Messages in this thread | | | Date | Mon, 27 Oct 2014 08:35:52 -0700 | From | Jesse Barnes <> | Subject | Re: [PATCH 1/2] mm: export find_extend_vma and handle_mm_fault for driver use |
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Thanks, I have no way of testing this, but I'm hopeful. :)
Jesse
On Mon, 27 Oct 2014 17:15:45 +0200 Oded Gabbay <oded.gabbay@amd.com> wrote:
> Sure, no problem > > Oded > > On 10/27/2014 05:13 PM, Joerg Roedel wrote: > > Hi Oded, > > can you please test these patches with the KFD driver and make sure > nothing breaks for you? I really like this improvement and it would be > great to send it upstream for v3.19. > > Thanks, > > Joerg > > On Fri, Oct 24, 2014 at 12:34:30PM -0700, Jesse Barnes wrote: > > > This lets drivers like the AMD IOMMUv2 driver handle faults a bit more > > simply, rather than doing tricks with page refs and get_user_pages(). > > > > Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> > > --- > > mm/memory.c | 1 + > > mm/mmap.c | 2 ++ > > 2 files changed, 3 insertions(+) > > > > diff --git a/mm/memory.c b/mm/memory.c > > index 1cc6bfb..969ff0c 100644 > > --- a/mm/memory.c > > +++ b/mm/memory.c > > @@ -3378,6 +3378,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, > > > > return ret; > > } > > +EXPORT_SYMBOL_GPL(handle_mm_fault); > > > > #ifndef __PAGETABLE_PUD_FOLDED > > /* > > diff --git a/mm/mmap.c b/mm/mmap.c > > index 7f85520..2ee7971 100644 > > --- a/mm/mmap.c > > +++ b/mm/mmap.c > > @@ -2359,6 +2359,8 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr) > > } > > #endif > > > > +EXPORT_SYMBOL_GPL(find_extend_vma); > > + > > /* > > * Ok - we have the memory areas we should free on the vma list, > > * so release them, and do the vma updates. > > -- > > 1.9.1 > >
-- Jesse Barnes, Intel Open Source Technology Center
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