[$] Preparing DAMON for future memory-management problems

The Data Access
MONitor (DAMON) subsystem provides access to detailed memory-management
statistics, along with a set of tools for implementing policies based on
those statistics. An update on DAMON by its primary author, SeongJae Park,
has been a fixture of the Linux Storage, Filesystem, Memory-Management, and
BPF Summit for some years. The 2025 Summit was no exception; Park led two
sessions on recent and future DAMON developments, and how DAMON might
evolve to facilitate a more access-aware memory-management subsystem in the
future.