8 #include <linux/module.h>
9 #include <linux/hardirq.h>
10 #include <sys/types.h>
13 #define MUTEX_DEFAULT 0
15 #define MUTEX_ADAPTIVE 2
17 #define MUTEX_ENTER_TOTAL 0
18 #define MUTEX_ENTER_NOT_HELD 1
19 #define MUTEX_ENTER_SPIN 2
20 #define MUTEX_ENTER_SLEEP 3
21 #define MUTEX_TRYENTER_TOTAL 4
22 #define MUTEX_TRYENTER_NOT_HELD 5
23 #define MUTEX_STATS_SIZE 6
25 #define KM_MAGIC 0x42424242
26 #define KM_POISON 0x84
33 struct task_struct
*km_owner
;
34 struct semaphore
*km_sem
;
37 struct list_head km_list
;
41 extern int mutex_spin_max
;
44 extern int mutex_stats
[MUTEX_STATS_SIZE
];
45 extern spinlock_t mutex_stats_lock
;
46 extern struct list_head mutex_stats_list
;
47 #define MUTEX_STAT_INC(stats, stat) ((stats)[stat]++)
49 #define MUTEX_STAT_INC(stats, stat)
52 int spl_mutex_init(void);
53 void spl_mutex_fini(void);
55 extern void __spl_mutex_init(kmutex_t
*mp
, char *name
, int type
, void *ibc
);
56 extern void __spl_mutex_destroy(kmutex_t
*mp
);
57 extern int __mutex_tryenter(kmutex_t
*mp
);
58 extern void __mutex_enter(kmutex_t
*mp
);
59 extern void __mutex_exit(kmutex_t
*mp
);
60 extern int __mutex_owned(kmutex_t
*mp
);
61 extern kthread_t
*__spl_mutex_owner(kmutex_t
*mp
);
66 #define mutex_init(mp, name, type, ibc) \
69 __spl_mutex_init(mp, #mp, type, ibc); \
71 __spl_mutex_init(mp, name, type, ibc); \
73 #define mutex_destroy(mp) __spl_mutex_destroy(mp)
74 #define mutex_tryenter(mp) __mutex_tryenter(mp)
75 #define mutex_enter(mp) __mutex_enter(mp)
76 #define mutex_exit(mp) __mutex_exit(mp)
77 #define mutex_owned(mp) __mutex_owned(mp)
78 #define mutex_owner(mp) __spl_mutex_owner(mp)
79 #define MUTEX_HELD(mp) mutex_owned(mp)
85 #endif /* _SPL_MUTEX_H */