From 5e6be5782bdd1a6c4e2959d1cab08f8100f5a0ae Mon Sep 17 00:00:00 2001
From: wanglujun <wanglujun@uniontech.com>
Date: Tue, 7 May 2024 16:43:16 +0800
Subject: [PATCH] fix clippy warning casting u64 to usize may truncate the
 value on targets with 32-bit wide pointer

---
 src/firecracker/examples/uffd/uffd_utils.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/firecracker/examples/uffd/uffd_utils.rs b/src/firecracker/examples/uffd/uffd_utils.rs
index f5a5773e115..0e6248f85c8 100644
--- a/src/firecracker/examples/uffd/uffd_utils.rs
+++ b/src/firecracker/examples/uffd/uffd_utils.rs
@@ -182,7 +182,7 @@ impl Runtime {
         let file_meta = backing_file
             .metadata()
             .expect("can not get backing file metadata");
-        let backing_memory_size = file_meta.len() as usize;
+        let backing_memory_size = usize::try_from(file_meta.len());
         // # Safety:
         // File size and fd are valid
         let ret = unsafe {