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 13extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter); 14extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter); 15extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key); 16extern void debug_rt_mutex_lock(struct rt_mutex *lock); 17extern void debug_rt_mutex_unlock(struct rt_mutex *lock); 18extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock, 19 struct task_struct *powner); 20extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock); 21extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk, 22 struct rt_mutex_waiter *waiter, 23 struct rt_mutex *lock); 24extern void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter); 25# define debug_rt_mutex_reset_waiter(w) \ 26 do { (w)->deadlock_lock = NULL; } while (0) 27 28static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter, 29 enum rtmutex_chainwalk walk) 30{ 31 return (waiter != NULL); 32} 33 34static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w) 35{ 36 debug_rt_mutex_print_deadlock(w); 37} 38