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#ifndef __XFS_SUPPORT_MUTEX_H__
#define __XFS_SUPPORT_MUTEX_H__
#include <sys/param.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sx.h>
/*
* Map the mutex'es from IRIX to FreeBSD. Irix holds mutexes across
* sleeps, so on FreeBSD we have a choice of sema, sx or lockmgr
* to use as a underlining implemenation. Go with sx always locked
* in exclusive mode for now as it gets all the benefits of witness
* checking.
*/
typedef struct sx mutex_t;
#define mutex_init(lock, type, name) sx_init(lock, name)
#define mutex_lock(lock, num) sx_xlock(lock)
#define mutex_trylock(lock) sx_try_xlock(lock)
#define mutex_unlock(lock) sx_xunlock(lock)
#define mutex_destroy(lock) sx_destroy(lock)
/*
* Type for mutex_init()
*/
#define MUTEX_DEFAULT 0
#endif /* __XFS_SUPPORT_MUTEX_H__ */
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