> > Fix threaded user page write memory ordering
>
> Thanks, I did see that, but I'm sure it must have been prompted by a
> discussion or another proposed patch from IBM. Maybe I'm wrong
> though.
Yes, my initial proposal iirc was to smp_wmb() in set_pte() but after a
discussion with Linus, we e
> Fix threaded user page write memory ordering
>
> Make sure we order the writes to a newly created page
> with the page table update that potentially exposes the
> page to another CPU.
>
> This is a no-op on any architecture where getting the
> page table spinlock will already do the ordering (
On Fri, Feb 09, 2007 at 12:41:51AM +, Hugh Dickins wrote:
> On Thu, 8 Feb 2007, Nick Piggin wrote:
> > Still no independent confirmation as to whether this is a problem or not.
>
> I'm trying to convince myself none of your patch is necessary. Probably
> shall fail. But how come we've surviv
On Thu, 8 Feb 2007, Nick Piggin wrote:
> Still no independent confirmation as to whether this is a problem or not.
I'm trying to convince myself none of your patch is necessary. Probably
shall fail. But how come we've survived for years with such an issue?
> Updated some comments, added diffsta
On Thu, 2007-02-08 at 14:26 +0100, Nick Piggin wrote:
> Still no independent confirmation as to whether this is a problem or not.
> Updated some comments, added diffstats to patches, don't use __SetPageUptodate
> as an internal page-flags.h private function.
>
> I would like to eventually get an a
Still no independent confirmation as to whether this is a problem or not.
Updated some comments, added diffstats to patches, don't use __SetPageUptodate
as an internal page-flags.h private function.
I would like to eventually get an ack from Hugh regarding the anon memory
and especially swap side
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