/* Take a snapshot of the sequence number. */
s = rcu_exp_gp_seq_snap(rsp);
- if (!try_get_online_cpus()) {
- /* CPU hotplug operation in flight, fall back to normal GP. */
- wait_rcu_gp(call_rcu_sched);
- atomic_long_inc(&rsp->expedited_normal);
- return;
- }
- WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
-
rnp = exp_funnel_lock(rsp, s);
- if (rnp == NULL) {
- put_online_cpus();
+ if (rnp == NULL)
return; /* Someone else did our work for us. */
- }
rcu_exp_gp_seq_start(rsp);
sync_sched_exp_select_cpus(rsp);
rcu_exp_gp_seq_end(rsp);
mutex_unlock(&rnp->exp_funnel_mutex);
-
- put_online_cpus();
}
EXPORT_SYMBOL_GPL(synchronize_sched_expedited);