning shmem/hugetlbfs file pages

[Vivek Kasireddy <vivek.kasireddy@intel.com>]

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 <david@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Dongwon Kim <dongwon.kim@intel.com>
Cc: Junxiao Chang <junxiao.chang@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