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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /net/xfrm/xfrm_hash.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/xfrm/xfrm_hash.c')
-rw-r--r--net/xfrm/xfrm_hash.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_hash.c b/net/xfrm/xfrm_hash.c
new file mode 100644
index 000000000..eca8d84d9
--- /dev/null
+++ b/net/xfrm/xfrm_hash.c
@@ -0,0 +1,40 @@
+// 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));
+}