SUPERBLOCK_MAGIC
if (le64_to_cpu(sb->magic) != SUPERBLOCK_MAGIC) {
(unsigned long long)SUPERBLOCK_MAGIC);
sb->magic = cpu_to_le64(SUPERBLOCK_MAGIC);
if (le64_to_cpu(disk->magic) != SUPERBLOCK_MAGIC) {
(unsigned long long) SUPERBLOCK_MAGIC);
disk->magic = cpu_to_le64(SUPERBLOCK_MAGIC);