Kernel prepatch 4.13-rc3

The 4.13-rc3 kernel prepatch is out fortesting. "Usually rc2 is the really quiet one, but this releasecycle rc2 was fairly busy and it made me worry a bit about whether therewas something bad going on with 4.13. But no, it was just random timing,and people got started sending in fixes early, and this release cycle it'src3 that is small."