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3272cd887f
The first kfd_process is created through open(), this commit marks it as the primary kfd_process by assigning a primary id for its context_id. Only the primary process should register the mmu_notifier. Signed-off-by: Zhu Lingshan <lingshan.zhu@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>