ud_fbwrite
err = ud_fbwrite(fbp, ip);
if (error = ud_fbwrite(fbp, dp)) {
if (error = ud_fbwrite(fbp, dp)) {
if (error = ud_fbwrite(fbp, dp)) {
err = ud_fbwrite(fbp, dp);
error = ud_fbwrite(lfbp, dp);
error = ud_fbwrite(slot->fbp, dp);
error = ud_fbwrite(lfbp, dp);
if ((error = ud_fbwrite(slot->fbp, dp)) != 0) {
int32_t ud_fbwrite(struct fbuf *, struct ud_inode *);