On Mon, Dec 23, 2019 at 04:56:56PM +0800, Xu Yu wrote: > When memory.current > memory.low, the usage of memory.low should be the > value of memory.low, not 0. > > Fix and simplify the equation in comments. Hello, Xu! There is a pending patchset from Johannes, which performs a significant rework of this code: https://lkml.org/lkml/2019/12/19/1272 . Please, take a look. Thanks!