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review.trustedfirmware.org / hafnium / third_party / linux / b4b6d4a02fa8aa8187d426b508fb7f3b69df0dcc / . / kernel / locking / mutex-debug.h
blob: 1edd3f45a4ecbad7979f26944a9173b3de028959 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame^]1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Mutexes: blocking mutual exclusion locks
4 *
5 * started by Ingo Molnar:
6 *
7 * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
8 *
9 * This file contains mutex debugging related internal declarations,
10 * prototypes and inline functions, for the CONFIG_DEBUG_MUTEXES case.
11 * More details are in kernel/mutex-debug.c.
12 */
13
14/*
15 * This must be called with lock->wait_lock held.
16 */
17extern void debug_mutex_lock_common(struct mutex *lock,
18 struct mutex_waiter *waiter);
19extern void debug_mutex_wake_waiter(struct mutex *lock,
20 struct mutex_waiter *waiter);
21extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
22extern void debug_mutex_add_waiter(struct mutex *lock,
23 struct mutex_waiter *waiter,
24 struct task_struct *task);
25extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
26 struct task_struct *task);
27extern void debug_mutex_unlock(struct mutex *lock);
28extern void debug_mutex_init(struct mutex *lock, const char *name,
29 struct lock_class_key *key);