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, 18 insertions, 0 deletions

diff --git a/rust/helpers/sync.c b/rust/helpers/sync.c
new file mode 100644
index 000000000..4f474fe84
--- /dev/null
+++ b/rust/helpers/sync.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/lockdep.h>
+
+__rust_helper void rust_helper_lockdep_register_key(struct lock_class_key *k)
+{
+	lockdep_register_key(k);
+}
+
+__rust_helper void rust_helper_lockdep_unregister_key(struct lock_class_key *k)
+{
+	lockdep_unregister_key(k);
+}
+
+__rust_helper void rust_helper_lockdep_assert_irqs_disabled(void)
+{
+	lockdep_assert_irqs_disabled();
+}