From: Oded Gabbay <oded.gabbay@amd.com>
To: Joerg Roedel <jroedel@suse.de>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/2] mm: export find_extend_vma and handle_mm_fault for driver use
Date: Mon, 27 Oct 2014 17:15:45 +0200 [thread overview]
Message-ID: <544E61A1.7090400@amd.com> (raw)
In-Reply-To: <20141027151327.GE9734@suse.de>
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
next prev parent reply other threads:[~2014-10-27 15:15 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-24 19:34 [PATCH 1/2] mm: export find_extend_vma and handle_mm_fault for driver use Jesse Barnes
2014-10-24 19:34 ` [PATCH 2/2] iommu/amd: use handle_mm_fault directly Jesse Barnes
2014-10-27 15:13 ` [PATCH 1/2] mm: export find_extend_vma and handle_mm_fault for driver use Joerg Roedel
2014-10-27 15:15 ` Oded Gabbay [this message]
2014-10-27 15:35 ` Jesse Barnes
2014-10-27 15:37 ` Oded Gabbay
2014-10-29 9:33 ` Oded Gabbay
2014-10-29 14:37 ` Jesse Barnes
2014-11-05 12:03 ` Joerg Roedel
2014-11-05 21:51 ` Jesse Barnes
2014-11-06 8:51 ` Oded Gabbay
2014-11-06 13:03 ` Joerg Roedel
2014-11-06 13:01 ` Joerg Roedel
2014-11-12 22:07 ` Jesse Barnes
2014-11-17 16:53 ` Joerg Roedel
2014-11-12 22:10 Jesse Barnes
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