Re: [patch V4 2/8] mm/highmem: Provide CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP

[Linus Torvalds]

On Wed, Nov 18, 2020 at 12:58 PM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>
> Provide CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP which forces the temporary
> mapping even for lowmem pages. This needs to be a seperate config switch
> because this only works on architectures which do not have cache aliasing
> problems.

Very good. And you made sure to have a comment to not enable it for
production systems.

Hopefully people will even read it ;)

              Linus