The acquire and release fences aren't yet used; this is just support for the new version and temporary backwards compatibility for older versions. Change-Id: Ia5ccc05a97c86f649042b9a35e11042fa0187e84
Change-Id: I1194f04085637d5c384e134967249430cc43b6ee
Change-Id: Ie997d13559c0e4e9dc3babfe92ca1acacef2a549
Change-Id: Iabf46fc5d75891f917e06a257470a0e3f2bd3c95