On Thu, Feb 1, 2018 at 6:18 AM, Vince Weaver <vincent.weaver@xxxxxxxxx> wrote:
>
> I thought that to get into stable the patch had to be in upstream first.
Upstream does have the fix, it's just very very different in this case.
The upstream fix is commit 99a9dc98ba52 ("x86,perf: Disable intel_bts
when PTI"), which just disables intel_bts entirely, because upstream
doesn't do those "kaiser_add/remove_mapping()" things.
So this "backport" is ok.
Linus