Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipgrafted

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()

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/md/dm-vdo/thread-utils.h b/drivers/md/dm-vdo/thread-utils.h
new file mode 100644
index 000000000..687ab43e2
--- /dev/null
+++ b/drivers/md/dm-vdo/thread-utils.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2023 Red Hat
+ */
+
+#ifndef THREAD_UTILS_H
+#define THREAD_UTILS_H
+
+#include <linux/atomic.h>
+
+/* Thread and synchronization utilities */
+
+struct thread;
+
+void vdo_initialize_threads_mutex(void);
+int __must_check vdo_create_thread(void (*thread_function)(void *), void *thread_data,
+				   const char *name, struct thread **new_thread);
+void vdo_join_threads(struct thread *thread);
+
+#endif /* UDS_THREADS_H */