diff options
Diffstat (limited to 'sys/gnu/fs/xfs/FreeBSD/support/spin.h')
-rw-r--r-- | sys/gnu/fs/xfs/FreeBSD/support/spin.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sys/gnu/fs/xfs/FreeBSD/support/spin.h b/sys/gnu/fs/xfs/FreeBSD/support/spin.h new file mode 100644 index 0000000..2b09be4 --- /dev/null +++ b/sys/gnu/fs/xfs/FreeBSD/support/spin.h @@ -0,0 +1,42 @@ +#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) {} \ + } while (0) + +#endif /* __XFS_SUPPORT_SPIN_H__ */ |