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 <[email protected]>
> ---
> 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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