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OpenZFS 9847 - leaking dd_clones (DMU_OT_DSL_CLONES) objects (#7979)

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OpenZFS 9847 - leaking dd_clones (DMU_OT_DSL_CLONES) objects

We're leaking the dd_clones objects in dsl_dir_destroy_sync.  This bug
appears to have been around forever.  Thankfully the amount of space
typically involved is tiny.

In addition this adds a mechanism in ZDB to find objects in the MOS
which are leaked (not referenced anywhere).

Porting notes:
* Added dd_crypto_obj to ZDB MOS object leak tracking

Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: George Wilson <george.wilson@delphix.com>
Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: Matthew Ahrens <mahrens@delphix.com>

OpenZFS-issue: https://illumos.org/issues/9847
Closes #7979
This commit is contained in:
Matthew Ahrens
2018-10-12 11:28:26 -07:00
committed by GitHub
parent 27f80e85c2
commit 0aa5916a30
3 changed files with 253 additions and 6 deletions
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module/zfs/vdev_indirect_mapping.c
-1
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@@ -282,7 +282,6 @@ vdev_indirect_mapping_entry_for_offset_or_next(vdev_indirect_mapping_t *vim,
B_TRUE));
}
void
vdev_indirect_mapping_close(vdev_indirect_mapping_t *vim)
{