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android-kvm / linux / b5087669ebe30b65a37113177c778af0e68e2955 / . / kernel / locking / rtmutex-debug.h
blob: 5078c6ddf4a53887f6a5521a4c8d07a2b774e7d3 [file] [log] [blame]
Ingo Molnare7eebaf2006-06-27 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 Molnare7eebaf2006-06-27 02:54:55 -0700[diff] [blame]12extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
13extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter);
Peter Zijlstraf5694782016-09-19 12:15:37 +0200[diff] [blame]14extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key);
Ingo Molnar9a11b49a2006-07-03 00:24:33 -0700[diff] [blame]15extern void debug_rt_mutex_lock(struct rt_mutex *lock);
Ingo Molnare7eebaf2006-06-27 02:54:55 -0700[diff] [blame]16extern void debug_rt_mutex_unlock(struct rt_mutex *lock);
17extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock,
Ingo Molnar9a11b49a2006-07-03 00:24:33 -0700[diff] [blame]18 struct task_struct *powner);
Ingo Molnare7eebaf2006-06-27 02:54:55 -0700[diff] [blame]19extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock);
Thomas Gleixner8930ed802014-05-22 03:25:47 +0000[diff] [blame]20extern void debug_rt_mutex_deadlock(enum rtmutex_chainwalk chwalk,
21 struct rt_mutex_waiter *waiter,
Ingo Molnare7eebaf2006-06-27 02:54:55 -0700[diff] [blame]22 struct rt_mutex *lock);
23extern 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
Thomas Gleixner8930ed802014-05-22 03:25:47 +0000[diff] [blame]27static inline bool debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
28 enum rtmutex_chainwalk walk)
Ingo Molnare7eebaf2006-06-27 02:54:55 -0700[diff] [blame]29{
30 return (waiter != NULL);
31}
Thomas Gleixner3d5c9342014-06-05 12:34:23 +0200[diff] [blame]32
33static inline void rt_mutex_print_deadlock(struct rt_mutex_waiter *w)
34{
35 debug_rt_mutex_print_deadlock(w);
36}