On 2/13/24 08:14, Han Zhou wrote:
> On Thu, Feb 8, 2024 at 1:50 PM <[email protected]> wrote:
>>
>> From: Numan Siddique <[email protected]>
>>
>> When the lflows in an lflow_ref are unlinked by calling
>> lflow_ref_unlink_lflows(lflow_ref), the dp_ref counter
>> for each lflow in the lflow_ref is decremented (by calling
>> dp_refcnt_release()),  but it is not incremented later
>> when the same lflow is linked back to the lflow_ref.
>>
>> This patch fixes it.
>>
>> Fixes: a623606052ea ("northd: Refactor lflow management into a separate
> module.")
>> Signed-off-by: Numan Siddique <[email protected]>
>> ---
>>  northd/lflow-mgr.c | 13 +++++++++----
>>  1 file changed, 9 insertions(+), 4 deletions(-)
>>
>> diff --git a/northd/lflow-mgr.c b/northd/lflow-mgr.c
>> index 61729e9039..df62cd6ab4 100644
>> --- a/northd/lflow-mgr.c
>> +++ b/northd/lflow-mgr.c
>> @@ -690,19 +690,24 @@ lflow_table_add_lflow(struct lflow_table
> *lflow_table,
>>              if (lrn->dpgrp_lflow) {
>>                  lrn->dpgrp_bitmap = bitmap_clone(dp_bitmap,
> dp_bitmap_len);
>>                  lrn->dpgrp_bitmap_len = dp_bitmap_len;
>> +            } else {
>> +                lrn->dp_index = od->index;
>> +            }
>> +            ovs_list_insert(&lflow->referenced_by, &lrn->ref_list_node);
>> +            hmap_insert(&lflow_ref->lflow_ref_nodes, &lrn->ref_node,
> hash);
>> +        }
>>
>> +        if (!lrn->linked) {
>> +            if (lrn->dpgrp_lflow) {
>> +                ovs_assert(lrn->dpgrp_bitmap_len == dp_bitmap_len);
>>                  size_t index;
>>                  BITMAP_FOR_EACH_1 (index, dp_bitmap_len, dp_bitmap) {
>>                      dp_refcnt_use(&lflow->dp_refcnts_map, index);
>>                  }
>>              } else {
>> -                lrn->dp_index = od->index;
>>                  dp_refcnt_use(&lflow->dp_refcnts_map, lrn->dp_index);
>>              }
>> -            ovs_list_insert(&lflow->referenced_by, &lrn->ref_list_node);
>> -            hmap_insert(&lflow_ref->lflow_ref_nodes, &lrn->ref_node,
> hash);
>>          }
>> -
>>          lrn->linked = true;
>>      }
>>
>> --
>> 2.43.0
>>
>> _______________________________________________
>> dev mailing list
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>> https://mail.openvswitch.org/mailman/listinfo/ovs-dev
> 
> Thanks Numan for the fix.
> Acked-by: Han Zhou <[email protected]>

Looks good to me too:

Acked-by: Dumitru Ceara <[email protected]>

Thanks,
Dumitru

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