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authorArnaldo Carvalho de Melo <acme@ghostprotocols.net>2005-08-09 20:00:51 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-29 15:38:39 -0700
commit77d8bf9c6208eb535f05718168ffcc476be0ca8c (patch)
tree255d84f4f222161235d54f82793667cccc509229 /net/ipv4/inet_hashtables.c
parent0f7ff9274e72fd254fbd1ab117bbc1db6e7cdb34 (diff)
[INET]: Move the TCP hashtable functions/structs to inet_hashtables.[ch]
Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_hashtables.c')
-rw-r--r--net/ipv4/inet_hashtables.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
new file mode 100644
index 000000000000..343a890bd617
--- /dev/null
+++ b/net/ipv4/inet_hashtables.c
@@ -0,0 +1,51 @@
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Generic INET transport hashtables
+ *
+ * Authors: Lotsa people, from code originally in tcp
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/slab.h>
+
+#include <net/inet_hashtables.h>
+
+/*
+ * Allocate and initialize a new local port bind bucket.
+ * The bindhash mutex for snum's hash chain must be held here.
+ */
+struct inet_bind_bucket *inet_bind_bucket_create(kmem_cache_t *cachep,
+ struct inet_bind_hashbucket *head,
+ const unsigned short snum)
+{
+ struct inet_bind_bucket *tb = kmem_cache_alloc(cachep, SLAB_ATOMIC);
+
+ if (tb != NULL) {
+ tb->port = snum;
+ tb->fastreuse = 0;
+ INIT_HLIST_HEAD(&tb->owners);
+ hlist_add_head(&tb->node, &head->chain);
+ }
+ return tb;
+}
+
+EXPORT_SYMBOL(inet_bind_bucket_create);
+
+/*
+ * Caller must hold hashbucket lock for this tb with local BH disabled
+ */
+void inet_bind_bucket_destroy(kmem_cache_t *cachep, struct inet_bind_bucket *tb)
+{
+ if (hlist_empty(&tb->owners)) {
+ __hlist_del(&tb->node);
+ kmem_cache_free(cachep, tb);
+ }
+}