ffs_hashalloc
bno = ffs_hashalloc(ip, cg, bpref, size, ffs_alloccg);
bno = ffs_hashalloc(ip, cg, bpref, request, ffs_alloccg);
ino = (ufsino_t)ffs_hashalloc(pip, cg, ipref, mode, ffs_nodealloccg);
daddr_t ffs_hashalloc(struct inode *, u_int, daddr_t, int,
bno = ffs_hashalloc(ip, cg, bpref, size, ffs_alloccg);
static daddr_t ffs_hashalloc(struct inode *, int, daddr_t, int,