mm: try to distribute dirty pages fairly across zones

[deliverable/linux.git] / include / linux / writeback.h

diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index a378c295851f8cf9fe4d804080b30f72cf5101cd..6dff47304971a510c1c4b6b389e9725591efc6e6 100644 (file)
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -124,6 +124,7 @@ void laptop_mode_timer_fn(unsigned long data);
 static inline void laptop_sync_completion(void) { }
 #endif
 void throttle_vm_writeout(gfp_t gfp_mask);
+bool zone_dirty_ok(struct zone *zone);
 
 extern unsigned long global_dirty_limit;
 
@@ -138,8 +139,6 @@ extern int vm_highmem_is_dirtyable;
 extern int block_dump;
 extern int laptop_mode;
 
-extern unsigned long determine_dirtyable_memory(void);
-
 extern int dirty_background_ratio_handler(struct ctl_table *table, int write,
                void __user *buffer, size_t *lenp,
                loff_t *ppos);