1// SPDX-License-Identifier: GPL-2.0
 2/* xfrm_hash.c: Common hash table code.
 3 *
 4 * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
 5 */
 6
 7#include <linux/kernel.h>
 8#include <linux/mm.h>
 9#include <linux/memblock.h>
10#include <linux/vmalloc.h>
11#include <linux/slab.h>
12#include <linux/xfrm.h>
13
14#include "xfrm_hash.h"
15
16struct hlist_head *xfrm_hash_alloc(unsigned int sz)
17{
18	struct hlist_head *n;
19
20	if (sz <= PAGE_SIZE)
21		n = kzalloc(sz, GFP_KERNEL);
22	else if (hashdist)
23		n = vzalloc(sz);
24	else
25		n = (struct hlist_head *)
26			__get_free_pages(GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO,
27					 get_order(sz));
28
29	return n;
30}
31
32void xfrm_hash_free(struct hlist_head *n, unsigned int sz)
33{
34	if (sz <= PAGE_SIZE)
35		kfree(n);
36	else if (hashdist)
37		vfree(n);
38	else
39		free_pages((unsigned long)n, get_order(sz));
40}

 
 1/* xfrm_hash.c: Common hash table code.
 2 *
 3 * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
 4 */
 5
 6#include <linux/kernel.h>
 7#include <linux/mm.h>
 8#include <linux/bootmem.h>
 9#include <linux/vmalloc.h>
10#include <linux/slab.h>
11#include <linux/xfrm.h>
12
13#include "xfrm_hash.h"
14
15struct hlist_head *xfrm_hash_alloc(unsigned int sz)
16{
17	struct hlist_head *n;
18
19	if (sz <= PAGE_SIZE)
20		n = kzalloc(sz, GFP_KERNEL);
21	else if (hashdist)
22		n = vzalloc(sz);
23	else
24		n = (struct hlist_head *)
25			__get_free_pages(GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO,
26					 get_order(sz));
27
28	return n;
29}
30
31void xfrm_hash_free(struct hlist_head *n, unsigned int sz)
32{
33	if (sz <= PAGE_SIZE)
34		kfree(n);
35	else if (hashdist)
36		vfree(n);
37	else
38		free_pages((unsigned long)n, get_order(sz));
39}