On Thu, 21 Jul 2011, Vasiliy Kulikov wrote:
> +bool slab_access_ok(const void *ptr, unsigned long len)
> +{
> + struct page *page;
> + struct kmem_cache *s = NULL;
Useless assignment.
> + unsigned long offset;
> +
> + if (!virt_addr_valid(ptr))
> + return true;
> + page = virt_to_head_page(ptr);
> + if (!PageSlab(page))
> + return true;
> +
> + s = page->slab;
> + offset = (ptr - page_address(page)) % s->size;
> + if (offset <= s->objsize && len <= s->objsize - offset)
> + return true;
I thought this was going to be offset < s->objectsize ...?
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>