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libdm: do not permit grouping regions with histograms

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Although not harmful do not allow a group containing regions with
histograms since it is not currently possible to present histogram
data aggregated for the group.
This commit is contained in:
Bryn M. Reeves 2016-07-06 11:10:23 +01:00
parent 1faa208067
commit 28658541da
1 changed files with 5 additions and 1 deletions
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6
libdm/libdm-stats.c
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@ -3767,7 +3767,11 @@ int dm_stats_create_group(struct dm_stats *dms, const char *members,
FMTu64, i, dms->regions[i].group_id);
goto bad;
}
if (dms->regions[i].bounds) {
log_error("Region ID %d: grouping regions with "
"histograms is not yet supported", i);
goto bad;
}
if (dms->regions[i].timescale == 1)
precise++;