1 files changed, 62 insertions, 9 deletions

diff --git a/net/9p/mod.c b/net/9p/mod.c
index 4f9e1d2ac25..41d70f47375 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -27,6 +27,10 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <net/9p/9p.h>
+#include <linux/fs.h>
+#include <linux/parser.h>
+#include <net/9p/transport.h>
+#include <linux/list.h>
 
 #ifdef CONFIG_NET_9P_DEBUG
 unsigned int p9_debug_level = 0;	/* feature-rific global debug level  */
@@ -37,8 +41,64 @@ MODULE_PARM_DESC(debug, "9P debugging level");
 
 extern int p9_mux_global_init(void);
 extern void p9_mux_global_exit(void);
-extern int p9_sysctl_register(void);
-extern void p9_sysctl_unregister(void);
+
+/*
+ * Dynamic Transport Registration Routines
+ *
+ */
+
+static LIST_HEAD(v9fs_trans_list);
+static struct p9_trans_module *v9fs_default_transport;
+
+/**
+ * v9fs_register_trans - register a new transport with 9p
+ * @m - structure describing the transport module and entry points
+ *
+ */
+void v9fs_register_trans(struct p9_trans_module *m)
+{
+	list_add_tail(&m->list, &v9fs_trans_list);
+	if (m->def)
+		v9fs_default_transport = m;
+}
+EXPORT_SYMBOL(v9fs_register_trans);
+
+/**
+ * v9fs_match_trans - match transport versus registered transports
+ * @arg: string identifying transport
+ *
+ */
+struct p9_trans_module *v9fs_match_trans(const substring_t *name)
+{
+	struct list_head *p;
+	struct p9_trans_module *t = NULL;
+
+	list_for_each(p, &v9fs_trans_list) {
+		t = list_entry(p, struct p9_trans_module, list);
+		if (strncmp(t->name, name->from, name->to-name->from) == 0)
+			break;
+	}
+	return t;
+}
+EXPORT_SYMBOL(v9fs_match_trans);
+
+/**
+ * v9fs_default_trans - returns pointer to default transport
+ *
+ */
+
+struct p9_trans_module *v9fs_default_trans(void)
+{
+	if (v9fs_default_transport)
+		return v9fs_default_transport;
+	else if (!list_empty(&v9fs_trans_list))
+		return list_first_entry(&v9fs_trans_list,
+					struct p9_trans_module, list);
+	else
+		return NULL;
+}
+EXPORT_SYMBOL(v9fs_default_trans);
+
 
 /**
  * v9fs_init - Initialize module
@@ -56,12 +116,6 @@ static int __init init_p9(void)
 		return ret;
 	}
 
-	ret = p9_sysctl_register();
-	if (ret) {
-		printk(KERN_WARNING "9p: registering sysctl failed\n");
-		return ret;
-	}
-
 	return ret;
 }
 
@@ -72,7 +126,6 @@ static int __init init_p9(void)
 
 static void __exit exit_p9(void)
 {
-	p9_sysctl_unregister();
 	p9_mux_global_exit();
 }