优化了代码

DragonOS-Community · Aug 24, 2023 · 2414685 · 2414685
1 parent 0ae8dfc
commit 2414685
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/kernel/src/libs/rwlock.rs b/kernel/src/libs/rwlock.rs
@@ -520,10 +520,7 @@ impl<'rwlock, T> Drop for RwLockWriteGuard<'rwlock, T> {
         self.inner
             .lock
             .fetch_and(!(WRITER | UPGRADED), Ordering::Release);
-        if let Some(_) = self.irq_guard {
-            // 自动 drop 包含的 irq_guard，恢复中断
-            self.irq_guard = None;
-        }
+        self.irq_guard.take();
         ProcessManager::current_pcb().preempt_enable();
     }
 }