Yueh-Hsuan Chiang 3aa49e2c69
Keep all erasure coding shreds even on successful recovery (#20968) (#21052)
Problem
Blockstore currently removes erasure shreds if the data shreds are
successfully recovered on insert, which is an issue if we want to
serve coding shreds over repair.

Summary of Changes
This diff keeps all coding shreds even on successful recovery and
changes change the signature of prev_inserted_codes to immutable
reference to ensure its immunity.

Fixes #20968
2021-11-16 11:26:34 -08:00
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