1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
new file mode 100644
index 000000000000..63929349571f
--- /dev/null
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -0,0 +1,50 @@
+#ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H
+#define _LINUX_SUNRPC_RPC_PIPE_FS_H
+
+#ifdef __KERNEL__
+
+struct rpc_pipe_msg {
+	struct list_head list;
+	void *data;
+	size_t len;
+	size_t copied;
+	int errno;
+};
+
+struct rpc_pipe_ops {
+	ssize_t (*upcall)(struct file *, struct rpc_pipe_msg *, char __user *, size_t);
+	ssize_t (*downcall)(struct file *, const char __user *, size_t);
+	void (*release_pipe)(struct inode *);
+	void (*destroy_msg)(struct rpc_pipe_msg *);
+};
+
+struct rpc_inode {
+	struct inode vfs_inode;
+	void *private;
+	struct list_head pipe;
+	struct list_head in_upcall;
+	int pipelen;
+	int nreaders;
+	int nwriters;
+	wait_queue_head_t waitq;
+#define RPC_PIPE_WAIT_FOR_OPEN	1
+	int flags;
+	struct rpc_pipe_ops *ops;
+	struct work_struct queue_timeout;
+};
+
+static inline struct rpc_inode *
+RPC_I(struct inode *inode)
+{
+	return container_of(inode, struct rpc_inode, vfs_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(char *);
+extern struct dentry *rpc_mkpipe(char *, void *, struct rpc_pipe_ops *, int flags);
+extern int rpc_unlink(char *);
+
+#endif
+#endif