Fix subtraction overflow in metrics (#14290) (#14296)

(cherry picked from commit c693ffaa08) Co-authored-by: sakridge <sakridge@gmail.com>
2020-12-28 02:34:58 +00:00
parent b87e606626
commit eb0fd3625a
3 changed files with 7 additions and 4 deletions
--- a/runtime/src/accounts_db.rs
+++ b/runtime/src/accounts_db.rs
@@ -2723,7 +2723,7 @@ impl AccountsDB {
    fn report_store_timings(&self) {
        let last = self.stats.last_store_report.load(Ordering::Relaxed);
        let now = solana_sdk::timing::timestamp();
-        if now - last > 1000
+        if now.saturating_sub(last) > 1000
            && self
                .stats
                .last_store_report