Re: [patch] mm: fix anon_vma races

Hugh Dickins
2008-10-19T19:00:27Z

On Sun, 19 Oct 2008, Linus Torvalds wrote:
>
> Anyway, I _think_ the part that everybody agrees about is the initial
> locking of the anon_vma. Whether we then even need any memory barriers
> and/or the page_mapped() check is an independent question. Yes? No?
>
> So I'm suggesting this commit as the part we at least all agree on. But I
> haven't pushed it out yet, so you can still holler.. But I think all the
> discussion is about other issues, and we all agree on at least this part?

I'll have to postpone answering the rest of your mail until later,
but yes, I agree your patch is what we've all agreed on so far,
and I can't even quibble with your description - it's good.

Hugh