From d930a581f890e425887d38c848f7cffc80d3f694 Mon Sep 17 00:00:00 2001
From: Joonas Koivunen <joonas@neon.tech>
Date: Fri, 18 Aug 2023 20:43:29 +0300
Subject: [PATCH] layer_manager: compaction changes

---
 pageserver/src/tenant/timeline/layer_manager.rs | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/pageserver/src/tenant/timeline/layer_manager.rs b/pageserver/src/tenant/timeline/layer_manager.rs
index c0b311733c..63cba5e7f3 100644
--- a/pageserver/src/tenant/timeline/layer_manager.rs
+++ b/pageserver/src/tenant/timeline/layer_manager.rs
@@ -200,13 +200,18 @@ impl LayerManager {
     pub(crate) fn finish_compact_l0(
         &mut self,
         layer_removal_cs: &Arc<tokio::sync::OwnedMutexGuard<()>>,
-        compact_from: Vec<Arc<dyn PersistentLayer>>,
-        compact_to: Vec<Arc<dyn PersistentLayer>>,
+        compact_from: Vec<Arc<LayerE>>,
+        compact_to: &[ResidentLayer],
         metrics: &TimelineMetrics,
     ) -> Result<()> {
         let mut updates = self.layer_map.batch_update();
         for l in compact_to {
-            Self::insert_historic_layer(l, &mut updates, &mut self.layer_fmgr);
+            l.access_stats().record_residence_event(
+                &guard,
+                LayerResidenceStatus::Resident,
+                LayerResidenceEventReason::LayerCreate,
+            );
+            Self::insert_historic_layer(l.as_ref().clone(), &mut updates, &mut self.layer_fmgr);
         }
         for l in compact_from {
             // NB: the layer file identified by descriptor `l` is guaranteed to be present