const runtime.arenaL2Bits

7 uses

	runtime (current package)
		malloc.go#L282: 	arenaL2Bits = heapAddrBits - logHeapArenaBytes - arenaL1Bits
		malloc.go#L286: 	arenaL1Shift = arenaL2Bits
		malloc.go#L291: 	arenaBits = arenaL1Bits + arenaL2Bits
		malloc.go#L768: 			l2 = (*[1 << arenaL2Bits]*heapArena)(sysAllocOS(unsafe.Sizeof(*l2)))
		malloc.go#L914: 		l2 := (*[1 << arenaL2Bits]*heapArena)(atomic.Loadp(unsafe.Pointer(&h.arenas[i])))
		mheap.go#L147: 	arenas [1 << arenaL1Bits]*[1 << arenaL2Bits]*heapArena
		mheap.go#L633: 		return uint(i) & (1<<arenaL2Bits - 1)