/* xfrm_hash.c: Common hash table code. * * Copyright (C) 2006 David S. Miller (davem@davemloft.net) */#include <linux/kernel.h>#include <linux/mm.h>#include <linux/bootmem.h>#include <linux/vmalloc.h>#include <linux/slab.h>#include <linux/xfrm.h>#include "xfrm_hash.h"struct hlist_head *xfrm_hash_alloc(unsigned int sz){	struct hlist_head *n;	if (sz <= PAGE_SIZE)		n = kmalloc(sz, GFP_KERNEL);	else if (hashdist)		n = __vmalloc(sz, GFP_KERNEL, PAGE_KERNEL);	else		n = (struct hlist_head *)			__get_free_pages(GFP_KERNEL | __GFP_NOWARN,					 get_order(sz));	if (n)		memset(n, 0, sz);	return n;}void xfrm_hash_free(struct hlist_head *n, unsigned int sz){	if (sz <= PAGE_SIZE)		kfree(n);	else if (hashdist)		vfree(n);	else		free_pages((unsigned long)n, get_order(sz));}