[PATCH v5 5/5] ARM: smp: Enable THREAD_INFO_IN_TASK

[Linus Walleij]

On Sat, Sep 18, 2021 at 10:44 AM Ard Biesheuvel <ardb at kernel.org> wrote:

> Now that we no longer rely on thread_info living at the base of the task
> stack to be able to access the 'current' pointer, we can wire up the
> generic support for moving thread_info into the task struct itself.
>
> Note that this requires us to update the cpu field in thread_info
> explicitly, now that the core code no longer does so. Ideally, we would
> switch the percpu code to access the cpu field in task_struct instead,
> but this unleashes #include circular dependency hell.
>
> Co-developed-by: Keith Packard <keithpac at amazon.com>
> Signed-off-by: Keith Packard <keithpac at amazon.com>
> Signed-off-by: Ard Biesheuvel <ardb at kernel.org>

This solution looks (very) good to me.
Reviewed-by: Linus Walleij <linus.walleij at linaro.org>

Yours,
Linus Walleij