nfsd: track last inode only in use_wgather case

[safe/jmp/linux-2.6] / include / net / 9p / transport.h

diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 7c68b3e..6d5886e 100644 (file)
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -4,7 +4,7 @@
  * Transport Definition
  *
  *  Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net>
- *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ *  Copyright (C) 2004-2008 by Eric Van Hensbergen <ericvh@gmail.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2
@@ -26,29 +26,38 @@
 #ifndef NET_9P_TRANSPORT_H
 #define NET_9P_TRANSPORT_H
 
-enum p9_trans_status {
-       Connected,
-       Disconnected,
-       Hung,
-};
-
-struct p9_trans {
-       enum p9_trans_status status;
-       void *priv;
-       int (*write) (struct p9_trans *, void *, int);
-       int (*read) (struct p9_trans *, void *, int);
-       void (*close) (struct p9_trans *);
-       unsigned int (*poll)(struct p9_trans *, struct poll_table_struct *);
-};
+/**
+ * struct p9_trans_module - transport module interface
+ * @list: used to maintain a list of currently available transports
+ * @name: the human-readable name of the transport
+ * @maxsize: transport provided maximum packet size
+ * @def: set if this transport should be considered the default
+ * @create: member function to create a new connection on this transport
+ * @request: member function to issue a request to the transport
+ * @cancel: member function to cancel a request (if it hasn't been sent)
+ *
+ * This is the basic API for a transport module which is registered by the
+ * transport module with the 9P core network module and used by the client
+ * to instantiate a new connection on a transport.
+ *
+ * BUGS: the transport module list isn't protected.
+ */
 
 struct p9_trans_module {
        struct list_head list;
        char *name;             /* name of transport */
        int maxsize;            /* max message size of transport */
        int def;                /* this transport should be default */
-       struct p9_trans * (*create)(const char *devname, char *options);
+       struct module *owner;
+       int (*create)(struct p9_client *, const char *, char *);
+       void (*close) (struct p9_client *);
+       int (*request) (struct p9_client *, struct p9_req_t *req);
+       int (*cancel) (struct p9_client *, struct p9_req_t *req);
 };
 
 void v9fs_register_trans(struct p9_trans_module *m);
-
+void v9fs_unregister_trans(struct p9_trans_module *m);
+struct p9_trans_module *v9fs_get_trans_by_name(const substring_t *name);
+struct p9_trans_module *v9fs_get_default_trans(void);
+void v9fs_put_trans(struct p9_trans_module *m);
 #endif /* NET_9P_TRANSPORT_H */