[PATCH] mm: remove wb_writeout_inc

[Christoph Hellwig <hch@lst.de>]

Remove this entirely unused but exported function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/backing-dev.h |  2 --
 mm/page-writeback.c         | 10 ----------
 2 files changed, 12 deletions(-)

diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 5b7d12b40d5e..c2284466e7aa 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -76,8 +76,6 @@ static inline s64 wb_stat_sum(struct bdi_writeback *wb, enum wb_stat_item item)
 	return percpu_counter_sum_positive(&wb->stat[item]);
 }
 
-extern void wb_writeout_inc(struct bdi_writeback *wb);
-
 /*
  * maximal error of a stat counter.
  */
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index e98748112d1e..47495be68598 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -584,16 +584,6 @@ static inline void __wb_writeout_add(struct bdi_writeback *wb, long nr)
 				       wb->bdi->max_prop_frac, nr);
 }
 
-void wb_writeout_inc(struct bdi_writeback *wb)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	__wb_writeout_add(wb, 1);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(wb_writeout_inc);
-
 /*
  * On idle system, we can be called long after we scheduled because we use
  * deferred timers so count with missed periods.
-- 
2.53.0