Messages in this thread |  | | | Date | Thu, 8 May 2008 08:30:20 +0300 | | From | "Pekka Enberg" <> | | Subject | Re: [PATCH 08 of 11] anon-vma-rwsem | |
On Thu, May 8, 2008 at 8:27 AM, Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> You might want to read carefully what Linus wrote:
>
> > The one that already has a 4 byte padding thing on x86-64 just after the
> > spinlock? And that on 32-bit x86 (with less than 256 CPU's) would have two
> > bytes of padding if we didn't just make the spinlock type unconditionally
> > 32 bits rather than the 16 bits we actually _use_?
>
> So you need to add the flag _after_ ->lock and _before_ ->head....
Oh should have taken my morning coffee first, before ->lock works
obviously as well.
|  |