[PATCH 18/47] writeback: move BDI_WRITTEN accounting into __bdi_writeout_inc()

[Wu Fengguang]

This will cover and fix fuse, which only calls bdi_writeout_inc(). -Peter

CC: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Signed-off-by: Wu Fengguang <fengguang.wu@xxxxxxxxx>
---
 mm/page-writeback.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next.orig/mm/page-writeback.c	2010-12-08 22:44:27.000000000 +0800
+++ linux-next/mm/page-writeback.c	2010-12-08 22:44:27.000000000 +0800
@@ -199,6 +199,7 @@ int dirty_bytes_handler(struct ctl_table
  */
 static inline void __bdi_writeout_inc(struct backing_dev_info *bdi)
 {
+	__inc_bdi_stat(bdi, BDI_WRITTEN);
 	__prop_inc_percpu_max(&vm_completions, &bdi->completions,
 			      bdi->max_prop_frac);
 }
@@ -1411,7 +1412,6 @@ int test_clear_page_writeback(struct pag
 						PAGECACHE_TAG_WRITEBACK);
 			if (bdi_cap_account_writeback(bdi)) {
 				__dec_bdi_stat(bdi, BDI_WRITEBACK);
-				__inc_bdi_stat(bdi, BDI_WRITTEN);
 				__bdi_writeout_inc(bdi);
 			}
 		}


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