HelenOS sources

MFS_SUPERBLOCK    587 uspace/app/mkmfs/mkmfs.c 	rc = write_block(MFS_SUPERBLOCK, 1, sb);
MFS_SUPERBLOCK    620 uspace/app/mkmfs/mkmfs.c 	rc = block_write_direct(service_id, MFS_SUPERBLOCK << 1, 1 << 1, sb);
MFS_SUPERBLOCK    181 uspace/srv/fs/mfs/mfs_ops.c 	rc = block_read_direct(service_id, MFS_SUPERBLOCK << 1, 2, sb);