| Ingo Molnar | e7eebaf | 2006-06-27 02:54:55 -0700 | [diff] [blame] | 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 | |
| Ingo Molnar | e7eebaf | 2006-06-27 02:54:55 -0700 | [diff] [blame] | 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); |
| Ingo Molnar | 9a11b49a | 2006-07-03 00:24:33 -0700 | [diff] [blame] | 18 | extern void debug_rt_mutex_lock(struct rt_mutex *lock); |
| Ingo Molnar | e7eebaf | 2006-06-27 02:54:55 -0700 | [diff] [blame] | 19 | extern void debug_rt_mutex_unlock(struct rt_mutex *lock); |
| 20 | extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock, |
| Ingo Molnar | 9a11b49a | 2006-07-03 00:24:33 -0700 | [diff] [blame] | 21 | struct task_struct *powner); |
| Ingo Molnar | e7eebaf | 2006-06-27 02:54:55 -0700 | [diff] [blame] | 22 | extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock); |
| Thomas Gleixner | 8930ed8 | 2014-05-22 03:25:47 +0000 | [diff] [blame] | 23 | extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk, |
| 24 | struct rt_mutex_waiter *waiter, |
| Ingo Molnar | e7eebaf | 2006-06-27 02:54:55 -0700 | [diff] [blame] | 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 | |
| Thomas Gleixner | 8930ed8 | 2014-05-22 03:25:47 +0000 | [diff] [blame] | 30 | static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter, |
| 31 | enum rtmutex_chainwalk walk) |
| Ingo Molnar | e7eebaf | 2006-06-27 02:54:55 -0700 | [diff] [blame] | 32 | { |
| 33 | return (waiter != NULL); |
| 34 | } |
| Thomas Gleixner | 3d5c934 | 2014-06-05 12:34:23 +0200 | [diff] [blame] | 35 | |
| 36 | static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w) |
| 37 | { |
| 38 | debug_rt_mutex_print_deadlock(w); |
| 39 | } |