Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/rxrpc/peer.h b/include/rxrpc/peer.h
new file mode 100644
index 0000000..8b8fe97
--- /dev/null
+++ b/include/rxrpc/peer.h
@@ -0,0 +1,82 @@
+/* peer.h: Rx RPC per-transport peer record
+ *
+ * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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.
+ */
+
+#ifndef _LINUX_RXRPC_PEER_H
+#define _LINUX_RXRPC_PEER_H
+
+#include <linux/wait.h>
+#include <rxrpc/types.h>
+#include <rxrpc/krxtimod.h>
+
+struct rxrpc_peer_ops
+{
+ /* peer record being added */
+ int (*adding)(struct rxrpc_peer *peer);
+
+ /* peer record being discarded from graveyard */
+ void (*discarding)(struct rxrpc_peer *peer);
+
+ /* change of epoch detected on connection */
+ void (*change_of_epoch)(struct rxrpc_connection *conn);
+};
+
+/*****************************************************************************/
+/*
+ * Rx RPC per-transport peer record
+ * - peers only retain a refcount on the transport when they are active
+ * - peers with refcount==0 are inactive and reside in the transport's graveyard
+ */
+struct rxrpc_peer
+{
+ atomic_t usage;
+ struct rxrpc_peer_ops *ops; /* operations on this peer */
+ struct rxrpc_transport *trans; /* owner transport */
+ struct rxrpc_timer timeout; /* timeout for grave destruction */
+ struct list_head link; /* link in transport's peer list */
+ struct list_head proc_link; /* link in /proc list */
+ rwlock_t conn_idlock; /* lock for connection IDs */
+ struct list_head conn_idlist; /* list of connections granted IDs */
+ uint32_t conn_idcounter; /* connection ID counter */
+ rwlock_t conn_lock; /* lock for active/dead connections */
+ struct list_head conn_active; /* active connections to/from this peer */
+ struct list_head conn_graveyard; /* graveyard for inactive connections */
+ spinlock_t conn_gylock; /* lock for conn_graveyard */
+ wait_queue_head_t conn_gy_waitq; /* wait queue hit when graveyard is empty */
+ atomic_t conn_count; /* number of attached connections */
+ struct in_addr addr; /* remote address */
+ size_t if_mtu; /* interface MTU for this peer */
+ spinlock_t lock; /* access lock */
+
+ void *user; /* application layer data */
+
+ /* calculated RTT cache */
+#define RXRPC_RTT_CACHE_SIZE 32
+ suseconds_t rtt; /* current RTT estimate (in uS) */
+ unsigned rtt_point; /* next entry at which to insert */
+ unsigned rtt_usage; /* amount of cache actually used */
+ suseconds_t rtt_cache[RXRPC_RTT_CACHE_SIZE]; /* calculated RTT cache */
+};
+
+
+extern int rxrpc_peer_lookup(struct rxrpc_transport *trans,
+ __be32 addr,
+ struct rxrpc_peer **_peer);
+
+static inline void rxrpc_get_peer(struct rxrpc_peer *peer)
+{
+ BUG_ON(atomic_read(&peer->usage)<0);
+ atomic_inc(&peer->usage);
+ //printk("rxrpc_get_peer(%p{u=%d})\n",peer,atomic_read(&peer->usage));
+}
+
+extern void rxrpc_put_peer(struct rxrpc_peer *peer);
+
+#endif /* _LINUX_RXRPC_PEER_H */