diff options
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c26a2cd99ec7..b0a48cfc0a22 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3829,16 +3829,20 @@ void sched_ttwu_pending(void *arg) rq_unlock_irqrestore(rq, &rf); } -void send_call_function_single_ipi(int cpu) +/* + * Prepare the scene for sending an IPI for a remote smp_call + * + * Returns true if the caller can proceed with sending the IPI. + * Returns false otherwise. + */ +bool call_function_single_prep_ipi(int cpu) { - struct rq *rq = cpu_rq(cpu); - - if (!set_nr_if_polling(rq->idle)) { - trace_ipi_send_cpumask(cpumask_of(cpu), _RET_IP_, NULL); - arch_send_call_function_single_ipi(cpu); - } else { + if (set_nr_if_polling(cpu_rq(cpu)->idle)) { trace_sched_wake_idle_without_ipi(cpu); + return false; } + + return true; } /* |