_Checksum
uint16 _Checksum(const ip_header &header);
uint32 _Checksum(uint8* block) const;
tail->checksum = _Checksum(block);
uint32 _Checksum(uint8* block) const;
superblock.SetChecksum(_Checksum(&superblock));
if (superblock.Checksum() != _Checksum(&superblock)) {
if (fChecksumEnabled && !_Checksum((uint8*)header, false)) {
uint32 _Checksum(JournalSuperBlock* superblock);
bool _Checksum(uint8 *block, bool set = false);
|| _Checksum(*header) != 0) {
header.checksum = htons(_Checksum(header));