dm_histogram_bounds_destroy
dm_histogram_bounds_from_string
dm_histogram_bounds_from_uint64
dm_histogram_get_bin_count
dm_histogram_get_bin_lower
dm_histogram_get_bin_percent
dm_histogram_get_bin_upper
dm_histogram_get_bin_width
dm_histogram_get_nr_bins
dm_histogram_get_sum
dm_histogram_to_string
dm_stats_create_region
dm_stats_driver_supports_histogram
dm_stats_get_histogram
dm_stats_get_region_nr_histogram_bins
