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Last change
on this file since 692 was 679, checked in by David Azarewicz, 5 years ago |
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Merge changes from Paul's uniaud32next branch.
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File size:
850 bytes
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| 1 | #ifndef __LINUX_MUTEX_H
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| 2 | #define __LINUX_MUTEX_H
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| 3 |
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| 4 | #include <asm/semaphore.h>
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| 5 | #include <linux/list.h>
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| 6 | #include <linux/types.h>
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| 7 |
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| 8 | struct mutex {
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| 9 | atomic_long_t owner;
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| 10 | spinlock_t wait_lock;
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| 11 | #ifdef CONFIG_MUTEX_SPIN_ON_OWNER
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| 12 | struct optimistic_spin_queue osq; /* Spinner MCS lock */
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| 13 | #endif
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| 14 | struct list_head wait_list;
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| 15 | #ifdef CONFIG_DEBUG_MUTEXES
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| 16 | void *magic;
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| 17 | #endif
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| 18 | #ifdef CONFIG_DEBUG_LOCK_ALLOC
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| 19 | struct lockdep_map dep_map;
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| 20 | #endif
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| 21 | };
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| 22 |
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| 23 | #define mutex semaphore
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| 24 | #define DEFINE_MUTEX(x) DECLARE_MUTEX(x)
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| 25 | #define mutex_init(x) init_MUTEX(x)
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| 26 | #define mutex_destroy(x)
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| 27 | #define mutex_lock(x) down(x)
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| 28 | #define mutex_lock_interruptible(x) down_interruptible(x)
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| 29 | #define mutex_unlock(x) up(x)
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| 30 | #define mutex_lock_nested(lock, subclass) mutex_lock(lock)
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| 31 | static inline int mutex_trylock(struct mutex *lock) {return -1; }
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| 32 | #endif
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