On 28-03-22, 15:43, Xiaomeng Tong wrote: > No. the conditon to call opp_migrate_dentry(opp_dev, opp_table); is: > if (!list_is_singular(&opp_table->dev_list)), > > while list_is_singlular is: !list_empty(head) && (head->next == head->prev); > > so the condition is: list_empty(head) || (head->next != head->prev) > > if the list is empty, the bug can be triggered. List can't be empty here by design. It will be a huge bug in that case, which should lead to crash somewhere. -- viresh
