diff options
| -rw-r--r-- | kernel/sched/fair.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 233bd2ebbb73..14bd31b17c71 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -1549,10 +1549,7 @@ update_stats_curr_start(struct cfs_rq *cfs_rq, struct sched_entity *se) se->exec_start = rq_clock_task(rq_of(cfs_rq)); } -/************************************************** - * Scheduling class queueing methods: - */ - +/* Check sched_smt_active before calling this to avoid overheads in fastpaths */ static inline bool is_core_idle(int cpu) { int sibling; @@ -11961,7 +11958,9 @@ static int should_we_balance(struct lb_env *env) * balancing cores, but remember the first idle SMT CPU for * later consideration. Find CPU on an idle core first. */ - if (!(env->sd->flags & SD_SHARE_CPUCAPACITY) && !is_core_idle(cpu)) { + if (sched_smt_active() && + !(env->sd->flags & SD_SHARE_CPUCAPACITY) && + !is_core_idle(cpu)) { if (idle_smt == -1) idle_smt = cpu; /* |