From ee3f6e1d355d08e389ef69c92dcdb30254406d65 Mon Sep 17 00:00:00 2001
From: Matthew Ahrens <mahrens@delphix.com>
Date: Tue, 31 May 2022 20:52:15 -0700
Subject: [PATCH] DLPX-81400 `zcache hits` crash due to time going backwards
 (#457)

---
 cmd/zfs_object_agent/zcache/src/hits.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmd/zfs_object_agent/zcache/src/hits.rs b/cmd/zfs_object_agent/zcache/src/hits.rs
index 4d28bcfcffce..f7978bf4ae56 100644
--- a/cmd/zfs_object_agent/zcache/src/hits.rs
+++ b/cmd/zfs_object_agent/zcache/src/hits.rs
@@ -67,7 +67,7 @@ impl HitsBySize {
             humantime::format_duration(Duration::from_secs(
                 (self.end_time - self.start_time)
                     .to_std()
-                    .unwrap()
+                    .unwrap_or_default()
                     .as_secs()
             )),
         );