func: static int64_t coroutine_fn parallels_co_get_block_status(BlockDriverState *bs,
  
          int64_t sector_num, int nb_sectors, int *pnum)
  
  {
  
      BDRVParallelsState *s = bs->opaque;
  
      int64_t offset;
  
  
  
      qemu_co_mutex_lock(&s->lock);
  
      offset = block_status(s, sector_num, nb_sectors, pnum);
  
      qemu_co_mutex_unlock(&s->lock);
  
  
  
      if (offset < 0) {
  
          return 0;
  
      }
  
  
  
      return (offset << BDRV_SECTOR_BITS) |
  
          BDRV_BLOCK_DATA | BDRV_BLOCK_OFFSET_VALID;
  
  }
  