On 06/29, Linus Torvalds wrote: > > On Thu, Jun 29, 2017 at 8:19 AM, Oleg Nesterov <o...@redhat.com> wrote: > > > > Hmm. May be you misread this patch? > > Ahh, yes. I'm ok with your patch. > > That said, you did remove something extra: the comment about > > /* Check that both stack segments have the same anon_vma? */
I didn't ;) I moved it up, right above VM_GROWSDOWN check. > is actually still relevant wrt that VM_GROWSDOWN test. The issue is > that we could actually limit the VM_GROWSDOWN thing to only be ok with > merging with a previous vma only if it *really* was the same segment. Yes, yes, this is clear. This comment motivated me to ask that question, I thought that we probably do not need to reconcile the stacks even in this case. Oleg.
