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-rw-r--r--include/linux/backing-dev-defs.h1
-rw-r--r--include/linux/writeback.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index 06fb8e13f6bc..33207004cfde 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -143,6 +143,7 @@ struct bdi_writeback {
spinlock_t work_lock; /* protects work_list & dwork scheduling */
struct list_head work_list;
struct delayed_work dwork; /* work item used for writeback */
+ struct delayed_work bw_dwork; /* work item used for bandwidth estimate */
unsigned long dirty_sleep; /* last wait */
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 2480322c06a7..cbaef099645e 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -379,6 +379,7 @@ int dirty_writeback_centisecs_handler(struct ctl_table *table, int write,
void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty);
unsigned long wb_calc_thresh(struct bdi_writeback *wb, unsigned long thresh);
+void wb_update_bandwidth(struct bdi_writeback *wb);
void balance_dirty_pages_ratelimited(struct address_space *mapping);
bool wb_over_bg_thresh(struct bdi_writeback *wb);