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, 23 insertions, 0 deletions

diff --git a/drivers/md/dm-vdo/string-utils.h b/drivers/md/dm-vdo/string-utils.h
new file mode 100644
index 000000000..96eecd38b
--- /dev/null
+++ b/drivers/md/dm-vdo/string-utils.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2023 Red Hat
+ */
+
+#ifndef VDO_STRING_UTILS_H
+#define VDO_STRING_UTILS_H
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+
+/* Utilities related to string manipulation */
+
+static inline const char *vdo_bool_to_string(bool value)
+{
+	return value ? "true" : "false";
+}
+
+/* Append a formatted string to the end of a buffer. */
+char *vdo_append_to_buffer(char *buffer, char *buf_end, const char *fmt, ...)
+	__printf(3, 4);
+
+#endif /* VDO_STRING_UTILS_H */