linux-kernel - Re: [PATCH 09/10] mm: remove the unused MIGRATE_PFN

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Date:   Fri, 16 Aug 2019 15:23:17 +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>,
        Bharata B Rao <bharata@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "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 09/10] mm: remove the unused MIGRATE_PFN_DEVICE flag

On Wed, Aug 14, 2019 at 09:59:27AM +0200, Christoph Hellwig wrote:
> No one ever checks this flag, and we could easily get that information
> from the page if needed.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> Reviewed-by: Ralph Campbell <rcampbell@...dia.com>
> ---
>  drivers/gpu/drm/nouveau/nouveau_dmem.c | 3 +--
>  include/linux/migrate.h                | 1 -
>  mm/migrate.c                           | 4 ++--
>  3 files changed, 3 insertions(+), 5 deletions(-)

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

Jason