58 #define	RWST_HELD(l)		((l)->rwst_count != 0)  argument
59 #define	RWST_READ_HELD(l)	((l)->rwst_count > 0)  argument
60 #define	RWST_WRITE_HELD(l)	((l)->rwst_count < 0)  argument
61 #define	RWST_WRITE_OWNER(l)	\  argument
62 	((l)->rwst_count == (LONG_MIN | (intptr_t)curthread))
63 #define	RWST_OWNER(l)		(RWST_WRITE_HELD(l) ? \  argument
64 	((struct _kthread *)((l)->rwst_count & ~LONG_MIN)) : NULL)
65 #define	RWST_READ_WANTED(l)	CV_HAS_WAITERS(&(l)->rwst_rcv)  argument
66 #define	RWST_WRITE_WANTED(l)	CV_HAS_WAITERS(&(l)->rwst_wcv)  argument
69 #define	RWST_READ_WAIT(l, f)	RWST_WAIT(&(l)->rwst_rcv, &(l)->rwst_lock, f)  argument
70 #define	RWST_WRITE_WAIT(l, f)	RWST_WAIT(&(l)->rwst_wcv, &(l)->rwst_lock, f)  argument
71 #define	RWST_READ_WAKE_ALL(l)	cv_broadcast(&(l)->rwst_rcv)  argument
72 #define	RWST_WRITE_WAKE_ONE(l)	cv_signal(&(l)->rwst_wcv)  argument
73 #define	RWST_READ_ENTER(l)	(l)->rwst_count++  argument
74 #define	RWST_WRITE_ENTER(l)	(l)->rwst_count = LONG_MIN | (intptr_t)curthread  argument
75 #define	RWST_READ_EXIT(l)	(l)->rwst_count--  argument
76 #define	RWST_WRITE_EXIT(l)	(l)->rwst_count = 0  argument