callchain_mutex    34 kernel/events/callchain.c static DEFINE_MUTEX(callchain_mutex);
callchain_mutex   113 kernel/events/callchain.c 	mutex_lock(&callchain_mutex);
callchain_mutex   139 kernel/events/callchain.c 	mutex_unlock(&callchain_mutex);
callchain_mutex   146 kernel/events/callchain.c 	if (atomic_dec_and_mutex_lock(&nr_callchain_events, &callchain_mutex)) {
callchain_mutex   148 kernel/events/callchain.c 		mutex_unlock(&callchain_mutex);
callchain_mutex   250 kernel/events/callchain.c 	mutex_lock(&callchain_mutex);
callchain_mutex   256 kernel/events/callchain.c 	mutex_unlock(&callchain_mutex);