sched/deadline: Add rq->clock update skip for dl task yield
authorWanpeng Li <wanpeng.li@linux.intel.com>
Tue, 10 Mar 2015 04:20:00 +0000 (12:20 +0800)
committerIngo Molnar <mingo@kernel.org>
Tue, 10 Mar 2015 04:46:50 +0000 (05:46 +0100)
commit44fb085bfa17628c6d2aaa6af6b292a8499e9cbd
treeb36a7e11fa7cb3bf9dfb86c56c72431ab86b773e
parent1e78cdbd9b2266503339accafe0ebdd99b93a531
sched/deadline: Add rq->clock update skip for dl task yield

This patch adds rq->clock update skip for SCHED_DEADLINE task yield,
to tell update_rq_clock() that we've just updated the clock, so that
we don't do a microscopic update in schedule() and double the
fastpath cost.

Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1425961200-3809-1-git-send-email-wanpeng.li@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/sched/deadline.c