x86: improve default idle

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 8 deletions

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 4f40272474d..e75ccc8a2b8 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -107,16 +107,8 @@ void default_idle(void)
         smp_mb();
         local_irq_disable();
         if (!need_resched()) {
-                ktime_t t0, t1;
-                u64 t0n, t1n;
-
-                t0 = ktime_get();
-                t0n = ktime_to_ns(t0);
                 safe_halt();    /* enables interrupts racelessly */
                 local_irq_disable();
-                t1 = ktime_get();
-                t1n = ktime_to_ns(t1);
-                sched_clock_idle_wakeup_event(t1n - t0n);
         }
         local_irq_enable();
         current_thread_info()->status |= TS_POLLING;