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Ensure dsl_destroy_head() decrypts objsets #9021

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Jul 15, 2019
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Ensure dsl_destroy_head() decrypts objsets #9021

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7 changes: 4 additions & 3 deletions module/zfs/dsl_destroy.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1105,9 +1105,10 @@ dsl_destroy_head(const char *name)
/*
* Head deletion is processed in one txg on old pools;
* remove the objects from open context so that the txg sync
* is not too long.
* is not too long. This optimization can only work for
* encrypted datasets if the wrapping key is loaded.
*/
error = dmu_objset_own(name, DMU_OST_ANY, B_FALSE, B_FALSE,
error = dmu_objset_own(name, DMU_OST_ANY, B_FALSE, B_TRUE,
FTAG, &os);
if (error == 0) {
uint64_t prev_snap_txg =
Expand All @@ -1119,7 +1120,7 @@ dsl_destroy_head(const char *name)
(void) dmu_free_long_object(os, obj);
/* sync out all frees */
txg_wait_synced(dmu_objset_pool(os), 0);
dmu_objset_disown(os, B_FALSE, FTAG);
dmu_objset_disown(os, B_TRUE, FTAG);
}
}

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