13 	unsigned long lcn;  member
24 				      unsigned long lcn)  in z_erofs_load_full_lcluster()  argument
30 			lcn * sizeof(struct z_erofs_lcluster_index);  in z_erofs_load_full_lcluster()
37 	m->lcn = lcn;  in z_erofs_load_full_lcluster()
101 					 unsigned long lcn, bool lookahead)  in z_erofs_load_compact_lcluster()  argument
116 	if (lcn >= totalidx || lclusterbits > 14)  in z_erofs_load_compact_lcluster()
119 	m->lcn = lcn;  in z_erofs_load_compact_lcluster()
129 	if (lcn >= compacted_4b_initial) {  in z_erofs_load_compact_lcluster()
131 		lcn -= compacted_4b_initial;  in z_erofs_load_compact_lcluster()
132 		if (lcn < compacted_2b) {  in z_erofs_load_compact_lcluster()
136 			lcn -= compacted_2b;  in z_erofs_load_compact_lcluster()
139 	pos += lcn * (1 << amortizedshift);  in z_erofs_load_compact_lcluster()
241 					   unsigned int lcn, bool lookahead)  in z_erofs_load_lcluster_from_disk()  argument
245 		return z_erofs_load_full_lcluster(m, lcn);  in z_erofs_load_lcluster_from_disk()
247 		return z_erofs_load_compact_lcluster(m, lcn, lookahead);  in z_erofs_load_lcluster_from_disk()
260 	while (m->lcn >= lookback_distance) {  in z_erofs_extent_lookback()
261 		unsigned long lcn = m->lcn - lookback_distance;  in z_erofs_extent_lookback()  local
264 		err = z_erofs_load_lcluster_from_disk(m, lcn, false);  in z_erofs_extent_lookback()
278 			m->map->m_la = (lcn << lclusterbits) | m->clusterofs;  in z_erofs_extent_lookback()
282 				  m->type, lcn, vi->nid);  in z_erofs_extent_lookback()
289 		  lookback_distance, m->lcn, vi->nid);  in z_erofs_extent_lookback()
302 	unsigned long lcn = m->lcn + 1;  in z_erofs_get_extent_compressedlen()  local
311 	    (lcn << vi->z_logical_clusterbits) >= inode->i_size)  in z_erofs_get_extent_compressedlen()
317 	err = z_erofs_load_lcluster_from_disk(m, lcn, false);  in z_erofs_get_extent_compressedlen()
329 	DBG_BUGON(lcn == initial_lcn &&  in z_erofs_get_extent_compressedlen()
349 		erofs_err(sb, "cannot found CBLKCNT @ lcn %lu of nid %llu", lcn,  in z_erofs_get_extent_compressedlen()
358 	erofs_err(sb, "bogus CBLKCNT @ lcn %lu of nid %llu", lcn, vi->nid);  in z_erofs_get_extent_compressedlen()
369 	u64 lcn = m->lcn, headlcn = map->m_la >> lclusterbits;  in z_erofs_get_extent_decompressedlen()  local
374 		if ((lcn << lclusterbits) >= inode->i_size) {  in z_erofs_get_extent_decompressedlen()
379 		err = z_erofs_load_lcluster_from_disk(m, lcn, true);  in z_erofs_get_extent_decompressedlen()
392 			if (lcn != headlcn)  in z_erofs_get_extent_decompressedlen()
397 				  m->type, lcn, vi->nid);  in z_erofs_get_extent_decompressedlen()
401 		lcn += m->delta[1];  in z_erofs_get_extent_decompressedlen()
403 	map->m_llen = (lcn << lclusterbits) + m->clusterofs - map->m_la;  in z_erofs_get_extent_decompressedlen()
435 	end = (m.lcn + 1ULL) << lclusterbits;  in z_erofs_do_map_blocks()
443 			map->m_la = (m.lcn << lclusterbits) | m.clusterofs;  in z_erofs_do_map_blocks()
454 		if (!m.lcn) {  in z_erofs_do_map_blocks()
461 		end = (m.lcn << lclusterbits) | m.clusterofs;  in z_erofs_do_map_blocks()
483 		vi->z_tailextent_headlcn = m.lcn;  in z_erofs_do_map_blocks()
488 	if (ztailpacking && m.lcn == vi->z_tailextent_headlcn) {  in z_erofs_do_map_blocks()
492 	} else if (fragment && m.lcn == vi->z_tailextent_headlcn) {  in z_erofs_do_map_blocks()