alblk_t
#define AB_ALLEAF(abp) ((alleaf_t *)((caddr_t)(abp) + sizeof(alblk_t)))
#define AB_ALNODE(abp) ((alnode_t *)((caddr_t)(abp) + sizeof(alblk_t)))
alblk_t fn_ab;
alblk_t as_ab;
asp->as_ab.ab_freeoff = sizeof(alblk_t);
alblk_t *abp;
alblk_t *nabp;
bcopy((caddr_t)abp + sizeof(alblk_t) + n1 * sz,
(caddr_t)nabp + sizeof(alblk_t), n2 * sz);
alblk_t *ab0p;
alblk_t *ab1p;
hpfs_alblk2alsec(struct hpfsmount *hpmp, alblk_t *abp, alsec_t **naspp,
alblk_t *nabp;
bcopy (abp, nabp, sizeof(alblk_t) + sz * abp->ab_busycnt);
alblk_t *rabp;
rabp->ab_freeoff = sizeof(alblk_t);
rabp->ab_freeoff = sizeof(alblk_t);
int hpfs_alblk2alsec (struct hpfsmount *, alblk_t *, alsec_t **,
alblk_t *rabp;
alblk_t * abp;
hpfs_truncatealblk(struct hpfsmount *hpmp, alblk_t *abp, lsn_t bn, int *resp)
hp->h_fn.fn_ab.ab_freeoff = sizeof(alblk_t);
int hpfs_truncatealblk (struct hpfsmount *, alblk_t *, lsn_t,int *);