sched/idle: Add deferrable vmstat_updater back

Deferrable vmstat_updater was missing in commit:

  c1de45ca831a ("sched/idle: Add support for tasks that inject idle")

Add it back.

Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Aubrey Li <aubrey.li@intel.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1496803742-38274-1-git-send-email-aubrey.li@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index ef63adce0c9cf98eecd9a6896e16d804c6bc1759..6c23e30c0e5cc5addb9f3bf027161bb366686ef6 100644 (file)
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -219,6 +219,7 @@ static void do_idle(void)
         */
 
        __current_set_polling();
+       quiet_vmstat();
        tick_nohz_idle_enter();
 
        while (!need_resched()) {