On 3/26/19 11:15 AM, Dmitry Safonov wrote:

I still wonder if it's good to expose it to userspace rather than
shrinker, but this probably should work for me - I'll test it in near days.

I did not know about the shrinker, so can not comment if it is better or
not. If so, my patch can always be reverted since it was just applied.