| 1 | |
| 2 | * Mutexes: blocking mutual exclusion locks
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| 3 | *
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| 4 | * started by Ingo Molnar:
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| 5 | *
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| 6 | * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <[email protected]>
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| 7 | *
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| 8 | * This file contains mutex debugging related internal prototypes, for the
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| 9 | * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs:
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| 10 |
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| 11 |
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| 12 | #define spin_lock_mutex(lock, flags) \
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| 13 | do { spin_lock(lock); (void)(flags); } while (0)
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| 14 | #define spin_unlock_mutex(lock, flags) \
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| 15 | do { spin_unlock(lock); (void)(flags); } while (0)
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| 16 | #define mutex_remove_waiter(lock, waiter, ti) \
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| 17 | __list_del((waiter)->list.prev, (waiter)->list.next)
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| 18 |
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| 19 | #ifdef CONFIG_SMP
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| 20 | static inline void mutex_set_owner(struct mutex *lock)
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| 21 | {
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| 22 | lock->owner = current;
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| 23 | }
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| 24 |
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| 25 | static inline void mutex_clear_owner(struct mutex *lock)
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| 26 | {
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| 27 | lock->owner = NULL;
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| 28 | }
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| 29 | #else
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| 30 | static inline void mutex_set_owner(struct mutex *lock)
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| 31 | {
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| 32 | }
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| 33 |
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| 34 | static inline void mutex_clear_owner(struct mutex *lock)
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| 35 | {
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| 36 | }
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| 37 | #endif
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| 38 |
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| 39 | #define debug_mutex_wake_waiter(lock, waiter) do { } while (0)
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| 40 | #define debug_mutex_free_waiter(waiter) do { } while (0)
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| 41 | #define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0)
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| 42 | #define debug_mutex_unlock(lock) do { } while (0)
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| 43 | #define debug_mutex_init(lock, name, key) do { } while (0)
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| 44 |
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| 45 | static inline void
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| 46 | debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
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| 47 | {
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| 48 | }
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