On Tue, Feb 19, 2008 at 07:46:10PM +1100, Nick Piggin wrote:
> On Sunday 17 February 2008 06:22, Christoph Lameter wrote:
> > On Fri, 15 Feb 2008, Andrew Morton wrote:
>
> > > > flush_cache_page(vma, address, pte_pfn(*pte));
> > > > entry = ptep_clear_flush(vma, add
On Sunday 17 February 2008 06:22, Christoph Lameter wrote:
> On Fri, 15 Feb 2008, Andrew Morton wrote:
> > > flush_cache_page(vma, address, pte_pfn(*pte));
> > > entry = ptep_clear_flush(vma, address, pte);
> > > + mmu_notifier(invalidate_page, mm, address);
> >
> > I j
On Saturday 16 February 2008 14:37, Andrew Morton wrote:
> On Thu, 14 Feb 2008 22:49:02 -0800 Christoph Lameter <[EMAIL PROTECTED]>
wrote:
> > Two callbacks to remove individual pages as done in rmap code
> >
> > invalidate_page()
> >
> > Called from the inner loop of rmap walks to invalidate
On Fri, 15 Feb 2008, Andrew Morton wrote:
> > @@ -287,7 +288,8 @@ static int page_referenced_one(struct pa
> > if (vma->vm_flags & VM_LOCKED) {
> > referenced++;
> > *mapcount = 1; /* break early from loop */
> > - } else if (ptep_clear_flush_young(vma, address, pte)
On Fri, Feb 15, 2008 at 07:37:36PM -0800, Andrew Morton wrote:
> The "|" is obviously deliberate. But no explanation is provided telling us
> why we still call the callback if ptep_clear_flush_young() said the page
> was recently referenced. People who read your code will want to understand
> thi
On Thu, 14 Feb 2008 22:49:02 -0800 Christoph Lameter <[EMAIL PROTECTED]> wrote:
> Two callbacks to remove individual pages as done in rmap code
>
> invalidate_page()
>
> Called from the inner loop of rmap walks to invalidate pages.
>
> age_page()
>
> Called for the determination of
This is the second part of a patch posted to patch 1/6.
Index: git-linus/mm/rmap.c
===
--- git-linus.orig/mm/rmap.c2008-01-30 11:55:56.0 -0600
+++ git-linus/mm/rmap.c 2008-01-30 12:01:28.0 -0600
@@ -476,8 +476,10
I don't understand how this is intended to work. I think the page flag
needs to be maintained by the mmu_notifier subsystem.
Let's assume we have a mapping that has a grant from xpmem and an
additional grant from kvm. The exporters are not important, the fact
that there may be two is.
Assume th
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