144 static devicecache_t sysmcache[MAXDEVS];  variable
209 			rw_init(&sysmcache[i].dca_lock, NULL, RW_DRIVER, NULL);  in sysm_attach()
232 			rw_destroy(&sysmcache[i].dca_lock);  in sysm_detach()
397 		rw_enter(&sysmcache[i].dca_lock, RW_WRITER);  in sysmopen()
398 		if ((sysmcache[i].dca_flags & SYSM_ENABLED) &&  in sysmopen()
399 		    sysmcache[i].dca_vp == NULL) {  in sysmopen()
413 			if (vn_open(sysmcache[i].dca_name, UIO_SYSSPACE,  in sysmopen()
415 				sysmcache[i].dca_vp = vp;  in sysmopen()
417 		rw_exit(&sysmcache[i].dca_lock);  in sysmopen()
458 		rw_enter(&sysmcache[i].dca_lock, RW_WRITER);  in sysmclose()
459 		if (sysmcache[i].dca_vp != NULL) {  in sysmclose()
460 			(void) VOP_CLOSE(sysmcache[i].dca_vp, flag,  in sysmclose()
462 			VN_RELE(sysmcache[i].dca_vp);  in sysmclose()
463 			sysmcache[i].dca_vp = NULL;  in sysmclose()
465 		rw_exit(&sysmcache[i].dca_lock);  in sysmclose()
493 		rw_enter(&sysmcache[i].dca_lock, RW_READER);  in sysmwrite()
494 		if (sysmcache[i].dca_vp != NULL &&  in sysmwrite()
495 		    (sysmcache[i].dca_flags & SYSM_ENABLED)) {  in sysmwrite()
499 			(void) VOP_WRITE(sysmcache[i].dca_vp, &tuio, 0, cred,  in sysmwrite()
502 		rw_exit(&sysmcache[i].dca_lock);  in sysmwrite()
524 			if (sysmcache[i].dca_flags & SYSM_ENABLED)  in sysmioctl()
526 				size += strlen(sysmcache[i].dca_name) + 1;  in sysmioctl()
533 		size = sizeof (sysmcache[0].dca_name);  in sysmioctl()
614 			rw_enter(&sysmcache[i].dca_lock, RW_READER);  in sysmioctl()
615 			if (sysmcache[i].dca_flags & SYSM_ENABLED) {  in sysmioctl()
618 				(void) strcat(infop, sysmcache[i].dca_name);  in sysmioctl()
620 			rw_exit(&sysmcache[i].dca_lock);  in sysmioctl()
634 			rw_enter(&sysmcache[i].dca_lock, RW_WRITER);  in sysmioctl()
635 			if (sysmcache[i].dca_devt == newdevt &&  in sysmioctl()
636 			    (sysmcache[i].dca_flags & SYSM_ENABLED)) {  in sysmioctl()
637 				(void) strcpy(sysmcache[i].dca_name, infop);  in sysmioctl()
639 				rw_exit(&sysmcache[i].dca_lock);  in sysmioctl()
641 			} else if (sysmcache[i].dca_devt == newdevt &&  in sysmioctl()
642 			    sysmcache[i].dca_flags == SYSM_DISABLED) {  in sysmioctl()
643 				sysmcache[i].dca_flags |= SYSM_ENABLED;  in sysmioctl()
644 				(void) strcpy(sysmcache[i].dca_name, infop);  in sysmioctl()
645 				rw_exit(&sysmcache[i].dca_lock);  in sysmioctl()
648 			} else if (sysmcache[i].dca_devt == 0) {  in sysmioctl()
649 				ASSERT(sysmcache[i].dca_vp == NULL &&  in sysmioctl()
650 				    sysmcache[i].dca_flags == SYSM_DISABLED);  in sysmioctl()
651 				(void) strcpy(sysmcache[i].dca_name, infop);  in sysmioctl()
652 				sysmcache[i].dca_flags = SYSM_ENABLED;  in sysmioctl()
653 				sysmcache[i].dca_devt = newdevt;  in sysmioctl()
654 				rw_exit(&sysmcache[i].dca_lock);  in sysmioctl()
658 			rw_exit(&sysmcache[i].dca_lock);  in sysmioctl()
666 			rw_enter(&sysmcache[i].dca_lock, RW_WRITER);  in sysmioctl()
667 			if (sysmcache[i].dca_devt == newdevt) {  in sysmioctl()
668 				sysmcache[i].dca_flags = SYSM_DISABLED;  in sysmioctl()
669 				sysmcache[i].dca_name[0] = '\0';  in sysmioctl()
670 				rw_exit(&sysmcache[i].dca_lock);  in sysmioctl()
674 			rw_exit(&sysmcache[i].dca_lock);  in sysmioctl()