Linux 4.15 rc9

I really really wanted to just release 4.15 today, but things haven'tcalmed down enough for me to feel comfy about it, and Davem tells mehe still has some networking fixes pending. Laura Abbott found andfixed a very subtle boot bug introduced this development cycle onlyyesterday, and it just didn't feel right to say that we're done.So I'm doing an rc9 instead. I don't particularly like to, but I likeit even less releasing something that doesn't seem baked enough.Some people have already started sending me pull requests for 4.16(generally because they aren't expecting to be online next week andexpected the merge window to open). I appreciate it, and I'll keepthem queued up, I just won't start applying them quite yet.Anyway, rc9 is mostly arch updates (x86, arm, powerpc, mips) anddrivers (gpu, networking and md). And some core networking. And thenthere's various random misc fallout  (tracing, bpf, and new selftests)I really expect no more delays after this. We've had rc9's before, butthey have been pretty rare (the last one was 3.1-rc9 back in 2011 -that release went all the way to rc10, and I really don't think we'lldo that this time _despite_ all the CPU bug mitigation craziness).              Linus