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

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To: Andrea Arcangeli <andrea@...>

Cc: Robin Holt <holt@...>, Avi Kivity <avi@...>, Izik Eidus <izike@...>, Nick Piggin <npiggin@...>, <kvm-devel@...>, Benjamin Herrenschmidt <benh@...>, Peter Zijlstra <a.p.zijlstra@...>, <steiner@...>, <linux-kernel@...>, <linux-mm@...>, <daniel.blueman@...>, Hugh Dickins <hugh@...>

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

Date: Tuesday, January 29, 2008 - 8:20 pm

On Wed, 30 Jan 2008, Andrea Arcangeli wrote:

quoted text> > invalidate_range after populate allows access to memory for which ptes 
> > were zapped and the refcount was released.
> 
> The last refcount is released by the invalidate_range itself.

That is true for your implementation and to address Robin's issues. Jack: 
Is that true for the GRU?

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Messages in current thread:

[patch 2/6] mmu_notifier: Callbacks to invalidate address ra..., Christoph Lameter, (Mon Jan 28, 4:28 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 12:20 pm)

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

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 5:17 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 5:35 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 6:02 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 6:39 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 8:00 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Robin Holt, (Wed Jan 30, 12:11 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Jan 30, 3:35 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Jan 30, 1:04 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Robin Holt, (Wed Jan 30, 1:30 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Jan 30, 2:25 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Jan 30, 3:50 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Jan 30, 7:52 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Jan 30, 8:01 pm)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Andrea Arcangeli, (Wed Jan 30, 8:34 pm)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Christoph Lameter, (Wed Jan 30, 10:08 pm)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Andrea Arcangeli, (Wed Jan 30, 10:42 pm)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Christoph Lameter, (Wed Jan 30, 10:51 pm)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Andrea Arcangeli, (Thu Jan 31, 9:39 am)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Christoph Lameter, (Wed Jan 30, 9:46 pm)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Andrea Arcangeli, (Thu Jan 31, 6:52 am)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Robin Holt, (Wed Jan 30, 10:34 pm)

Re: [kvm-devel] mmu_notifier: invalidate_range_start with lo..., Christoph Lameter, (Wed Jan 30, 10:56 pm)

Re: [kvm-devel] [patch 2/6] mmu_notifier: Callbacks to inval..., Christoph Lameter, (Wed Jan 30, 10:37 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Robin Holt, (Wed Jan 30, 6:18 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 8:20 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Jack Steiner, (Tue Jan 29, 8:28 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Wed Jan 30, 9:37 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Jack Steiner, (Wed Jan 30, 10:43 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Jan 30, 3:41 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Jack Steiner, (Wed Jan 30, 4:29 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Wed Jan 30, 4:55 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 8:35 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 8:05 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 8:22 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 8:59 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Peter Zijlstra, (Wed Jan 30, 4:26 am)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 2:28 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 4:30 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 5:36 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 5:53 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 6:35 pm)

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

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Andrea Arcangeli, (Tue Jan 29, 7:43 pm)

Re: [patch 2/6] mmu_notifier: Callbacks to invalidate addres..., Christoph Lameter, (Tue Jan 29, 8:34 pm)

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