Kernel prepatch 4.5-rc6

The 4.5-rc6 kernel prepatch is out fortesting. "I'd like to say that things are on track for the usual release timing,but let's see how things look next week. If rc7 hasn't started toshrink, I may end up deciding that this is one of the releases when wedo an rc8 too. Too early to tell. There's nothing particularly scarygoing on, but I'd have liked it even calmer this week."