Kernel prepatch 7.2-rc2

The 7.2-rc2 kernel prepatch is out fortesting. Linus said: "It's Sunday afternoon, and rc2 is out. Thingslook very normal - it's not a small rc2, but it's in line with recentreleases, and slightly smaller than rc2 was in 7.1. Let's see how that allcontinues, but so far so good."