sync.Mutex.sema (field)

4 uses

	sync (current package)
		mutex.go#L27: 	sema  uint32
		mutex.go#L162: 			runtime_SemacquireMutex(&m.sema, queueLifo, 1)
		mutex.go#L237: 				runtime_Semrelease(&m.sema, false, 1)
		mutex.go#L248: 		runtime_Semrelease(&m.sema, true, 1)