o_direct 223 fs/ext4/file.c int o_direct = iocb->ki_flags & IOCB_DIRECT; o_direct 251 fs/ext4/file.c if (o_direct && ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS) && o_direct 260 fs/ext4/file.c if (o_direct && !unaligned_aio) {