From 2e3583889eef693c31b8d1fb4b03c6c384691b8e Mon Sep 17 00:00:00 2001
From: Paul IP <52645166+paulip1792@users.noreply.github.com>
Date: Sat, 20 Dec 2025 22:32:21 +0800
Subject: [PATCH] perf: improve AtomicWaker::wake performance

---
 futures-core/src/task/__internal/atomic_waker.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/futures-core/src/task/__internal/atomic_waker.rs b/futures-core/src/task/__internal/atomic_waker.rs
index 3b82fb7cc8..0eb8116516 100644
--- a/futures-core/src/task/__internal/atomic_waker.rs
+++ b/futures-core/src/task/__internal/atomic_waker.rs
@@ -385,7 +385,7 @@ impl AtomicWaker {
                 let waker = unsafe { (*self.waker.get()).take() };
 
                 // Release the lock
-                self.state.fetch_and(!WAKING, Release);
+                self.state.swap(WAITING, Release);
 
                 waker
             }