[PATCH 01/16] drm/vma: add access management helpers

2013-08-13 Thread David Herrmann
The VMA offset manager uses a device-global address-space. Hence, any user can currently map any offset-node they want. They only need to guess the right offset. If we wanted per open-file offset spaces, we'd either need VM_NONLINEAR mappings or multiple "struct address_space" trees. As both doesn'

[PATCH 01/16] drm/vma: add access management helpers

2013-08-13 Thread David Herrmann
The VMA offset manager uses a device-global address-space. Hence, any user can currently map any offset-node they want. They only need to guess the right offset. If we wanted per open-file offset spaces, we'd either need VM_NONLINEAR mappings or multiple "struct address_space" trees. As both doesn'