On Fri, 21 Mar 2025, Kees Cook wrote: > diff --git a/include/linux/slab.h b/include/linux/slab.h > index 2717ad238fa2..a4740c8b6ccb 100644 > --- a/include/linux/slab.h > +++ b/include/linux/slab.h > @@ -469,6 +469,8 @@ void __kfree(const void *objp); > void __kfree_sensitive(const void *objp); > size_t __ksize(const void *objp); > > +extern atomic_t count_nulled;
That is a scalability issue. Use a vmstat counter instead?
