bsd/kern/ubc_subr.c

104 static void ubc_cs_free(struct ubc_info *uip);
570 	register struct ubc_info	*uip;
576 	uip = vp->v_ubcinfo;
582 	if (uip == UBC_INFO_NULL) {
584 		uip = (struct ubc_info *) zalloc(ubc_info_zone);
585 		bzero((char *)uip, sizeof(struct ubc_info));
587 		uip->ui_vnode = vp;
588 		uip->ui_flags = UI_INITED;
589 		uip->ui_ucred = NOCRED;
591 	assert(uip->ui_flags != UI_NONE);
592 	assert(uip->ui_vnode == vp);
595 	vp->v_ubcinfo = uip;
604 	pager = (void *)vnode_pager_setup(vp, uip->ui_pager);
611 	SET(uip->ui_flags, UI_HASPAGER);
612 	uip->ui_pager = pager;
631 		(memory_object_size_t)uip->ui_size, &control);
637 	uip->ui_control = control;	/* cache the value of the mo control */
638 	SET(uip->ui_flags, UI_HASOBJREF);	/* with a named reference */
642 		error = vnode_size(vp, &uip->ui_size, vfs_context_current());
644 			uip->ui_size = 0;
646 		uip->ui_size = filesize;
659  * Parameters:	uip			A pointer to the ubc_info to free
671 ubc_info_free(struct ubc_info *uip)
673 	if (IS_VALID_CRED(uip->ui_ucred)) {
674 		kauth_cred_unref(&uip->ui_ucred);
677 	if (uip->ui_control != MEMORY_OBJECT_CONTROL_NULL)
678 		memory_object_control_deallocate(uip->ui_control);
680 	cluster_release(uip);
681 	ubc_cs_free(uip);
683 	zfree(ubc_info_zone, uip);
689 ubc_info_deallocate(struct ubc_info *uip)
691         ubc_info_free(uip);
730 	struct ubc_info *uip;
740 	uip = vp->v_ubcinfo;
741 	osize = uip->ui_size;
745 	uip->ui_size = nsize;
763 	control = uip->ui_control;
975 	struct ubc_info *uip;
984 	uip = vp->v_ubcinfo;
985 	credp = uip->ui_ucred;
990 			uip->ui_ucred = kauth_cred_proc_ref(p);
992 			uip->ui_ucred = uthread->uu_ucred;
993 			kauth_cred_ref(uip->ui_ucred);
1032 	struct ubc_info *uip;
1044 	uip = vp->v_ubcinfo;
1045 	credp = uip->ui_ucred;
1047 		uip->ui_ucred = kauth_cred_proc_ref(p);
1492 	struct ubc_info *uip;
1500 		uip = vp->v_ubcinfo;
1502 		while (ISSET(uip->ui_flags, UI_MAPBUSY)) {
1503 			SET(uip->ui_flags, UI_MAPWAITING);
1504 			(void) msleep(&uip->ui_flags, &vp->v_lock,
1507 		SET(uip->ui_flags, UI_MAPBUSY);
1518 			if ( !ISSET(uip->ui_flags, UI_ISMAPPED))
1520 			SET(uip->ui_flags, (UI_WASMAPPED | UI_ISMAPPED));
1522 		CLR(uip->ui_flags, UI_MAPBUSY);
1524 		if (ISSET(uip->ui_flags, UI_MAPWAITING)) {
1525 			CLR(uip->ui_flags, UI_MAPWAITING);
1531 			wakeup(&uip->ui_flags);
1568 	struct ubc_info *uip;
1572 	        uip = vp->v_ubcinfo;
1686 	struct ubc_info *uip;
1695 		uip = vp->v_ubcinfo;
1697 		while (ISSET(uip->ui_flags, UI_MAPBUSY)) {
1698 			SET(uip->ui_flags, UI_MAPWAITING);
1699 			(void) msleep(&uip->ui_flags, &vp->v_lock,
1702 		SET(uip->ui_flags, UI_MAPBUSY);
1704 		if (ISSET(uip->ui_flags, UI_ISMAPPED)) {
1705 		        CLR(uip->ui_flags, UI_ISMAPPED);
1717 		CLR(uip->ui_flags, UI_MAPBUSY);
1718 		if (ISSET(uip->ui_flags, UI_MAPWAITING)) {
1719 			CLR(uip->ui_flags, UI_MAPWAITING);
1725 		        wakeup(&uip->ui_flags);
2434 	struct ubc_info		*uip;
2551 	uip = vp->v_ubcinfo;
2554 	for (oblob = uip->cs_blobs;
2607 	kr = memory_object_signed(uip->ui_control, TRUE);
2621 	blob->csb_next = uip->cs_blobs;
2622 	uip->cs_blobs = blob;
2691 	struct ubc_info	*uip;
2702 	uip = vp->v_ubcinfo;
2703 	for (blob = uip->cs_blobs;
2727 	struct ubc_info	*uip)
2731 	for (blob = uip->cs_blobs;
2749 	ubc_cs_validation_bitmap_deallocate( uip->ui_vnode );
2751 	uip->cs_blobs = NULL;
2758 	struct ubc_info	*uip;
2781 	uip = vp->v_ubcinfo;
2782 	blobs = uip->cs_blobs;
3015 	struct ubc_info *uip;
3022 		uip = vp->v_ubcinfo;
3024 		if ( uip->cs_valid_bitmap == NULL ) {
3025 			bitmap_size = stob(uip->ui_size);
3034 				uip->cs_valid_bitmap = (void*)target_bitmap;
3035 				uip->cs_valid_bitmap_size = bitmap_size;
3053 		struct ubc_info *uip = vp->v_ubcinfo;
3054 		char		*target_bitmap = uip->cs_valid_bitmap;
3063 			if ( byte > uip->cs_valid_bitmap_size ) {
3090 	struct ubc_info *uip;
3095 		uip = vp->v_ubcinfo;
3097 		if ( (target_bitmap = uip->cs_valid_bitmap) != NULL ) {
3098 			bitmap_size = uip->cs_valid_bitmap_size;
3100 			uip->cs_valid_bitmap = NULL;