lfs_sb_cksum
extern u_int32_t lfs_sb_cksum(struct dlfs *);
u_int32_t lfs_sb_cksum(struct lfs *);
checksum = lfs_sb_cksum(fs);
lfs_sb_setcksum(fs, lfs_sb_cksum(fs));
uint32_t lfs_sb_cksum(struct lfs *);
lfs_sb_setcksum(fs, lfs_sb_cksum(fs));
if (lfs_sb_cksum(sbi->lfs) != lfs_sb_getcksum(sbi->lfs)) {
uint32_t lfs_sb_cksum(struct lfs *);
lfs_sb_setcksum(fs, lfs_sb_cksum(fs));