[linux-2.6-block.git] / net / xfrm / xfrm_hash.c

// SPDX-License-Identifier: GPL-2.0
/* 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/memblock.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 = vzalloc(sz);
	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));
}
Commit	Line	Data
b2441318	1	// SPDX-License-Identifier: GPL-2.0
44e36b42 DM	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>
57c8a661	9	#include <linux/memblock.h>
44e36b42 DM	10	#include <linux/vmalloc.h>
	11	#include <linux/slab.h>
	12	#include <linux/xfrm.h>
	13
	14	#include "xfrm_hash.h"
	15
	16	struct hlist_head *xfrm_hash_alloc(unsigned int sz)
	17	{
	18	struct hlist_head *n;
	19
	20	if (sz <= PAGE_SIZE)
dcaee95a	21	n = kzalloc(sz, GFP_KERNEL);
44e36b42	22	else if (hashdist)
7a1c8e5a	23	n = vzalloc(sz);
44e36b42 DM	24	else
44e36b42 DM	25	n = (struct hlist_head *)
dcaee95a	26	__get_free_pages(GFP_KERNEL \| __GFP_NOWARN \| __GFP_ZERO,
6253db05	27	get_order(sz));
44e36b42	28
44e36b42 DM	29	return n;
	30	}
	31
	32	void 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	}