lkml.org 
[lkml]   [2008]   [Jan]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges
On Tue, Jan 29, 2008 at 04:20:50PM -0800, Christoph Lameter wrote:
> On Wed, 30 Jan 2008, Andrea Arcangeli wrote:
>
> > > 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?

I'm not sure I understand the question. The GRU never (currently) takes
a reference on a page. It has no mechanism for tracking pages that
were exported to the external TLBs.

--- jack

\
 
 \ /
  Last update: 2008-01-30 01:33    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean