On Thu, Oct 08, 2020 at 04:43:41PM +0100, Matthew Wilcox wrote:
> On Thu, Oct 08, 2020 at 11:30:28AM -0400, Jerome Glisse wrote:
> > On Wed, Oct 07, 2020 at 11:09:16PM +0100, Matthew Wilcox wrote:
> > > So ... why don't you put a PageKsm page in the page cache? That way you
> > > can share code
On Thu, Oct 08, 2020 at 11:30:28AM -0400, Jerome Glisse wrote:
> On Wed, Oct 07, 2020 at 11:09:16PM +0100, Matthew Wilcox wrote:
> > So ... why don't you put a PageKsm page in the page cache? That way you
> > can share code with the current KSM implementation. You'd need
> > something like this:
On Wed, Oct 07, 2020 at 11:09:16PM +0100, Matthew Wilcox wrote:
> On Wed, Oct 07, 2020 at 01:54:19PM -0400, Jerome Glisse wrote:
> > > For other things (NUMA distribution), we can point to something which
> > > isn't a struct page and can be distiguished from a real struct page by a
> > > bit
On Wed, Oct 07, 2020 at 01:54:19PM -0400, Jerome Glisse wrote:
> > For other things (NUMA distribution), we can point to something which
> > isn't a struct page and can be distiguished from a real struct page by a
> > bit somewhere (I have ideas for at least three bits in struct page that
> >
On Wed, Oct 07, 2020 at 07:33:16PM +0100, Matthew Wilcox wrote:
> On Wed, Oct 07, 2020 at 01:54:19PM -0400, Jerome Glisse wrote:
> > On Wed, Oct 07, 2020 at 06:05:58PM +0100, Matthew Wilcox wrote:
> > > On Wed, Oct 07, 2020 at 10:48:35AM -0400, Jerome Glisse wrote:
> > > > On Wed, Oct 07, 2020 at
On Wed, Oct 07, 2020 at 01:54:19PM -0400, Jerome Glisse wrote:
> On Wed, Oct 07, 2020 at 06:05:58PM +0100, Matthew Wilcox wrote:
> > On Wed, Oct 07, 2020 at 10:48:35AM -0400, Jerome Glisse wrote:
> > > On Wed, Oct 07, 2020 at 04:20:13AM +0100, Matthew Wilcox wrote:
> > > > On Tue, Oct 06, 2020 at
On Wed, Oct 07, 2020 at 06:05:58PM +0100, Matthew Wilcox wrote:
> On Wed, Oct 07, 2020 at 10:48:35AM -0400, Jerome Glisse wrote:
> > On Wed, Oct 07, 2020 at 04:20:13AM +0100, Matthew Wilcox wrote:
> > > On Tue, Oct 06, 2020 at 09:05:49PM -0400, jgli...@redhat.com wrote:
> > > > The present
On Wed, Oct 07, 2020 at 10:48:35AM -0400, Jerome Glisse wrote:
> On Wed, Oct 07, 2020 at 04:20:13AM +0100, Matthew Wilcox wrote:
> > On Tue, Oct 06, 2020 at 09:05:49PM -0400, jgli...@redhat.com wrote:
> > > The present patchset just add mapping argument to the various vfs call-
> > > backs. It
On Wed, Oct 07, 2020 at 04:20:13AM +0100, Matthew Wilcox wrote:
> On Tue, Oct 06, 2020 at 09:05:49PM -0400, jgli...@redhat.com wrote:
> > The present patchset just add mapping argument to the various vfs call-
> > backs. It does not make use of that new parameter to avoid regression.
> > I am
On Tue, Oct 06, 2020 at 09:05:49PM -0400, jgli...@redhat.com wrote:
> The present patchset just add mapping argument to the various vfs call-
> backs. It does not make use of that new parameter to avoid regression.
> I am posting this whole things as small contain patchset as it is rather
> big
From: Jérôme Glisse
This patchset is a step toward a larger objective: generalize existing
KSM into a mechanism allowing exclusive write control for a page; either
anonymous memory (like KSM today) or file back page (modulo GUP which
would block that like it does today for KSM).
Exclusive write
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