On Wed, Jul 10, 2024 at 07:06:39PM +0300, Alexander Shishkin wrote: > static void text_poke_memcpy(void *dst, const void *src, size_t len) > { > - memcpy(dst, src, len); > + stac(); > + __inline_memcpy(dst, src, len); > + clac(); I think you need LASS-specific stac()/clac() or an alternative_2 or so. You can't cause that perf penalty on !LASS machines. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette