drm_vma_offset_lock_lookup — Lock lookup for extended private use
void drm_vma_offset_lock_lookup ( | struct drm_vma_offset_manager * mgr); |
Lock VMA manager for extended lookups. Only locked VMA function calls
are allowed while holding this lock. All other contexts are blocked from VMA
until the lock is released via drm_vma_offset_unlock_lookup.
Use this if you need to take a reference to the objects returned by
drm_vma_offset_lookup_locked before releasing this lock again.
This lock must not be used for anything else than extended lookups. You must not call any other VMA helpers while holding this lock.