483         int block_index, refcount;  in update_refcount()  local
520         refcount = be16_to_cpu(s->refcount_block_cache[block_index]);  in update_refcount()
521         refcount += addend;  in update_refcount()
522         if (refcount < 0 || refcount > 0xffff) {  in update_refcount()
526         if (refcount == 0 && cluster_index < s->free_cluster_index) {  in update_refcount()
529         s->refcount_block_cache[block_index] = cpu_to_be16(refcount);  in update_refcount()
590     int i, nb_clusters, refcount;  in alloc_clusters_noref()  local
596         refcount = get_refcount(bs, next_cluster_index);  in alloc_clusters_noref()
598         if (refcount < 0) {  in alloc_clusters_noref()
599             return refcount;  in alloc_clusters_noref()
600         } else if (refcount != 0) {  in alloc_clusters_noref()
729     int refcount;  in qcow2_create_refcount_update()  local
738         refcount = be16_to_cpu(*p);  in qcow2_create_refcount_update()
739         refcount++;  in qcow2_create_refcount_update()
740         *p = cpu_to_be16(refcount);  in qcow2_create_refcount_update()
751     int l2_size, i, j, l1_modified, l2_modified, nb_csectors, refcount;  in qcow2_update_snapshot_refcount()  local
806                         refcount = 2;  in qcow2_update_snapshot_refcount()
809 …                         refcount = update_cluster_refcount(bs, offset >> s->cluster_bits, addend);  in qcow2_update_snapshot_refcount()
811                             refcount = get_refcount(bs, offset >> s->cluster_bits);  in qcow2_update_snapshot_refcount()
814                         if (refcount < 0) {  in qcow2_update_snapshot_refcount()
819                     if (refcount == 1) {  in qcow2_update_snapshot_refcount()
835                 refcount = update_cluster_refcount(bs, l2_offset >> s->cluster_bits, addend);  in qcow2_update_snapshot_refcount()
837                 refcount = get_refcount(bs, l2_offset >> s->cluster_bits);  in qcow2_update_snapshot_refcount()
839             if (refcount < 0) {  in qcow2_update_snapshot_refcount()
841             } else if (refcount == 1) {  in qcow2_update_snapshot_refcount()
940     int i, l2_size, nb_csectors, refcount;  in check_refcounts_l2()  local
974                     refcount = get_refcount(bs, offset >> s->cluster_bits);  in check_refcounts_l2()
975                     if (refcount < 0) {  in check_refcounts_l2()
977                             PRIx64 ": %s\n", entry, strerror(-refcount));  in check_refcounts_l2()
980                     if ((refcount == 1) != ((entry & QCOW_OFLAG_COPIED) != 0)) {  in check_refcounts_l2()
982                             PRIx64 " refcount=%d\n", entry, refcount);  in check_refcounts_l2()
1028     int i, refcount, ret;  in check_refcounts_l1()  local
1054                 refcount = get_refcount(bs, (l2_offset & ~QCOW_OFLAG_COPIED)  in check_refcounts_l1()
1056                 if (refcount < 0) {  in check_refcounts_l1()
1058                         PRIx64 ": %s\n", l2_offset, strerror(-refcount));  in check_refcounts_l1()
1061                 if ((refcount == 1) != ((l2_offset & QCOW_OFLAG_COPIED) != 0)) {  in check_refcounts_l1()
1063                         " refcount=%d\n", l2_offset, refcount);  in check_refcounts_l1()