fs/erofs/zmap.c

107 	const unsigned int lclusterbits = vi->z_lclusterbits;
116 	if (lcn >= totalidx || lclusterbits > 14)
142 	if (1 << amortizedshift == 4 && lclusterbits <= 14)
144 	else if (1 << amortizedshift == 2 && lclusterbits <= 12)
156 	lobits = max(lclusterbits, ilog2(Z_EROFS_LI_D0_CBLKCNT) + 1U);
165 		m->clusterofs = 1 << lclusterbits;
265 	const unsigned int lclusterbits = vi->z_lclusterbits;
282 			m->map->m_la = (lcn << lclusterbits) | m->clusterofs;
352 	unsigned int lclusterbits = vi->z_lclusterbits;
353 	u64 lcn = m->lcn, headlcn = map->m_la >> lclusterbits;
358 		if ((lcn << lclusterbits) >= inode->i_size) {
380 	map->m_llen = (lcn << lclusterbits) + m->clusterofs - map->m_la;
391 	unsigned int lclusterbits = vi->z_lclusterbits;
410 	initial_lcn = ofs >> lclusterbits;
411 	endoff = ofs & ((1 << lclusterbits) - 1);
420 	end = (m.lcn + 1ULL) << lclusterbits;
424 		map->m_la = (m.lcn << lclusterbits) | m.clusterofs;
441 			end = (m.lcn << lclusterbits) | m.clusterofs;