Kernel prepatch 7.0-rc4

Linus has released 7.0-rc4 for testing. > Then Thursday hit with the networking pull. And then on Friday everybody else decided to send in their work for the week, with a few more trickling in over the weekend. End result: what had for a short few days looked like a nice calm week turned into another "bigger than usual" release candidate. > > To be fair, that "almost everything comes in at the end of the week" is 100% normal, and none of this is surprising. I was admittedly hoping that things would start to calm down, but that was not to be. > > I no longer really believe that it was the one extra week we had last release cycle: I'm starting to suspect it's the psychological result of "hey, new major number", and people are just being a bit more active as a result.