Re: [PATCH] mm/vmstat: Reduce zone lock hold time when reading /proc/pagetypeinfo

From: Qian Cai
Date: Thu Oct 24 2019 - 10:56:04 EST

> On Oct 24, 2019, at 9:39 AM, Michal Hocko <mhocko@xxxxxxxxxx> wrote:
> Because the migrate type is the information that helps to understand
> fragmentation related issues. I am pretty sure Vlastimil would tell you
> much more.

Then, I donât see any point of having two files (pagetypeinfo and buddyinfo) exporting the similar type of information which is probably more important to figure out than fixing the 10-year old DoS.