Explain the purpose of the scope

Signed-off-by: kazk <kazk.dev@gmail.com>
kube-rs · Feb 19, 2022 · bdc6c1f · bdc6c1f
1 parent f5f000d
commit bdc6c1f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/kube-client/src/client/auth/mod.rs b/kube-client/src/client/auth/mod.rs
@@ -207,6 +207,7 @@ impl RefreshableToken {
 
             RefreshableToken::File(token_file) => {
                 if let Some(header) = {
+                    // Drop `RwLockReadGuard` before a write lock attempt to prevent deadlock.
                     let guard = token_file.read().await;
                     guard.cached_token().map(bearer_header)
                 } {