Merge tag 'locking-urgent-2025-07-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fix from Thomas Gleixner:
 "A single fix for the futex selftest code to make 32-bit user space
  work correctly on 64-bit kernels.

  sys_futex_wait() expects a struct __kernel_timespec for the timeout,
  but the selftest uses struct timespec, which is the original 32-bit
  non 2038 compliant variant.

  Fix it up by converting the callsite supplied timespec to a
  __kernel_timespec and hand that into the syscall"

* tag 'locking-urgent-2025-07-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  selftests/futex: Convert 32-bit timespec to 64-bit version for 32-bit compatibility mode

Author: torvalds

tools/testing/selftests/futex/include/futex2test.h

@@ -4,6 +4,7 @@
  *
  * Copyright 2021 Collabora Ltd.
  */
+#include <linux/time_types.h>
 #include <stdint.h>
 
 #define u64_to_ptr(x) ((void *)(uintptr_t)(x))
@@ -65,7 +66,12 @@ struct futex32_numa {
 static inline int futex_waitv(volatile struct futex_waitv *waiters, unsigned long nr_waiters,
 			      unsigned long flags, struct timespec *timo, clockid_t clockid)
 {
-	return syscall(__NR_futex_waitv, waiters, nr_waiters, flags, timo, clockid);
+		struct __kernel_timespec ts = {
+			.tv_sec = timo->tv_sec,
+			.tv_nsec = timo->tv_nsec,
+		};
+
+		return syscall(__NR_futex_waitv, waiters, nr_waiters, flags, &ts, clockid);
 }
 
 /*