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Date:   Sun, 26 Feb 2017 08:58:22 +0800
From:   Geliang Tang <geliangtang@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Michal Hocko <mhocko@...e.com>, Jens Axboe <axboe@...com>
Cc:     Geliang Tang <geliangtang@...il.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] writeback: use setup_deferrable_timer

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

Signed-off-by: Geliang Tang <geliangtang@...il.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

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