[PATCH] writeback: use setup_deferrable_timer

[Geliang Tang <geliangtang@gmail.com>]

Use setup_deferrable_timer() instead of init_timer_deferrable() to
simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
---
 mm/page-writeback.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 26a6081..9e7d576 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -649,9 +649,8 @@ int wb_domain_init(struct wb_domain *dom, gfp_t gfp)
 
 	spin_lock_init(&dom->lock);
 
-	init_timer_deferrable(&dom->period_timer);
-	dom->period_timer.function = writeout_period;
-	dom->period_timer.data = (unsigned long)dom;
+	setup_deferrable_timer(&dom->period_timer, writeout_period,
+			       (unsigned long)dom);
 
 	dom->dirty_limit_tstamp = jiffies;
 
-- 
2.9.3