Release 4.10 kernel/locking/mutex-debug.h

/*
 * Mutexes: blocking mutual exclusion locks
 *
 * started by Ingo Molnar:
 *
 *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
 *
 * This file contains mutex debugging related internal declarations,
 * prototypes and inline functions, for the CONFIG_DEBUG_MUTEXES case.
 * More details are in kernel/mutex-debug.c.
 */

/*
 * This must be called with lock->wait_lock held.
 */
extern void debug_mutex_lock_common(struct mutex *lock,
				    struct mutex_waiter *waiter);
extern void debug_mutex_wake_waiter(struct mutex *lock,
				    struct mutex_waiter *waiter);
extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
extern void debug_mutex_add_waiter(struct mutex *lock,
				   struct mutex_waiter *waiter,
				   struct task_struct *task);
extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
				struct task_struct *task);
extern void debug_mutex_unlock(struct mutex *lock);
extern void debug_mutex_init(struct mutex *lock, const char *name,
			     struct lock_class_key *key);


#define spin_lock_mutex(lock, flags)			\
	do {                                            \
                struct mutex *l = container_of(lock, struct mutex, wait_lock); \
                                                        \
                DEBUG_LOCKS_WARN_ON(in_interrupt());    \
                local_irq_save(flags);                  \
                arch_spin_lock(&(lock)->rlock.raw_lock);\
                DEBUG_LOCKS_WARN_ON(l->magic != l);     \
        } while (0)


#define spin_unlock_mutex(lock, flags)				\
	do {                                                    \
                arch_spin_unlock(&(lock)->rlock.raw_lock);      \
                local_irq_restore(flags);                       \
                preempt_check_resched();                        \
        } while (0)
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Directory: kernel/locking

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