struct backing_dev_info;
extern spinlock_t inode_lock;
-extern struct list_head inode_in_use;
-extern struct list_head inode_unused;
/*
* fs/fs-writeback.c
int generic_writepages(struct address_space *mapping,
struct writeback_control *wbc);
+void tag_pages_for_writeback(struct address_space *mapping,
+ pgoff_t start, pgoff_t end);
int write_cache_pages(struct address_space *mapping,
struct writeback_control *wbc, writepage_t writepage,
void *data);