const runtime.arenaL2Bits

7 uses

	runtime (current package)
		malloc.go#L284: 	arenaL2Bits = heapAddrBits - logHeapArenaBytes - arenaL1Bits
		malloc.go#L288: 	arenaL1Shift = arenaL2Bits
		malloc.go#L293: 	arenaBits = arenaL1Bits + arenaL2Bits
		malloc.go#L774: 			l2 = (*[1 << arenaL2Bits]*heapArena)(sysAllocOS(unsafe.Sizeof(*l2), "heap index"))
		malloc.go#L918: 		l2 := (*[1 << arenaL2Bits]*heapArena)(atomic.Loadp(unsafe.Pointer(&h.arenas[i])))
		mheap.go#L150: 	arenas [1 << arenaL1Bits]*[1 << arenaL2Bits]*heapArena
		mheap.go#L657: 		return uint(i) & (1<<arenaL2Bits - 1)