Messages in this thread | | | Date | Mon, 27 Oct 2014 17:37:20 +0200 | From | Oded Gabbay <> | Subject | Re: [PATCH 1/2] mm: export find_extend_vma and handle_mm_fault for driver use |
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Buy Kaveri ;)
I'm sure Intel will be happy to contribute some $$$ to AMD ;)
Oded
On 10/27/2014 05:35 PM, Jesse Barnes wrote:
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
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