[PATCH v2 1/2] arm64: kasan: do not instrument stacktrace.c

[Andrey Konovalov]

On Thu, Jun 23, 2022 at 9:31 PM Will Deacon <will at kernel.org> wrote:
>
> On Mon, 23 May 2022 16:51:51 +0200, andrey.konovalov at linux.dev wrote:
> > From: Andrey Konovalov <andreyknvl at google.com>
> >
> > Disable KASAN instrumentation of arch/arm64/kernel/stacktrace.c.
> >
> > This speeds up Generic KASAN by 5-20%.
> >
> > As a side-effect, KASAN is now unable to detect bugs in the stack trace
> > collection code. This is taken as an acceptable downside.
> >
> > [...]
>
> Applied to arm64 (for-next/stacktrace), thanks! I had to fix conflicts
> in both of the patches, so please can you take a quick look at the result?
>
> [1/2] arm64: kasan: do not instrument stacktrace.c
>       https://git.kernel.org/arm64/c/802b91118d11
> [2/2] arm64: stacktrace: use non-atomic __set_bit
>       https://git.kernel.org/arm64/c/446297b28a21

Hi Will,

The updated patches look good.

Thanks!