extern int nfs_writepages(struct address_space *, struct writeback_control *);
extern int nfs_flush_incompatible(struct file *file, struct page *page);
extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int);
-extern void nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
/*
* Try to write back everything synchronously (but check the
extern int nfs_readpage(struct file *, struct page *);
extern int nfs_readpages(struct file *, struct address_space *,
struct list_head *, unsigned);
-extern int nfs_readpage_result(struct rpc_task *, struct nfs_read_data *);
extern int nfs_readpage_async(struct nfs_open_context *, struct inode *,
struct page *);