linux-kernel - Re: [PATCH 6/8] mm: don't include <linux/memremap.h> in <linux/mm.h>

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Date:   Mon, 7 Feb 2022 15:35:08 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Christoph Hellwig <hch@....de>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Felix Kuehling <Felix.Kuehling@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Ben Skeggs <bskeggs@...hat.com>,
        Karol Herbst <kherbst@...hat.com>,
        Lyude Paul <lyude@...hat.com>,
        Alistair Popple <apopple@...dia.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        nvdimm@...ts.linux.dev, linux-mm@...ck.org
Subject: Re: [PATCH 6/8] mm: don't include <linux/memremap.h> in <linux/mm.h>

On Mon, Feb 07, 2022 at 07:32:47AM +0100, Christoph Hellwig wrote:
> Move the check for the actual pgmap types that need the free at refcount
> one behavior into the out of line helper, and thus avoid the need to
> pull memremap.h into mm.h.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  arch/arm64/mm/mmu.c                    |  1 +
>  drivers/gpu/drm/amd/amdkfd/kfd_priv.h  |  1 +
>  drivers/gpu/drm/drm_cache.c            |  2 +-
>  drivers/gpu/drm/nouveau/nouveau_dmem.c |  1 +
>  drivers/gpu/drm/nouveau/nouveau_svm.c  |  1 +
>  drivers/infiniband/core/rw.c           |  1 +
>  drivers/nvdimm/pmem.h                  |  1 +
>  drivers/nvme/host/pci.c                |  1 +
>  drivers/nvme/target/io-cmd-bdev.c      |  1 +
>  fs/fuse/virtio_fs.c                    |  1 +
>  include/linux/memremap.h               | 18 ++++++++++++++++++
>  include/linux/mm.h                     | 20 --------------------
>  lib/test_hmm.c                         |  1 +
>  mm/memremap.c                          |  6 +++++-
>  14 files changed, 34 insertions(+), 22 deletions(-)

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

Jason