885 	if (bp->b_shadow_ref && bp->b_data_ref == 0 && external_storage == 0) {  in buf_create_shadow_internal()
886 …panic("buf_create_shadow: %p is in the private state (%d, %d)", bp, bp->b_shadow_ref, bp->b_data_r…  in buf_create_shadow_internal()
923 		bp->b_shadow_ref++;  in buf_create_shadow_internal()
952 	KERNEL_DEBUG(0xbbbbc000 | DBG_FUNC_END, bp, bp->b_shadow_ref, 0, io_bp, 0);  in buf_create_shadow_internal()
966 	KERNEL_DEBUG(0xbbbbc004 | DBG_FUNC_START, bp, bp->b_shadow_ref, 0, 0, 0);  in buf_make_private()
968 	if (bp->b_shadow_ref == 0 || bp->b_data_ref == 0 || ISSET(bp->b_lflags, BL_SHADOW)) {  in buf_make_private()
969 		KERNEL_DEBUG(0xbbbbc004 | DBG_FUNC_END, bp, bp->b_shadow_ref, 0, EINVAL, 0);  in buf_make_private()
991 	if (ds_bp && (bp->b_data_ref == 0 || bp->b_shadow_ref == 0)) {  in buf_make_private()
1000 		KERNEL_DEBUG(0xbbbbc004 | DBG_FUNC_END, bp, bp->b_shadow_ref, 0, EINVAL, 0);  in buf_make_private()
1015 	KERNEL_DEBUG(0xbbbbc004 | DBG_FUNC_END, bp, bp->b_shadow_ref, 0, 0, 0);  in buf_make_private()
2027 		if (bp->b_shadow_ref == 0) {  in bremfree_locked()
2611 	KERNEL_DEBUG(0xbbbbc008 | DBG_FUNC_START, bp, bp_head, bp_head->b_shadow_ref, 0, 0);  in buf_brelse_shadow()
2613 	bp_head->b_shadow_ref--;  in buf_brelse_shadow()
2642 	if (bp_head->b_shadow_ref == 0 && bp_head->b_shadow) {  in buf_brelse_shadow()
2645 	if (bp_head->b_shadow_ref && bp_head->b_shadow == 0) {  in buf_brelse_shadow()
2649 	if (bp_head->b_shadow_ref == 0) {  in buf_brelse_shadow()
2850 			if (bp->b_shadow_ref) {  in buf_brelse()
2863 		if (bp->b_shadow_ref) {  in buf_brelse()
2918 		if (bp->b_shadow_ref == 0) {  in buf_brelse()
3032 		if (bp->b_shadow_ref == 0) {  in buf_wait_for_shadow_io()