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- /*
- * 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_set_owner(struct mutex *lock, struct thread_info *new_owner);
- static inline void debug_mutex_clear_owner(struct mutex *lock)
- {
- lock->owner = NULL;
- }
- 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 thread_info *ti);
- extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
- struct thread_info *ti);
- 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); \
- __raw_spin_lock(&(lock)->raw_lock); \
- DEBUG_LOCKS_WARN_ON(l->magic != l); \
- } while (0)
- #define spin_unlock_mutex(lock, flags) \
- do { \
- __raw_spin_unlock(&(lock)->raw_lock); \
- local_irq_restore(flags); \
- preempt_check_resched(); \
- } while (0)
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