Commits
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core fixes from Ingo Molnar: "The tree contains two RCU fixes and a compiler quirk comment fix" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rcu: Make rcu_barrier() understand about missing rcuo kthreads compiler/gcc4+: Remove inaccurate comment about 'asm goto' miscompiles rcu: More on deadlock between CPU hotplug and expedited grace periods
