tree 8a3bc230d29cd9c4b97ec86365fcda6ffacf2e9d
parent 6473c85887c724e7f16f2902514eafa798279082
author David Rogers <davidrogers@google.com> 1602537339 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1602693611 +0000

pw_kvs: Count erases + HeavyMaintenance

- Add counting of sectors erased. This count is only since instance
construction.
- Add HeavyMaintenance to be heavy and aggressive about garbage
collecting sectors with valid data.
- Don't erase sectors when doing garbage collection of sectors that are
already erased.

Change-Id: I4fb1647c1920cdc64a7a1029078575068a9156ce
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/20960
Reviewed-by: Wyatt Hepler <hepler@google.com>
Commit-Queue: David Rogers <davidrogers@google.com>