Re: [PATCH v2 1/3] mm/mmu_notifier: use structure for invalidate_range_start/end callback

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On Wed, Dec 05, 2018 at 12:36:26AM -0500, jglisse@xxxxxxxxxx wrote:
> From: Jérôme Glisse <jglisse@xxxxxxxxxx>
> 
> To avoid having to change many callback definition everytime we want
> to add a parameter use a structure to group all parameters for the
> mmu_notifier invalidate_range_start/end callback. No functional changes
> with this patch.
> 
> Signed-off-by: Jérôme Glisse <jglisse@xxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
> Cc: Ross Zwisler <zwisler@xxxxxxxxxx>
> Cc: Jan Kara <jack@xxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx>
> Cc: Michal Hocko <mhocko@xxxxxxxxxx>
> Cc: Christian Koenig <christian.koenig@xxxxxxx>
> Cc: Felix Kuehling <felix.kuehling@xxxxxxx>
> Cc: Ralph Campbell <rcampbell@xxxxxxxxxx>
> Cc: John Hubbard <jhubbard@xxxxxxxxxx>
> Cc: kvm@xxxxxxxxxxxxxxx
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: linux-rdma@xxxxxxxxxxxxxxx
> Cc: linux-fsdevel@xxxxxxxxxxxxxxx
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c  | 43 +++++++++++--------------
>  drivers/gpu/drm/i915/i915_gem_userptr.c | 14 ++++----
>  drivers/gpu/drm/radeon/radeon_mn.c      | 16 ++++-----
>  drivers/infiniband/core/umem_odp.c      | 20 +++++-------
>  drivers/infiniband/hw/hfi1/mmu_rb.c     | 13 +++-----
>  drivers/misc/mic/scif/scif_dma.c        | 11 ++-----
>  drivers/misc/sgi-gru/grutlbpurge.c      | 14 ++++----
>  drivers/xen/gntdev.c                    | 12 +++----
>  include/linux/mmu_notifier.h            | 14 +++++---
>  mm/hmm.c                                | 23 ++++++-------
>  mm/mmu_notifier.c                       | 21 ++++++++++--
>  virt/kvm/kvm_main.c                     | 14 +++-----
>  12 files changed, 102 insertions(+), 113 deletions(-)

The changes to drivers/infiniband look mechanical and fine to me.

It even looks like this avoids merge conflicts with the other changes
to these files :)

For infiniband:

Acked-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>

I assume this will go through the mm tree?

Jason



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