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Allow printing special vdev metaslab groups

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Sometimes, we'd like to know info about the metaslab groups
on special vdevs too. So let's make -MM do something useful.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12750
This commit is contained in:
Rich Ercolani
2021-11-30 13:26:45 -05:00
committed by GitHub
parent 34eef3e9a7
commit c5ccbbdcf6
2 changed files with 8 additions and 8 deletions
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cmd/zdb/zdb.c
+5 -3
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@@ -1734,10 +1734,11 @@ print_vdev_metaslab_header(vdev_t *vd)
}
static void
dump_metaslab_groups(spa_t *spa)
dump_metaslab_groups(spa_t *spa, boolean_t show_special)
{
vdev_t *rvd = spa->spa_root_vdev;
metaslab_class_t *mc = spa_normal_class(spa);
metaslab_class_t *smc = spa_special_class(spa);
uint64_t fragmentation;
metaslab_class_histogram_verify(mc);
@@ -1746,7 +1747,8 @@ dump_metaslab_groups(spa_t *spa)
vdev_t *tvd = rvd->vdev_child[c];
metaslab_group_t *mg = tvd->vdev_mg;
if (mg == NULL || mg->mg_class != mc)
if (mg == NULL || (mg->mg_class != mc &&
(!show_special || mg->mg_class != smc)))
continue;
metaslab_group_histogram_verify(mg);
@@ -7673,7 +7675,7 @@ dump_zpool(spa_t *spa)
if (dump_opt['d'] > 2 || dump_opt['m'])
dump_metaslabs(spa);
if (dump_opt['M'])
dump_metaslab_groups(spa);
dump_metaslab_groups(spa, dump_opt['M'] > 1);
if (dump_opt['d'] > 2 || dump_opt['m']) {
dump_log_spacemaps(spa);
dump_log_spacemap_obsolete_stats(spa);