1/* 2 * RT-Mutexes: blocking mutual exclusion locks with PI support 3 * 4 * started by Ingo Molnar and Thomas Gleixner: 5 * 6 * Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> 7 * Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com> 8 * 9 * This file contains macros used solely by rtmutex.c. Debug version. 10 */ 11 12extern void 13rt_mutex_deadlock_account_lock(struct rt_mutex *lock, struct task_struct *task); 14extern void rt_mutex_deadlock_account_unlock(struct task_struct *task); 15extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter); 16extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter); 17extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name); 18extern void debug_rt_mutex_lock(struct rt_mutex *lock); 19extern void debug_rt_mutex_unlock(struct rt_mutex *lock); 20extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock, 21 struct task_struct *powner); 22extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock); 23extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk, 24 struct rt_mutex_waiter *waiter, 25 struct rt_mutex *lock); 26extern void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter); 27# define debug_rt_mutex_reset_waiter(w) \ 28 do { (w)->deadlock_lock = NULL; } while (0) 29 30static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter, 31 enum rtmutex_chainwalk walk) 32{ 33 return (waiter != NULL); 34} 35 36static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w) 37{ 38 debug_rt_mutex_print_deadlock(w); 39} 40