Re: [PATCH mm v4 29/39] kasan, page_alloc: allow skipping memory init for HW_TAGS

Andrey Konovalov
2021-12-30T19:11:49Z

On Tue, Dec 21, 2021 at 1:30 PM Marco Elver <elver@google.com> wrote:
>
> On Mon, Dec 20, 2021 at 11:02PM +0100, andrey.konovalov@linux.dev wrote:
> [...]
> > /* Room for N __GFP_FOO bits */
> > #define __GFP_BITS_SHIFT (24 + \
> > + IS_ENABLED(CONFIG_KASAN_HW_TAGS) + \
> > IS_ENABLED(CONFIG_KASAN_HW_TAGS) + \
> > IS_ENABLED(CONFIG_KASAN_HW_TAGS) + \
> > IS_ENABLED(CONFIG_LOCKDEP))
>
> Does '3 * IS_ENABLED(CONFIG_KASAN_HW_TAGS)' work?

Yes, will do in v5.