DH_BLKOFFSHIFT     79 ufs/ufs/dirhash.h #define DH_NBLKOFF	(1 << DH_BLKOFFSHIFT)
DH_BLKOFFSHIFT     83 ufs/ufs/dirhash.h     ((dh)->dh_hash[(slot) >> DH_BLKOFFSHIFT][(slot) & DH_BLKOFFMASK])