X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Flinux%2Fwriteback.h;h=9e38b566d0e77325d50fb9bfd52b28898c753349;hb=b3c681e09193559ba15f6c9562bd37045f120a96;hp=beaef5c7a0eacaadfb0d2f590dbf75c498f81eb0;hpb=0a0fc0ddbe732779366ab6b1b879f62195e65967;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index beaef5c7a0e..9e38b566d0e 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -50,14 +50,15 @@ struct writeback_control {
 	 * a hint that the filesystem need only write out the pages inside that
 	 * byterange.  The byte at `end' is included in the writeout request.
 	 */
-	loff_t start;
-	loff_t end;
+	loff_t range_start;
+	loff_t range_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 for_writepages:1;	/* This is a writepages() call */
+	unsigned range_cyclic:1;	/* range_start is cyclic */
 };
 
 /*
@@ -88,8 +89,8 @@ void throttle_vm_writeout(void);
 /* 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;
 
@@ -99,7 +100,15 @@ int dirty_writeback_centisecs_handler(struct ctl_table *, int, struct file *,
 				      void __user *, size_t *, loff_t *);
 
 void page_writeback_init(void);
-void balance_dirty_pages_ratelimited(struct address_space *mapping);
+void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
+					unsigned long nr_pages_dirtied);
+
+static inline void
+balance_dirty_pages_ratelimited(struct address_space *mapping)
+{
+	balance_dirty_pages_ratelimited_nr(mapping, 1);
+}
+
 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,