diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 263c15b0312e..63f08cf4f517 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3024,8 +3024,12 @@ void sched_account_irqstart(int cpu, struct task_struct *curr, u64 wallclock) if (!rq->window_start || sched_disable_window_stats) return; - if (is_idle_task(curr) && use_cycle_counter) + if (is_idle_task(curr)) { + /* We're here without rq->lock held, IRQ disabled */ + raw_spin_lock(&rq->lock); update_task_cpu_cycles(curr, cpu); + raw_spin_unlock(&rq->lock); + } } static void reset_task_stats(struct task_struct *p) |