Symbol: ufs_fiodirectio
usr/src/uts/common/fs/ufs/ufs_vnops.c
1715
return (ufs_fiodirectio(vp, (int)arg, cr));
usr/src/uts/common/sys/fs/ufs_filio.h
99
extern int ufs_fiodirectio(struct vnode *, int, struct cred *);