linux-kernel - Re: [PATCH 2/6] mm: move hmm_vma_range_done and hmm_vma

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Message-ID: <20190723145506.GJ15331@mellanox.com>
Date:   Tue, 23 Jul 2019 14:55:10 +0000
From:   Jason Gunthorpe <jgg@...lanox.com>
To:     Christoph Hellwig <hch@....de>
CC:     Jérôme Glisse <jglisse@...hat.com>,
        Ben Skeggs <bskeggs@...hat.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "nouveau@...ts.freedesktop.org" <nouveau@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/6] mm: move hmm_vma_range_done and hmm_vma_fault to
 nouveau

On Mon, Jul 22, 2019 at 11:44:22AM +0200, Christoph Hellwig wrote:
> These two functions are marked as a legacy APIs to get rid of, but seem
> to suit the current nouveau flow.  Move it to the only user in
> preparation for fixing a locking bug involving caller and callee.
> All comments referring to the old API have been removed as this now
> is a driver private helper.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  drivers/gpu/drm/nouveau/nouveau_svm.c | 45 +++++++++++++++++++++-
>  include/linux/hmm.h                   | 54 ---------------------------
>  2 files changed, 43 insertions(+), 56 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@...lanox.com>

Jason