Oleg Nesterov <oleg@redhat.com> wrote:

> tsk is always "current", probably this should be documented, I'll add
> the comment.

If tsk is always current, then don't pass it as a parameter.  Some arches keep
current in a register and it's much more efficient to use current directly in
those cases - and those that don't have to be able to obtain it reasonably
quickly.

David