rtmutex-debug.h 1.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * RT-Mutexes: blocking mutual exclusion locks with PI support
  4. *
  5. * started by Ingo Molnar and Thomas Gleixner:
  6. *
  7. * Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
  8. * Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
  9. *
  10. * This file contains macros used solely by rtmutex.c. Debug version.
  11. */
  12. extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
  13. extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter);
  14. extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key);
  15. extern void debug_rt_mutex_lock(struct rt_mutex *lock);
  16. extern void debug_rt_mutex_unlock(struct rt_mutex *lock);
  17. extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock,
  18. struct task_struct *powner);
  19. extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock);
  20. extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk,
  21. struct rt_mutex_waiter *waiter,
  22. struct rt_mutex *lock);
  23. extern void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter);
  24. # define debug_rt_mutex_reset_waiter(w) \
  25. do { (w)->deadlock_lock = NULL; } while (0)
  26. static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
  27. enum rtmutex_chainwalk walk)
  28. {
  29. return (waiter != NULL);
  30. }
  31. static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
  32. {
  33. debug_rt_mutex_print_deadlock(w);
  34. }