Re: [PATCH hmm 4/5] mm/hmm: remove HMM_PFN_SPECIAL

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To: Jason Gunthorpe <jgg@xxxxxxxx>
Subject: Re: [PATCH hmm 4/5] mm/hmm: remove HMM_PFN_SPECIAL
From: Christoph Hellwig <hch@xxxxxx>
Date: Wed, 22 Apr 2020 07:53:11 +0200
Cc: linux-mm@xxxxxxxxx, Ralph Campbell <rcampbell@xxxxxxxxxx>, Alex Deucher <alexander.deucher@xxxxxxx>, amd-gfx@xxxxxxxxxxxxxxxxxxxxx, Ben Skeggs <bskeggs@xxxxxxxxxx>, Christian König <christian.koenig@xxxxxxx>, "David (ChunMing) Zhou" <David1.Zhou@xxxxxxx>, dri-devel@xxxxxxxxxxxxxxxxxxxxx, "Kuehling, Felix" <Felix.Kuehling@xxxxxxx>, Christoph Hellwig <hch@xxxxxx>, intel-gfx@xxxxxxxxxxxxxxxxxxxxx, Jérôme Glisse <jglisse@xxxxxxxxxx>, John Hubbard <jhubbard@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Niranjana Vishwanathapura <niranjana.vishwanathapura@xxxxxxxxx>, nouveau@xxxxxxxxxxxxxxxxxxxxx
In-reply-to: <4-v1-4eb72686de3c+5062-hmm_no_flags_jgg@mellanox.com>
References: <0-v1-4eb72686de3c+5062-hmm_no_flags_jgg@mellanox.com> <4-v1-4eb72686de3c+5062-hmm_no_flags_jgg@mellanox.com>
User-agent: Mutt/1.5.17 (2007-11-01)

On Tue, Apr 21, 2020 at 09:21:45PM -0300, Jason Gunthorpe wrote:
> From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
> 
> This is just an alias for HMM_PFN_ERROR, nothing cares that the error was
> because of a special page vs any other error case.

Looks good,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

References:
- [PATCH hmm 0/5] Adjust hmm_range_fault() API
  - From: Jason Gunthorpe
- [PATCH hmm 4/5] mm/hmm: remove HMM_PFN_SPECIAL
  - From: Jason Gunthorpe

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