On Fri, Oct 23, 2015 at 11:23:26AM +0800, Hillf Danton wrote:
> > > > + if (cnt_hmm_entry) {
> > > > + int ret;
> > > > +
> > > > + ret = hmm_mm_fork(src_mm, dst_mm, dst_vma,
> > > > + dst_pmd, start, end);
> > >
> > > Given start, s
> > > + if (cnt_hmm_entry) {
> > > + int ret;
> > > +
> > > + ret = hmm_mm_fork(src_mm, dst_mm, dst_vma,
> > > + dst_pmd, start, end);
> >
> > Given start, s/end/addr/, no?
>
> No, end is the right upper limit here.
>
Then in the first loop, hmm_mm_fork i
On Thu, Oct 22, 2015 at 03:52:53PM +0800, Hillf Danton wrote:
> >
> > When migrating anonymous memory from system memory to device memory
> > CPU pte are replaced with special HMM swap entry so that page fault,
> > get user page (gup), fork, ... are properly redirected to HMM helpers.
> >
> > Thi
>
> When migrating anonymous memory from system memory to device memory
> CPU pte are replaced with special HMM swap entry so that page fault,
> get user page (gup), fork, ... are properly redirected to HMM helpers.
>
> This patch only add the new swap type entry and hooks HMM helpers
> functions
From: Jerome Glisse
When migrating anonymous memory from system memory to device memory
CPU pte are replaced with special HMM swap entry so that page fault,
get user page (gup), fork, ... are properly redirected to HMM helpers.
This patch only add the new swap type entry and hooks HMM helpers
fu
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