On 2020/10/14 上午7:42, si-wei liu wrote:

quoted

So what I suggest is to fix the pinning leakage first and do the 
possible optimization on top (which is still questionable to me).

OK. Unfortunately, this was picked and got merged in upstream. So I 
will post a follow up patch set to 1) revert the commit to the 
original __get_free_page() implementation, and 2) fix the accounting 
and leakage on top. Will it be fine?

Fine.

Thanks