From 716e9364c47f0e3e9c716d95e4020743fe0df421 Mon Sep 17 00:00:00 2001
From: Eval EXEC <execvy@gmail.com>
Date: Fri, 1 Nov 2024 20:26:19 +0800
Subject: [PATCH] Fix truncate substraction overflow

Signed-off-by: Eval EXEC <execvy@gmail.com>
---
 src/traits/offchain_impls.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/traits/offchain_impls.rs b/src/traits/offchain_impls.rs
index ee8e9c1f..4c8c6ceb 100644
--- a/src/traits/offchain_impls.rs
+++ b/src/traits/offchain_impls.rs
@@ -199,7 +199,7 @@ impl OffchainTransactionDependencyProvider {
             .into_iter()
             .partition(|(_k, v)| {
                 *v >= current_tip_block_number
-                    || (v - current_tip_block_number) >= KEEP_BLOCK_PERIOD
+                    || (current_tip_block_number - v) >= KEEP_BLOCK_PERIOD
             });
         self.tx_tip_num_map = keep;
         self.txs = self