Kernel prepatch 5.9-rc1

Linux has released the 5.9-rc1 kernelprepatch and closed the merge window for this development cycle."This merge window felt a lot more normal than 5.8, and all the statsconfirm that it seems to be the usual size." In the end, 12,866non-merge changesets were pulled for 5.9-rc1, as compared to 14,206 for5.8-rc1.