Kernel prepatch 5.19-rc6

The 5.19-rc6 kernel prepatch is out fortesting.

Perhaps somewhat unusually, I picked up a few fixes that werepending in trees that haven't actually hit upstream yet. It'salready rc6, and I wanted to close out a few of the regressionreports and not have to wait for another (possibly last, knockwood) rc to have them in the tree.