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dmstats: add stats_name field

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To allow the names used to describe statistics report objects to
change (for e.g to support groups and region and group aliases)
introduce a new "stats_name" field that evaluates to the correct
name for the object being reported.
This commit is contained in:
Bryn M. Reeves 2016-06-13 14:28:37 +01:00
parent b55daa28e8
commit 402d840aa7
1 changed files with 14 additions and 0 deletions
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14
tools/dmsetup.c
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@ -3462,6 +3462,19 @@ static int _dm_stats_aux_data_disp(struct dm_report *rh,
return dm_report_field_string(rh, field, (const char * const *) &aux_data);
}
static int _dm_stats_name_disp(struct dm_report *rh,
struct dm_pool *mem __attribute__((unused)),
struct dm_report_field *field, const void *data,
void *private __attribute__((unused)))
{
const struct dm_stats *dms = (const struct dm_stats *) data;
const char *stats_name;
if (!(stats_name = dm_stats_get_alias(dms, DM_STATS_REGION_CURRENT)))
return_0;
return dm_report_field_string(rh, field, (const char * const *) &stats_name);
}
static int _dm_stats_precise_disp(struct dm_report *rh,
struct dm_pool *mem __attribute__((unused)),
struct dm_report_field *field, const void *data,
@ -4229,6 +4242,7 @@ FIELD_F(STATS_META, STR, "Precise", 7, dm_stats_precise, "precise", "Set if nano
FIELD_F(STATS_META, STR, "#Bins", 9, dm_stats_hist_bins, "hist_bins", "The number of histogram bins configured.")
FIELD_F(STATS_META, STR, "Histogram Bounds", 16, dm_stats_hist_bounds, "hist_bounds", "Latency histogram bin boundaries.")
FIELD_F(STATS_META, STR, "Histogram Ranges", 16, dm_stats_hist_ranges, "hist_ranges", "Latency histogram bin ranges.")
FIELD_F(STATS, STR, "Name", 16, dm_stats_name, "stats_name", "Stats name of current row.")
{0, 0, 0, 0, "", "", NULL, NULL},
/* *INDENT-ON* */
};