loff_t start;
loff_t end;
- unsigned nonblocking:1; /* Don't get stuck on request queues */
- unsigned encountered_congestion:1; /* An output: a queue is full */
- unsigned for_kupdate:1; /* A kupdate writeback */
- unsigned for_reclaim:1; /* Invoked from the page allocator */
+ unsigned nonblocking:1; /* Don't get stuck on request queues */
+ unsigned encountered_congestion:1; /* An output: a queue is full */
+ unsigned for_kupdate:1; /* A kupdate writeback */
+ unsigned for_reclaim:1; /* Invoked from the page allocator */
+ unsigned for_writepages:1; /* This is a writepages() call */
};
-/*
- * ->writepage() return values (make these much larger than a pagesize, in
- * case some fs is returning number-of-bytes-written from writepage)
- */
-#define WRITEPAGE_ACTIVATE 0x80000 /* IO was not started: activate page */
-
/*
* fs/fs-writeback.c
*/
/* These are exported to sysctl. */
extern int dirty_background_ratio;
extern int vm_dirty_ratio;
-extern int dirty_writeback_centisecs;
-extern int dirty_expire_centisecs;
+extern int dirty_writeback_interval;
+extern int dirty_expire_interval;
extern int block_dump;
extern int laptop_mode;
int pdflush_operation(void (*fn)(unsigned long), unsigned long arg0);
int do_writepages(struct address_space *mapping, struct writeback_control *wbc);
int sync_page_range(struct inode *inode, struct address_space *mapping,
- loff_t pos, size_t count);
+ loff_t pos, loff_t count);
+int sync_page_range_nolock(struct inode *inode, struct address_space *mapping,
+ loff_t pos, loff_t count);
/* pdflush.c */
extern int nr_pdflush_threads; /* Global so it can be exported to sysctl