Add a new powerflex_max_image_cache_vtree_size option that can be
tuned to adjust when a PowerFlex image volume cache entry has too
many vtree snaps to support another clone. When the threshold is
reached, the image volume cache entry is deleted and a new one is
seeded. The default value (0) preserves the current threshold,
which is the PowerFlex backend's vtree snapshot limit.
Anthropic's Claude Code v2.0.27 (Sonnet 4.5) assisted with changes
that introduced the new config option, the unit tests and the
release note. The code and text suggested by Claude was reworked
to meet the actual requirements.
Signed-off-by: Alan Bishop <abishop@redhat.com>
Assisted-by: Claude (AI Assistant) claude@anthropic.com
Change-Id: I881dffe82650ef2f3078fc1750ade4f57e1ebd1d
3ac19bfea8