Symbol: ufs_allocsp
usr/src/uts/common/fs/ufs/ufs_vnops.c
4360
error = ufs_allocsp(vp, bfp, cr);
usr/src/uts/common/sys/fs/ufs_inode.h
876
extern int ufs_allocsp(struct vnode *, struct flock64 *, cred_t *);