| Current Path : /sys/gnu/fs/xfs/FreeBSD/support/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/gnu/fs/xfs/FreeBSD/support/spin.h |
#ifndef __XFS_SUPPORT_SPIN_H__
#define __XFS_SUPPORT_SPIN_H__
#include <sys/param.h>
#include <sys/types.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#define SPLDECL(s) register_t s
/*
* Map the spinlocks from IRIX to FreeBSD
*/
#define spinlock_init(lock, name) mtx_init(lock, name, NULL, MTX_DEF)
#define spinlock_destroy(lock) mtx_destroy(lock)
/*
* Map lock_t from IRIX to FreeBSD mutexes
*/
typedef struct mtx lock_t;
#define nested_spinunlock(lock) mtx_unlock(lock)
#define nested_spinlock(lock) mtx_lock(lock)
#define nested_spintrylock(lock) mtx_trylock(lock)
#define spin_lock(lock) mtx_lock(lock)
#define spin_unlock(lock) mtx_unlock(lock)
#if LOCK_DEBUG > 0
#define mutex_spinlock(lock) (spin_lock(lock),0)
#else
static __inline register_t
mutex_spinlock(lock_t *lock) { mtx_lock(lock); return 0; }
#endif
#define mutex_spinunlock(lock, s) \
do { \
spin_unlock(lock); \
if (s != 0) {} \
} while (0)
#endif /* __XFS_SUPPORT_SPIN_H__ */