-extern int nfs_scan_lock_dirty(struct nfs_inode *nfsi, struct list_head *dst,
- unsigned long idx_start, unsigned int npages);
-extern int nfs_scan_list(struct list_head *, struct list_head *,
- unsigned long, unsigned int);
-extern int nfs_coalesce_requests(struct list_head *, struct list_head *,
- unsigned int);
+extern long nfs_scan_dirty(struct address_space *mapping,
+ struct writeback_control *wbc,
+ struct list_head *dst);
+extern int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *head, struct list_head *dst,
+ unsigned long idx_start, unsigned int npages);
+extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
+ struct inode *inode,
+ int (*doio)(struct inode *, struct list_head *, size_t, int),
+ size_t bsize,
+ int how);
+extern void nfs_pageio_add_list(struct nfs_pageio_descriptor *,
+ struct list_head *);
+extern void nfs_pageio_complete(struct nfs_pageio_descriptor *desc);