diff options
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index c917dcad82ad..01b5189235f2 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -36,12 +36,6 @@ extern void cpu_load_update_active(struct rq *this_rq); static inline void cpu_load_update_active(struct rq *this_rq) { } #endif -#ifdef CONFIG_SCHED_SMT -extern void update_idle_core(struct rq *rq); -#else -static inline void update_idle_core(struct rq *rq) { } -#endif - /* * Helpers for converting nanosecond timing to jiffy resolution */ @@ -730,6 +724,23 @@ static inline int cpu_of(struct rq *rq) #endif } + +#ifdef CONFIG_SCHED_SMT + +extern struct static_key_false sched_smt_present; + +extern void __update_idle_core(struct rq *rq); + +static inline void update_idle_core(struct rq *rq) +{ + if (static_branch_unlikely(&sched_smt_present)) + __update_idle_core(rq); +} + +#else +static inline void update_idle_core(struct rq *rq) { } +#endif + DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); #define cpu_rq(cpu) (&per_cpu(runqueues, (cpu))) |