This patch series adds support for CRIU checkpointing of processes that share memory with the amdgpu dmabuf interface.
In this v3, the drm interfaces have been changed from creating buffer objects with specified gem handles to changign the gem handle of an existing buffer object. In the accompanying CRIU patch set, the sockets used by CRIU to exchange dmabuf fds between restoring processes have been refactored to be created within the amdgpu plugin itself.
