Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges

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To: Andrea Arcangeli <andrea@...>

Cc: Nick Piggin <nickpiggin@...>, <akpm@...>, Robin Holt <holt@...>, Avi Kivity <avi@...>, Izik Eidus <izike@...>, <kvm-devel@...>, Peter Zijlstra <a.p.zijlstra@...>, <general@...>, Steve Wise <swise@...>, Roland Dreier <rdreier@...>, Kanoj Sarcar <kanojsarcar@...>, <steiner@...>, <linux-kernel@...>, <linux-mm@...>, <daniel.blueman@...>

Subject: Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges

Date: Wednesday, February 27, 2008 - 9:03 pm

On Thu, 28 Feb 2008, Andrea Arcangeli wrote:

quoted text> 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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Messages in current thread:

[patch 2/6] mmu_notifier: Callbacks to invalidate address ra..., Christoph Lameter, (Fri Feb 15, 2:49 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Nick Piggin, (Tue Feb 19, 7:08 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Feb 27, 6:35 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Nick Piggin, (Mon Mar 3, 1:11 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Mon Mar 3, 3:28 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Nick Piggin, (Mon Mar 3, 3:50 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Mar 4, 2:58 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Nick Piggin, (Tue Mar 4, 8:52 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Feb 27, 8:11 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Feb 27, 8:14 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Feb 27, 8:52 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Robin Holt, (Thu Feb 28, 6:53 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Feb 27, 9:03 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Feb 27, 9:10 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Thu Feb 28, 2:43 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Thu Feb 28, 8:55 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Thu Feb 28, 8:59 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Fri Feb 29, 9:13 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Fri Feb 29, 3:55 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Fri Feb 29, 4:17 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Fri Feb 29, 5:03 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Fri Feb 29, 5:23 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Fri Feb 29, 5:34 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Fri Feb 29, 5:48 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Fri Feb 29, 6:12 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Fri Feb 29, 6:41 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Fri Feb 29, 5:29 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Feb 27, 8:10 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Jack Steiner, (Wed Feb 27, 6:42 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Feb 19, 9:00 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Feb 27, 6:39 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Feb 27, 8:38 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Robin Holt, (Tue Feb 19, 11:00 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Nick Piggin, (Tue Feb 19, 11:11 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Robin Holt, (Tue Feb 19, 11:19 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Nick Piggin, (Tue Feb 19, 4:54 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Feb 19, 9:34 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Feb 27, 6:23 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Feb 27, 7:57 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrew Morton, (Fri Feb 15, 11:37 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Sat Feb 16, 3:26 pm)

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