[$] The beginning of the 6.19 merge window

As of this writing, 4,124 non-merge commits have been pulled into the
mainline repository for the 6.19 kernel development cycle. That is a
relatively small fraction of what can be expected this time around, but it
contains quite a bit of significant work, with changes to many core kernel
subsystems. Read on for a summary of the first part of the 6.19 merge
window.