svn commit: r353149 - head/sys/amd64/amd64

[Julian Elischer]

On 10/6/19 3:13 PM, Mateusz Guzik wrote:
> Author: mjg
> Date: Sun Oct  6 22:13:35 2019
> New Revision: 353149
> URL: https://svnweb.freebsd.org/changeset/base/353149
>
> Log:
>    amd64 pmap: implement per-superpage locks
>    
>   

I read the diff and it seems ok and I'm glad you can turn it off if 
there are issues,

Can you give a little more background for those of us who are not up 
to date in current pmap implementation as to how this works?

(for educational reasons)