From bdab18633a302c82b5e5d5dbc4e38b0baf9c0837 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 20 Sep 2026 08:15:23 -0700
Subject: Merge tag 'locking-urgent-2026-09-20' of
 git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull futex fix from Ingo Molnar:

 - Also allocate a default private futex hash on vfork() as well, to
   avoid races with (private) futex waiters (Peter Zijlstra)

* tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Also allocate private hash on vfork()
---
 arch/arm/lib/testchangebit.S | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 arch/arm/lib/testchangebit.S

(limited to 'arch/arm/lib/testchangebit.S')

diff --git a/arch/arm/lib/testchangebit.S b/arch/arm/lib/testchangebit.S
new file mode 100644
index 000000000..f13fe9bc2
--- /dev/null
+++ b/arch/arm/lib/testchangebit.S
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  linux/arch/arm/lib/testchangebit.S
+ *
+ *  Copyright (C) 1995-1996 Russell King
+ */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include "bitops.h"
+                .text
+
+testop	_test_and_change_bit, eor, str
+
+#if __LINUX_ARM_ARCH__ >= 6
+sync_testop	_sync_test_and_change_bit, eor, str
+#endif
-- 
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