diff options
Diffstat (limited to 'module/zfs/dsl_dataset.c')
| -rw-r--r-- | module/zfs/dsl_dataset.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/module/zfs/dsl_dataset.c b/module/zfs/dsl_dataset.c index a5310edce..de2703868 100644 --- a/module/zfs/dsl_dataset.c +++ b/module/zfs/dsl_dataset.c @@ -354,8 +354,19 @@ dsl_dataset_snap_remove(dsl_dataset_t *ds, const char *name, dmu_tx_t *tx, boolean_t dsl_dataset_try_add_ref(dsl_pool_t *dp, dsl_dataset_t *ds, void *tag) { - return (dmu_buf_try_add_ref(ds->ds_dbuf, dp->dp_meta_objset, - ds->ds_object, DMU_BONUS_BLKID, tag)); + dmu_buf_t *dbuf = ds->ds_dbuf; + boolean_t result = B_FALSE; + + if (dbuf != NULL && dmu_buf_try_add_ref(dbuf, dp->dp_meta_objset, + ds->ds_object, DMU_BONUS_BLKID, tag)) { + + if (ds == dmu_buf_get_user(dbuf)) + result = B_TRUE; + else + dmu_buf_rele(dbuf, tag); + } + + return (result); } int |