On Thu, 2017-10-19 at 13:33 -0700, Matthew Wilcox wrote: > For example, the page lock is not annotatable with lockdep -- we return > to userspace with it held, for heaven's sake! So it is quite easy for > someone not familiar with the MM locking hierarchy to inadvertently > introduce an ABBA deadlock against the page lock. (ie me. I did that.) > Right now, that has to be caught by a human reviewer; if cross-release > checking can catch that, then it's worth having. Hello Matthew, Although I agree that enabling lock inversion checking for page locks is useful, I think my questions still apply to other locking objects than page locks. Thanks, Bart.��.n������g��� �a��� �&ޖ)���)��h���&������梷���� �Ǟ�m������)������^�����������v���O��zf������
