perf: reduce the scope of the block requests lock in Ledger::update_b…

…lock_requests

Signed-off-by: ljedrz <[email protected]>

src/network/ledger.rs

@@ -606,9 +606,6 @@ impl<N: Network, E: Environment> Ledger<N, E> {
             return;
         }
 
-        // Acquire the lock for block requests.
-        let _block_requests_lock = self.block_requests_lock.lock().await;
-
         // Retrieve the latest block height of this ledger.
         let latest_block_height = self.canon.latest_block_height();
 
@@ -655,6 +652,9 @@ impl<N: Network, E: Environment> Ledger<N, E> {
             return;
         }
 
+        // Acquire the lock for block requests.
+        let _block_requests_lock = self.block_requests_lock.lock().await;
+
         // Case 2 - Proceed to send block requests, as the peer is ahead of this ledger.
         if let (Some(peer_ip), Some(is_fork)) = (maximal_peer, maximal_peer_is_fork) {
             // Determine the common ancestor block height between this ledger and the peer.