Messages in this thread | | | Date | Wed, 27 Feb 2008 17:03:21 -0800 (PST) | From | Christoph Lameter <> | Subject | Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges |
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On Thu, 28 Feb 2008, Andrea Arcangeli wrote:
> On Wed, Feb 27, 2008 at 04:14:08PM -0800, Christoph Lameter wrote: > > Erm. This would also be needed by RDMA etc. > > The only RDMA I know is Quadrics, and Quadrics apparently doesn't need > to schedule inside the invalidate methods AFIK, so I doubt the above > is true. It'd be interesting to know if IB is like Quadrics and it > also doesn't require blocking to invalidate certain remote mappings.
RDMA works across a network and I would assume that it needs confirmation that a connection has been torn down before pages can be unmapped.
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