pcpu_page_first_chunk
rc = pcpu_page_first_chunk(PERCPU_MODULE_RESERVE, pcpu_cpu_to_node);
rc = pcpu_page_first_chunk(0, pcpu_cpu_to_node);
rc = pcpu_page_first_chunk(PERCPU_MODULE_RESERVE,
rc = pcpu_page_first_chunk(PERCPU_FIRST_CHUNK_RESERVE,
rc = pcpu_page_first_chunk(PERCPU_MODULE_RESERVE, early_cpu_to_node);
extern int __init pcpu_page_first_chunk(size_t reserved_size,