ufs_fbwrite
err = ufs_fbwrite(slotp->fbp, tdp);
err = ufs_fbwrite(fbp, dp);
err = ufs_fbwrite(slotp->fbp, tdp);
(void) ufs_fbwrite(slotp->fbp, tdp);
err = ufs_fbwrite(fbp, ip);
err = ufs_fbwrite(slot.fbp, dp);
err = ufs_fbwrite(fbp, ip);
extern int ufs_fbwrite(struct fbuf *, struct inode *);