/* 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 = kzalloc(sz, GFP_KERNEL); | |
else if (hashdist) | |
n = __vmalloc(sz, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL); | |
else | |
n = (struct hlist_head *) | |
__get_free_pages(GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO, | |
get_order(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)); | |
} |