3 files changed, 50 insertions, 13 deletions

diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
index 2d8b211b9324..6f52b4d7c447 100644
--- a/include/linux/sunrpc/cache.h
+++ b/include/linux/sunrpc/cache.h
@@ -59,6 +59,15 @@ struct cache_head {
 
 #define	CACHE_NEW_EXPIRY 120	/* keep new things pending confirmation for 120 seconds */
 
+struct cache_detail_procfs {
+	struct proc_dir_entry	*proc_ent;
+	struct proc_dir_entry   *flush_ent, *channel_ent, *content_ent;
+};
+
+struct cache_detail_pipefs {
+	struct dentry *dir;
+};
+
 struct cache_detail {
 	struct module *		owner;
 	int			hash_size;
@@ -70,15 +79,17 @@ struct cache_detail {
 	char			*name;
 	void			(*cache_put)(struct kref *);
 
-	void			(*cache_request)(struct cache_detail *cd,
-						 struct cache_head *h,
-						 char **bpp, int *blen);
+	int			(*cache_upcall)(struct cache_detail *,
+						struct cache_head *);
+
 	int			(*cache_parse)(struct cache_detail *,
 					       char *buf, int len);
 
 	int			(*cache_show)(struct seq_file *m,
 					      struct cache_detail *cd,
 					      struct cache_head *h);
+	void			(*warn_no_listener)(struct cache_detail *cd,
+					      int has_died);
 
 	struct cache_head *	(*alloc)(void);
 	int			(*match)(struct cache_head *orig, struct cache_head *new);
@@ -96,13 +107,15 @@ struct cache_detail {
 
 	/* fields for communication over channel */
 	struct list_head	queue;
-	struct proc_dir_entry	*proc_ent;
-	struct proc_dir_entry   *flush_ent, *channel_ent, *content_ent;
 
 	atomic_t		readers;		/* how many time is /chennel open */
 	time_t			last_close;		/* if no readers, when did last close */
 	time_t			last_warn;		/* when we last warned about no readers */
-	void			(*warn_no_listener)(struct cache_detail *cd);
+
+	union {
+		struct cache_detail_procfs procfs;
+		struct cache_detail_pipefs pipefs;
+	} u;
 };
 
 
@@ -127,6 +140,10 @@ struct cache_deferred_req {
 };
 
 
+extern const struct file_operations cache_file_operations_pipefs;
+extern const struct file_operations content_file_operations_pipefs;
+extern const struct file_operations cache_flush_operations_pipefs;
+
 extern struct cache_head *
 sunrpc_cache_lookup(struct cache_detail *detail,
 		    struct cache_head *key, int hash);
@@ -134,6 +151,13 @@ extern struct cache_head *
 sunrpc_cache_update(struct cache_detail *detail,
 		    struct cache_head *new, struct cache_head *old, int hash);
 
+extern int
+sunrpc_cache_pipe_upcall(struct cache_detail *detail, struct cache_head *h,
+		void (*cache_request)(struct cache_detail *,
+				      struct cache_head *,
+				      char **,
+				      int *));
+
 
 extern void cache_clean_deferred(void *owner);
 
@@ -171,6 +195,10 @@ extern void cache_purge(struct cache_detail *detail);
 extern int cache_register(struct cache_detail *cd);
 extern void cache_unregister(struct cache_detail *cd);
 
+extern int sunrpc_cache_register_pipefs(struct dentry *parent, const char *,
+					mode_t, struct cache_detail *);
+extern void sunrpc_cache_unregister_pipefs(struct cache_detail *);
+
 extern void qword_add(char **bpp, int *lp, char *str);
 extern void qword_addhex(char **bpp, int *lp, char *buf, int blen);
 extern int qword_get(char **bpp, char *dest, int bufsize);
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 2636e8ad551c..ab3f6e90caa5 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -21,6 +21,7 @@
 #include <linux/sunrpc/xdr.h>
 #include <linux/sunrpc/timer.h>
 #include <asm/signal.h>
+#include <linux/path.h>
 
 struct rpc_inode;
 
@@ -54,9 +55,7 @@ struct rpc_clnt {
 
 	int			cl_nodelen;	/* nodename length */
 	char 			cl_nodename[UNX_MAXNODENAME];
-	char			cl_pathname[30];/* Path in rpc_pipe_fs */
-	struct vfsmount *	cl_vfsmnt;
-	struct dentry *		cl_dentry;	/* inode */
+	struct path		cl_path;
 	struct rpc_clnt *	cl_parent;	/* Points to parent of clones */
 	struct rpc_rtt		cl_rtt_default;
 	struct rpc_timeout	cl_timeout_default;
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index cea764c2359f..a92571a34556 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -32,8 +32,8 @@ struct rpc_inode {
 	wait_queue_head_t waitq;
 #define RPC_PIPE_WAIT_FOR_OPEN	1
 	int flags;
-	struct rpc_pipe_ops *ops;
 	struct delayed_work queue_timeout;
+	const struct rpc_pipe_ops *ops;
 };
 
 static inline struct rpc_inode *
@@ -44,9 +44,19 @@ RPC_I(struct inode *inode)
 
 extern int rpc_queue_upcall(struct inode *, struct rpc_pipe_msg *);
 
-extern struct dentry *rpc_mkdir(char *, struct rpc_clnt *);
-extern int rpc_rmdir(struct dentry *);
-extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *, struct rpc_pipe_ops *, int flags);
+struct rpc_clnt;
+extern struct dentry *rpc_create_client_dir(struct dentry *, struct qstr *, struct rpc_clnt *);
+extern int rpc_remove_client_dir(struct dentry *);
+
+struct cache_detail;
+extern struct dentry *rpc_create_cache_dir(struct dentry *,
+					   struct qstr *,
+					   mode_t umode,
+					   struct cache_detail *);
+extern void rpc_remove_cache_dir(struct dentry *);
+
+extern struct dentry *rpc_mkpipe(struct dentry *, const char *, void *,
+				 const struct rpc_pipe_ops *, int flags);
 extern int rpc_unlink(struct dentry *);
 extern struct vfsmount *rpc_get_mount(void);
 extern void rpc_put_mount(void);