Function cpp_vm_object_get_page 

pub unsafe extern "C" fn cpp_vm_object_get_page(
    vmo: *mut VmObject,
    offset: u64,
    pf_flags: u32,
    page_request: *mut MultiPageRequest,
    out_page: *mut *mut vm_page_t,
    out_pa: *mut paddr_t,
) -> zx_status_t