#include <linux/types.h>#include <linux/init.h>#include <linux/slab.h>#include <linux/bootmem.h>#include <linux/string.h>#include <asm/setup.h>  void * __init_refok zalloc_maybe_bootmem(size_t size, gfp_t mask){	void *p; 	if (mem_init_done)		p = kzalloc(size, mask);	else {		p = alloc_bootmem(size);		if (p)			memset(p, 0, size);	}	return p;}