3359 	struct watched_page *pwp;  in as_setwatch()  local
3370 	for (pwp = avl_first(&as->a_wpage); pwp != NULL;  in as_setwatch()
3371 	    pwp = AVL_NEXT(&as->a_wpage, pwp)) {  in as_setwatch()
3374 		vaddr = pwp->wp_vaddr;  in as_setwatch()
3375 		if (pwp->wp_oprot != 0 ||	/* already set up */  in as_setwatch()
3380 		pwp->wp_oprot = prot;  in as_setwatch()
3381 		if (pwp->wp_read)  in as_setwatch()
3383 		if (pwp->wp_write)  in as_setwatch()
3385 		if (pwp->wp_exec)  in as_setwatch()
3387 		if (!(pwp->wp_flags & WP_NOWATCH) && prot != pwp->wp_oprot) {  in as_setwatch()
3390 				pwp->wp_oprot = 0;  in as_setwatch()
3396 		pwp->wp_prot = prot;  in as_setwatch()
3406 	struct watched_page *pwp;  in as_clearwatch()  local
3417 	for (pwp = avl_first(&as->a_wpage); pwp != NULL;  in as_clearwatch()
3418 	    pwp = AVL_NEXT(&as->a_wpage, pwp)) {  in as_clearwatch()
3421 		vaddr = pwp->wp_vaddr;  in as_clearwatch()
3422 		if (pwp->wp_oprot == 0 ||	/* not set up */  in as_clearwatch()
3426 		if ((prot = pwp->wp_oprot) != pwp->wp_prot) {  in as_clearwatch()
3434 		pwp->wp_oprot = 0;  in as_clearwatch()
3435 		pwp->wp_prot = 0;  in as_clearwatch()
3445 	struct watched_page *pwp;  in as_setwatchprot()  local
3460 	if ((pwp = avl_find(&as->a_wpage, &tpw, &where)) == NULL)  in as_setwatchprot()
3461 		pwp = avl_nearest(&as->a_wpage, where, AVL_AFTER);  in as_setwatchprot()
3463 	while (pwp != NULL && pwp->wp_vaddr < eaddr) {  in as_setwatchprot()
3465 		vaddr = pwp->wp_vaddr;  in as_setwatchprot()
3468 		if (pwp->wp_read)  in as_setwatchprot()
3470 		if (pwp->wp_write)  in as_setwatchprot()
3472 		if (pwp->wp_exec)  in as_setwatchprot()
3474 		if (!(pwp->wp_flags & WP_NOWATCH) && wprot != pwp->wp_oprot) {  in as_setwatchprot()
3488 		pwp->wp_oprot = prot;  in as_setwatchprot()
3489 		pwp->wp_prot = wprot;  in as_setwatchprot()
3491 		pwp = AVL_NEXT(&as->a_wpage, pwp);  in as_setwatchprot()
3502 	struct watched_page *pwp;  in as_clearwatchprot()  local
3513 	if ((pwp = avl_find(&as->a_wpage, &tpw, &where)) == NULL)  in as_clearwatchprot()
3514 		pwp = avl_nearest(&as->a_wpage, where, AVL_AFTER);  in as_clearwatchprot()
3518 	while (pwp != NULL && pwp->wp_vaddr < eaddr) {  in as_clearwatchprot()
3520 		if ((prot = pwp->wp_oprot) != 0) {  in as_clearwatchprot()
3523 			if (prot != pwp->wp_prot) {  in as_clearwatchprot()
3525 				seg = as_segat(as, pwp->wp_vaddr);  in as_clearwatchprot()
3528 				err = SEGOP_SETPROT(seg, pwp->wp_vaddr,  in as_clearwatchprot()
3537 			pwp->wp_oprot = 0;  in as_clearwatchprot()
3538 			pwp->wp_prot = 0;  in as_clearwatchprot()
3541 		pwp = AVL_NEXT(&as->a_wpage, pwp);  in as_clearwatchprot()