1774 		struct readahead_control *rac, bool backmost)  in z_erofs_pcluster_readmore()  argument
1782 		if (rac)  in z_erofs_pcluster_readmore()
1783 			end = headoffset + readahead_length(rac) - 1;  in z_erofs_pcluster_readmore()
1793 		if (rac) {  in z_erofs_pcluster_readmore()
1795 			readahead_expand(rac, headoffset, cur - headoffset);  in z_erofs_pcluster_readmore()
1853 static void z_erofs_readahead(struct readahead_control *rac)  in z_erofs_readahead()  argument
1855 	struct inode *const inode = rac->mapping->host;  in z_erofs_readahead()
1862 	f.headoffset = readahead_pos(rac);  in z_erofs_readahead()
1864 	z_erofs_pcluster_readmore(&f, rac, true);  in z_erofs_readahead()
1865 	nr_folios = readahead_count(rac);  in z_erofs_readahead()
1866 	trace_erofs_readpages(inode, readahead_index(rac), nr_folios, false);  in z_erofs_readahead()
1868 	while ((folio = readahead_folio(rac))) {  in z_erofs_readahead()
1883 	z_erofs_pcluster_readmore(&f, rac, false);  in z_erofs_readahead()