taglinefilesource code
EXT2_DIND_BLOCK186fs/ext2/fsync.cinode->u.ext2_i.i_data+EXT2_DIND_BLOCK, 
EXT2_DIND_BLOCK155fs/ext2/inode.ci = inode_bmap (inode, EXT2_DIND_BLOCK);
EXT2_DIND_BLOCK407fs/ext2/inode.cbh = inode_getblk (inode, EXT2_DIND_BLOCK, create, b, err);
EXT2_DIND_BLOCK457fs/ext2/inode.cbh = inode_getblk (inode, EXT2_DIND_BLOCK, create, b, &err);
EXT2_DIND_BLOCK336fs/ext2/truncate.c(u32 *) &inode->u.ext2_i.i_data[EXT2_DIND_BLOCK]);
EXT2_DIND_BLOCK170include/linux/ext2_fs.h#define  EXT2_TIND_BLOCK      (EXT2_DIND_BLOCK + 1)