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Backport fix for vendor issue #3085

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3085 zfs diff panics, then panics in a loop on booting

References:
  https://www.illumos.org/issues/3085

PR:		kern/170763
Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate (r13772)
MFC after:	1 week
This commit is contained in:
Martin Matuska 2012-08-19 09:59:41 +00:00
parent ab16a5bd08
commit bb9b1f7a8b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=239389
1 changed files with 5 additions and 4 deletions
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9
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_dataset.c
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@ -3969,6 +3969,11 @@ dsl_dataset_user_release_sync(void *arg1, void *tag, dmu_tx_t *tx)
VERIFY(error == 0 || error == ENOENT);
zapobj = ds->ds_phys->ds_userrefs_obj;
VERIFY(0 == zap_remove(mos, zapobj, ra->htag, tx));
spa_history_log_internal(LOG_DS_USER_RELEASE,
dp->dp_spa, tx, "<%s> %lld dataset = %llu",
ra->htag, (longlong_t)refs, dsobj);
if (ds->ds_userrefs == 0 && ds->ds_phys->ds_num_children == 1 &&
DS_IS_DEFER_DESTROY(ds)) {
struct dsl_ds_destroyarg dsda = {0};
@ -3979,10 +3984,6 @@ dsl_dataset_user_release_sync(void *arg1, void *tag, dmu_tx_t *tx)
/* We already did the destroy_check */
dsl_dataset_destroy_sync(&dsda, tag, tx);
}
spa_history_log_internal(LOG_DS_USER_RELEASE,
dp->dp_spa, tx, "<%s> %lld dataset = %llu",
ra->htag, (longlong_t)refs, dsobj);
}
static int