Hi, >> /* >> * Find a place in the tree where VA potentially will be >> * inserted, unless it is merged with its sibling/siblings. >> @@ -741,6 +752,10 @@ merge_or_add_vmap_area(struct vmap_area *va, >> if (sibling->va_end == va->va_start) { >> sibling->va_end = va->va_end; >> >> + kasan_release_vmalloc(orig_start, orig_end, >> + sibling->va_start, >> + sibling->va_end); >> + > The same. The call to kasan_release_vmalloc() is a static inline no-op if CONFIG_KASAN_VMALLOC is not defined, which I thought was the preferred way to do things rather than sprinkling the code with ifdefs? The complier should be smart enough to eliminate all the orig_state/orig_end stuff at compile time because it can see that it's not used, so there's no cost in the binary. Regards, Daniel