fuse: add members to struct fuse_file

Add new members ->fc and ->nodeid to struct fuse_file.  This will aid
in converting functions for use by CUSE, where the inode is not owned
by a fuse filesystem.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>

fs/fuse/file.c

@@ -54,6 +54,7 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
 	if (unlikely(!ff))
 		return NULL;
 
+	ff->fc = fc;
 	ff->reserved_req = fuse_request_alloc();
 	if (unlikely(!ff->reserved_req)) {
 		kfree(ff);
@@ -111,6 +112,7 @@ void fuse_finish_open(struct inode *inode, struct file *file,
 	if (outarg->open_flags & FOPEN_NONSEEKABLE)
 		nonseekable_open(inode, file);
 	ff->fh = outarg->fh;
+	ff->nodeid = get_node_id(inode);
 	file->private_data = fuse_file_get(ff);
 }
 

fs/fuse/fuse_i.h

@@ -97,8 +97,13 @@ struct fuse_inode {
 	struct list_head writepages;
 };
 
+struct fuse_conn;
+
 /** FUSE specific file data */
 struct fuse_file {
+	/** Fuse connection for this file */
+	struct fuse_conn *fc;
+
 	/** Request reserved for flush and release */
 	struct fuse_req *reserved_req;
 
@@ -108,6 +113,9 @@ struct fuse_file {
 	/** File handle used by userspace */
 	u64 fh;
 
+	/** Node id of this file */
+	u64 nodeid;
+
 	/** Refcount */
 	atomic_t count;
 
@@ -185,8 +193,6 @@ enum fuse_req_state {
 	FUSE_REQ_FINISHED
 };
 
-struct fuse_conn;
-
 /**
  * A request to the client
  */