Zach Brown bbbb098e38 scoutfs: warn on stale cached segments
We've yet to really wire up the eventual consistency of btree ring
blocks and segments.  The btree block reading code has had a warning
that fires if it sees stale blocks for a long time (which we've yet to
hit) but we have no such warning in the segment.  If we hit stale
segments we could have very unpredictable results.  So let's add a quick
warning to highlight the case to save us heartache if we hit it before
implementing full retrying.

Signed-off-by: Zach Brown <zab@versity.com>
2017-12-12 18:04:45 -06:00
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