28 static void  qcow_free_clusters(struct qcow *q, u64 clust_start, u64 size);
293 	u64 clust_start;  in qcow1_read_cluster()  local
331 	clust_start = be64_to_cpu(l2t->table[l2_idx]);  in qcow1_read_cluster()
332 	if (clust_start & QCOW1_OFLAG_COMPRESSED) {  in qcow1_read_cluster()
333 		coffset	= clust_start & q->cluster_offset_mask;  in qcow1_read_cluster()
334 		csize	= clust_start >> (63 - q->header->cluster_bits);  in qcow1_read_cluster()
348 		if (!clust_start)  in qcow1_read_cluster()
354 				  clust_start + clust_offset) < 0)  in qcow1_read_cluster()
378 	u64 clust_start;  in qcow2_read_cluster()  local
420 	clust_start = be64_to_cpu(l2t->table[l2_idx]);  in qcow2_read_cluster()
421 	if (clust_start & QCOW2_OFLAG_COMPRESSED) {  in qcow2_read_cluster()
422 		coffset = clust_start & q->cluster_offset_mask;  in qcow2_read_cluster()
423 		nb_csectors = ((clust_start >> q->csize_shift)  in qcow2_read_cluster()
443 		clust_start &= QCOW2_OFFSET_MASK;  in qcow2_read_cluster()
444 		if (!clust_start)  in qcow2_read_cluster()
450 				  clust_start + clust_offset) < 0)  in qcow2_read_cluster()
822 static void  qcow_free_clusters(struct qcow *q, u64 clust_start, u64 size)  in qcow_free_clusters()  argument
827 	start = clust_start & ~(q->cluster_size - 1);  in qcow_free_clusters()
828 	end = (clust_start + size - 1) & ~(q->cluster_size - 1);  in qcow_free_clusters()
978 	u64 clust_start;  in qcow_write_cluster()  local
1001 	clust_start = be64_to_cpu(l2t->table[l2t_idx]);  in qcow_write_cluster()
1002 	clust_flags = clust_start & QCOW2_OFLAGS_MASK;  in qcow_write_cluster()
1004 	clust_start &= QCOW2_OFFSET_MASK;  in qcow_write_cluster()
1015 		if (clust_start) {  in qcow_write_cluster()
1046 			size = ((clust_start >> q->csize_shift) &  in qcow_write_cluster()
1049 			clust_start &= q->cluster_offset_mask;  in qcow_write_cluster()
1050 			clust_start &= ~511;  in qcow_write_cluster()
1052 			qcow_free_clusters(q, clust_start, size);  in qcow_write_cluster()
1053 		} else if (clust_start)  in qcow_write_cluster()
1054 			qcow_free_clusters(q, clust_start, q->cluster_size);  in qcow_write_cluster()
1059 			clust_start + clust_off) < 0)  in qcow_write_cluster()