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kernel/mutex.h 1.27 KB
6053ee3b3   Ingo Molnar   [PATCH] mutex sub...
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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 prototypes, for the
   * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs:
   */
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  #define spin_lock_mutex(lock, flags) \
  		do { spin_lock(lock); (void)(flags); } while (0)
  #define spin_unlock_mutex(lock, flags) \
  		do { spin_unlock(lock); (void)(flags); } while (0)
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  #define mutex_remove_waiter(lock, waiter, ti) \
  		__list_del((waiter)->list.prev, (waiter)->list.next)
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  #ifdef CONFIG_SMP
  static inline void mutex_set_owner(struct mutex *lock)
  {
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  	lock->owner = current;
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  }
  
  static inline void mutex_clear_owner(struct mutex *lock)
  {
  	lock->owner = NULL;
  }
  #else
  static inline void mutex_set_owner(struct mutex *lock)
  {
  }
  
  static inline void mutex_clear_owner(struct mutex *lock)
  {
  }
  #endif
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  #define debug_mutex_wake_waiter(lock, waiter)		do { } while (0)
  #define debug_mutex_free_waiter(waiter)			do { } while (0)
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  #define debug_mutex_add_waiter(lock, waiter, ti)	do { } while (0)
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  #define debug_mutex_unlock(lock)			do { } while (0)
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  #define debug_mutex_init(lock, name, key)		do { } while (0)
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  static inline void
  debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
  {
  }