From 007b7ddccb8096c664374cced0d2adfe0c0819e4 Mon Sep 17 00:00:00 2001
From: Santiago Carmuega <santiago@carmuega.me>
Date: Sun, 13 Oct 2024 15:52:53 -0300
Subject: [PATCH] fix: use saturating substract in housekeeping logic

---
 src/wal/redb.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/wal/redb.rs b/src/wal/redb.rs
index 09f78b22..e7da3560 100644
--- a/src/wal/redb.rs
+++ b/src/wal/redb.rs
@@ -249,8 +249,8 @@ impl WalStore {
             }
         };
 
-        let delta = last_slot - start_slot;
-        let excess = delta - max_slots;
+        let delta = last_slot.saturating_sub(start_slot);
+        let excess = delta.saturating_sub(max_slots);
 
         debug!(
             delta,