| .. | .. |
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| 14 | 14 | #define __LINUX_RT_MUTEX_H |
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| 15 | 15 | |
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| 16 | 16 | #include <linux/linkage.h> |
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| 17 | | -#include <linux/rbtree_type.h> |
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| 18 | | -#include <linux/spinlock_types_raw.h> |
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| 17 | +#include <linux/rbtree.h> |
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| 18 | +#include <linux/spinlock_types.h> |
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| 19 | 19 | |
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| 20 | 20 | extern int max_lock_depth; /* for sysctl */ |
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| 21 | | - |
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| 22 | | -#ifdef CONFIG_DEBUG_MUTEXES |
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| 23 | | -#include <linux/debug_locks.h> |
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| 24 | | -#endif |
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| 25 | 21 | |
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| 26 | 22 | /** |
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| 27 | 23 | * The rt_mutex structure |
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| .. | .. |
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| 35 | 31 | raw_spinlock_t wait_lock; |
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| 36 | 32 | struct rb_root_cached waiters; |
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| 37 | 33 | struct task_struct *owner; |
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| 34 | +#ifdef CONFIG_DEBUG_RT_MUTEXES |
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| 38 | 35 | int save_state; |
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| 36 | + const char *name, *file; |
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| 37 | + int line; |
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| 38 | + void *magic; |
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| 39 | +#endif |
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| 39 | 40 | #ifdef CONFIG_DEBUG_LOCK_ALLOC |
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| 40 | 41 | struct lockdep_map dep_map; |
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| 41 | 42 | #endif |
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| .. | .. |
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| 48 | 49 | extern int rt_mutex_debug_check_no_locks_freed(const void *from, |
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| 49 | 50 | unsigned long len); |
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| 50 | 51 | extern void rt_mutex_debug_check_no_locks_held(struct task_struct *task); |
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| 51 | | - extern void rt_mutex_debug_task_free(struct task_struct *tsk); |
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| 52 | 52 | #else |
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| 53 | 53 | static inline int rt_mutex_debug_check_no_locks_freed(const void *from, |
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| 54 | 54 | unsigned long len) |
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| .. | .. |
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| 56 | 56 | return 0; |
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| 57 | 57 | } |
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| 58 | 58 | # define rt_mutex_debug_check_no_locks_held(task) do { } while (0) |
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| 59 | | -# define rt_mutex_debug_task_free(t) do { } while (0) |
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| 60 | 59 | #endif |
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| 61 | 60 | |
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| 62 | | -#define rt_mutex_init(mutex) \ |
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| 61 | +#ifdef CONFIG_DEBUG_RT_MUTEXES |
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| 62 | +# define __DEBUG_RT_MUTEX_INITIALIZER(mutexname) \ |
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| 63 | + , .name = #mutexname, .file = __FILE__, .line = __LINE__ |
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| 64 | + |
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| 65 | +# define rt_mutex_init(mutex) \ |
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| 63 | 66 | do { \ |
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| 64 | 67 | static struct lock_class_key __key; \ |
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| 65 | 68 | __rt_mutex_init(mutex, __func__, &__key); \ |
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| 66 | 69 | } while (0) |
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| 70 | + |
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| 71 | + extern void rt_mutex_debug_task_free(struct task_struct *tsk); |
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| 72 | +#else |
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| 73 | +# define __DEBUG_RT_MUTEX_INITIALIZER(mutexname) |
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| 74 | +# define rt_mutex_init(mutex) __rt_mutex_init(mutex, NULL, NULL) |
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| 75 | +# define rt_mutex_debug_task_free(t) do { } while (0) |
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| 76 | +#endif |
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| 67 | 77 | |
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| 68 | 78 | #ifdef CONFIG_DEBUG_LOCK_ALLOC |
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| 69 | 79 | #define __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname) \ |
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| .. | .. |
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| 72 | 82 | #define __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname) |
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| 73 | 83 | #endif |
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| 74 | 84 | |
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| 75 | | -#define __RT_MUTEX_INITIALIZER_PLAIN(mutexname) \ |
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| 76 | | - .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(mutexname.wait_lock) \ |
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| 85 | +#define __RT_MUTEX_INITIALIZER(mutexname) \ |
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| 86 | + { .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(mutexname.wait_lock) \ |
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| 77 | 87 | , .waiters = RB_ROOT_CACHED \ |
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| 78 | 88 | , .owner = NULL \ |
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| 79 | | - __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname) |
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| 80 | | - |
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| 81 | | -#define __RT_MUTEX_INITIALIZER(mutexname) \ |
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| 82 | | - { __RT_MUTEX_INITIALIZER_PLAIN(mutexname) \ |
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| 83 | | - , .save_state = 0 } |
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| 84 | | - |
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| 85 | | -#define __RT_MUTEX_INITIALIZER_SAVE_STATE(mutexname) \ |
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| 86 | | - { __RT_MUTEX_INITIALIZER_PLAIN(mutexname) \ |
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| 87 | | - , .save_state = 1 } |
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| 89 | + __DEBUG_RT_MUTEX_INITIALIZER(mutexname) \ |
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| 90 | + __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname)} |
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| 88 | 91 | |
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| 89 | 92 | #define DEFINE_RT_MUTEX(mutexname) \ |
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| 90 | 93 | struct rt_mutex mutexname = __RT_MUTEX_INITIALIZER(mutexname) |
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| .. | .. |
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| 112 | 115 | #endif |
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| 113 | 116 | |
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| 114 | 117 | extern int rt_mutex_lock_interruptible(struct rt_mutex *lock); |
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| 118 | +extern int rt_mutex_timed_lock(struct rt_mutex *lock, |
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| 119 | + struct hrtimer_sleeper *timeout); |
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| 120 | + |
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| 115 | 121 | extern int rt_mutex_trylock(struct rt_mutex *lock); |
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| 116 | 122 | |
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| 117 | 123 | extern void rt_mutex_unlock(struct rt_mutex *lock); |
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