On Wed, Nov 18, 2020 at 01:13:57PM -0800, Linus Torvalds wrote: > 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 ;) > And not start thinking it as a security hardening option. -- Mel Gorman SUSE Labs
