Merge pull request #53985 from xxhdx1985126/wip-63186

crimson/osd: store "final pool info" for pools that are deleted

Reviewed-by: Samuel Just <sjust@redhat.com>

diff --cc src/crimson/osd/osd_meta.cc
Simple merge

diff --cc src/crimson/osd/osd_meta.h
Simple merge

diff --cc src/crimson/osd/shard_services.cc
index c321439df7a8fdfc80112fbb8297115658d81aa6,dd11cddce7330a4ddccc6ed10eae6cb99bc8190c..d73a85fb5f85a667ef9992bf9a670ad0cc1fdea1
--- 1/src/crimson/osd/shard_services.cc
--- 2/src/crimson/osd/shard_services.cc
+++ b/src/crimson/osd/shard_services.cc
@@@ -464,37 -458,15 +470,43 @@@ seastar::future<> OSDSingletonState::st
        logger().error("MOSDMap lied about what maps it had?");
        return seastar::now();
        }
+     }).then([&t, this, &added_maps] {
+       auto [e, map] = *added_maps.begin();
+       auto lastmap = osdmaps.find(e - 1).get();
+       meta_coll->store_final_pool_info(t, lastmap, added_maps);
+       return seastar::now();
      });
+   });
  }
  
 +// Note: store/set_superblock is called in later OSD::handle_osd_map
 +//       so we use the OSD's superblock reference meanwhile.
 +void OSDSingletonState::trim_maps(ceph::os::Transaction& t,
 +                                  OSDSuperblock& superblock)
 +{
 +  epoch_t min =
 +    std::min(superblock.cluster_osdmap_trim_lower_bound,
 +             osdmaps.cached_key_lower_bound());
 +
 +  if (min <= superblock.get_oldest_map()) {
 +    return;
 +  }
 +  logger().debug("{}: min={} oldest_map={}", __func__, min,  superblock.get_oldest_map());
 +
 +  // Trim from the superblock's oldest_map up to `min`.
 +  // Break if we have exceeded the txn target size.
 +  while (superblock.get_oldest_map() < min &&
 +         t.get_num_ops() < crimson::common::local_conf()->osd_target_transaction_size) {
 +    logger().debug("{}: removing old osdmap epoch {}", __func__, superblock.get_oldest_map());
 +    meta_coll->remove_map(t, superblock.get_oldest_map());
 +    superblock.maps.erase(superblock.get_oldest_map());
 +  }
 +
 +  // we should not trim past osdmaps.cached_key_lower_bound()
 +  // as there may still be PGs with those map epochs recorded.
 +  ceph_assert(min <= osdmaps.cached_key_lower_bound());
 +}
 +
  seastar::future<Ref<PG>> ShardServices::make_pg(
    OSDMapService::cached_map_t create_map,
    spg_t pgid,