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// 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));
}
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