In 15934a37,
field last_tick_seen is added to struct rq.
But it is unused now.
Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com>
Cc: Guillaume Chazarain <guichaz@yahoo.fr>
LKML-Reference: <4AE6A513.6010100@cn.fujitsu.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>