DEFINE_READAHEAD
DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, page_idx);
DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, index);
DEFINE_READAHEAD(ractl, file, ra, mapping, index);
DEFINE_READAHEAD(ractl, file, ra, mapping, folio->index);
DEFINE_READAHEAD(ractl, file, &file->f_ra, mapping, folio->index);
DEFINE_READAHEAD(ractl, filp, &filp->f_ra, mapping, index);
DEFINE_READAHEAD(ractl, file, ra, mapping, vmf->pgoff);
DEFINE_READAHEAD(ractl, file, ra, file->f_mapping, vmf->pgoff);
DEFINE_READAHEAD(ractl, file, &file->f_ra, mapping, index);