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OpenZFS 7254 - ztest failed assertion in ztest_dataset_dirobj_verify: dirobjs + 1 == usedobjs

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Authored by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Steve Gonczi <steve.gonczi@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/7254
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/c166b69
Closes #5670
This commit is contained in:
George Melikov
2017-01-27 22:43:42 +03:00
committed by Brian Behlendorf
parent 687e612f9a
commit cc9bb3e58e
9 changed files with 89 additions and 15 deletions
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module/zfs/dsl_destroy.c
+6
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@@ -255,7 +255,9 @@ dsl_destroy_snapshot_sync_impl(dsl_dataset_t *ds, boolean_t defer, dmu_tx_t *tx)
ASSERT(RRW_WRITE_HELD(&dp->dp_config_rwlock));
rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
ASSERT3U(dsl_dataset_phys(ds)->ds_bp.blk_birth, <=, tx->tx_txg);
rrw_exit(&ds->ds_bp_rwlock, FTAG);
ASSERT(refcount_is_zero(&ds->ds_longholds));
if (defer &&
@@ -728,7 +730,9 @@ dsl_destroy_head_sync_impl(dsl_dataset_t *ds, dmu_tx_t *tx)
ASSERT3U(dsl_dataset_phys(ds)->ds_num_children, <=, 1);
ASSERT(ds->ds_prev == NULL ||
dsl_dataset_phys(ds->ds_prev)->ds_next_snap_obj != ds->ds_object);
rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
ASSERT3U(dsl_dataset_phys(ds)->ds_bp.blk_birth, <=, tx->tx_txg);
rrw_exit(&ds->ds_bp_rwlock, FTAG);
ASSERT(RRW_WRITE_HELD(&dp->dp_config_rwlock));
/* We need to log before removing it from the namespace. */
@@ -819,10 +823,12 @@ dsl_destroy_head_sync_impl(dsl_dataset_t *ds, dmu_tx_t *tx)
ASSERT(!DS_UNIQUE_IS_ACCURATE(ds) ||
dsl_dataset_phys(ds)->ds_unique_bytes == used);
rrw_enter(&ds->ds_bp_rwlock, RW_READER, FTAG);
bptree_add(mos, dp->dp_bptree_obj,
&dsl_dataset_phys(ds)->ds_bp,
dsl_dataset_phys(ds)->ds_prev_snap_txg,
used, comp, uncomp, tx);
rrw_exit(&ds->ds_bp_rwlock, FTAG);
dsl_dir_diduse_space(ds->ds_dir, DD_USED_HEAD,
-used, -comp, -uncomp, tx);
dsl_dir_diduse_space(dp->dp_free_dir, DD_USED_HEAD,