diff options
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | kernel/sched_fair.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 32112033b7b..4a9793e0967 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -2276,8 +2276,13 @@ unsigned long scale_rt_power(int cpu) u64 total, available; total = sched_avg_period() + (rq->clock - rq->age_stamp); - available = total - rq->rt_avg; + if (unlikely(total < rq->rt_avg)) { + /* Ensures that power won't end up being negative */ + available = 0; + } else { + available = total - rq->rt_avg; + } if (unlikely((s64)total < SCHED_LOAD_SCALE)) total = SCHED_LOAD_SCALE; |