mm/page-writeback.c: use setup_deferrable_timer

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

Link: http://lkml.kernel.org/r/e8e3d4280a34facbc007346f31df833cec28801e.1488070291.git.geliangtang@gmail.com
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index d8ac2a7fb9e7b6db9de3755ab7898095f70f8383..33df0583edb935896ef8eb1be88536e6820f3dfd 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -650,9 +650,8 @@ 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;