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zhack: Add 'feature enable' force option

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Add a force option to allow zhack to add features which are
part of the known set of supported features.  By default
this is disabled.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #3878
This commit is contained in:
Brian Behlendorf 2015-10-01 16:37:02 -07:00
parent 8302528617
commit ebecfcd699
1 changed files with 4 additions and 2 deletions
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6
cmd/zhack/zhack.c
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@ -357,8 +357,10 @@ zhack_do_feature_enable(int argc, char **argv)
zhack_spa_open(target, B_FALSE, FTAG, &spa); zhack_spa_open(target, B_FALSE, FTAG, &spa);
mos = spa->spa_meta_objset; mos = spa->spa_meta_objset;
if (zfeature_is_supported(feature.fi_guid)) if (zfeature_is_supported(feature.fi_guid) && (g_force == B_FALSE))
fatal(spa, FTAG, "'%s' is a real feature, will not enable"); fatal(spa, FTAG,
"'%s' is a real feature, will not enable\n"
"provide the -f option to force override", feature.fi_guid);
if (0 == zap_contains(mos, spa->spa_feat_desc_obj, feature.fi_guid)) if (0 == zap_contains(mos, spa->spa_feat_desc_obj, feature.fi_guid))
fatal(spa, FTAG, "feature already enabled: %s", fatal(spa, FTAG, "feature already enabled: %s",
feature.fi_guid); feature.fi_guid);