nilfs_mdt_submit_block 175 fs/nilfs2/mdt.c err = nilfs_mdt_submit_block(inode, block, REQ_OP_READ, 0, &first_bh); nilfs_mdt_submit_block 185 fs/nilfs2/mdt.c err = nilfs_mdt_submit_block(inode, blkoff, REQ_OP_READ,