Kernel prepatch 6.9-rc3

The 6.9-rc3 kernel prepatch is out fortesting.

Ok, so this rc3 looks a bit different than the usual ones, becausethere's a large series to bcachefs to do filesystem repair aftercorruption. Not normally something we'd see in an rc kernel, buthey, if you had a corrupted bcachefs filesystem you'd probably wantthis, and if you thought bcachefs was stable already, I have abridge to sell you. Special deal only for you, real cheap.