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
12 extern void
13 rt_mutex_deadlock_account_lock(struct rt_mutex *lock, struct task_struct *task);
14 extern void rt_mutex_deadlock_account_unlock(struct task_struct *task);
15 extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
16 extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter);
17 extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name);
18 extern void debug_rt_mutex_lock(struct rt_mutex *lock);
19 extern void debug_rt_mutex_unlock(struct rt_mutex *lock);
20 extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock,
21 struct task_struct *powner);
22 extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock);
23 extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk,
24 struct rt_mutex_waiter *waiter,
25 struct rt_mutex *lock);
26 extern 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
30 static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
31 enum rtmutex_chainwalk walk)
32 {
33 return (waiter != NULL);
34 }
35
36 static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
37 {
38 debug_rt_mutex_print_deadlock(w);
39 }
40
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