struct file_ra_state;
struct user_struct;
struct writeback_control;
-struct bdi_writeback;
struct pt_regs;
extern int sysctl_page_lock_unfairness;
int redirty_page_for_writepage(struct writeback_control *wbc,
struct page *page);
-void account_page_cleaned(struct page *page, struct address_space *mapping,
- struct bdi_writeback *wb);
bool folio_mark_dirty(struct folio *folio);
bool set_page_dirty(struct page *page);
int set_page_dirty_lock(struct page *page);