Symbol: ufs_fioisbusy
usr/src/uts/common/fs/ufs/ufs_vnops.c
1711
error = ufs_fioisbusy(vp, (int *)arg, cr);
usr/src/uts/common/sys/fs/ufs_filio.h
98
extern int ufs_fioisbusy(struct vnode *, int *, struct cred *);