On 30/01/18 02:43, Jerome Glisse wrote: [...] > Maybe we can kill page->mapping altogether as a result of this. However this is > not my motivation at this time. We had a discussion some time ago http://www.openwall.com/lists/kernel-hardening/2017/07/07/7 where you advised to use it for tracking pmalloc pages vs area, which generated this patch: http://www.openwall.com/lists/kernel-hardening/2018/01/24/7 Could you please comment what wold happen to the shortcut from struct page to vm_struct that this patch is now introducing? -- thanks, igor
