Re: [PATCH 1/8] mm: remove a pointless CONFIG_ZONE_DEVICE check in memremap_pages

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH 1/8] mm: remove a pointless CONFIG_ZONE_DEVICE check in memremap_pages
From: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Date: Tue, 8 Feb 2022 16:06:30 +0800
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Felix Kuehling <Felix.Kuehling@xxxxxxx>, Alex Deucher <alexander.deucher@xxxxxxx>, Christian König <christian.koenig@xxxxxxx>, "Pan, Xinhui" <Xinhui.Pan@xxxxxxx>, Ben Skeggs <bskeggs@xxxxxxxxxx>, Karol Herbst <kherbst@xxxxxxxxxx>, Lyude Paul <lyude@xxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxx>, Alistair Popple <apopple@xxxxxxxxxx>, Logan Gunthorpe <logang@xxxxxxxxxxxx>, Ralph Campbell <rcampbell@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, amd-gfx@xxxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, nouveau@xxxxxxxxxxxxxxxxxxxxx, nvdimm@xxxxxxxxxxxxxxx, Linux Memory Management List <linux-mm@xxxxxxxxx>
In-reply-to: <20220207063249.1833066-2-hch@lst.de>
References: <20220207063249.1833066-1-hch@lst.de> <20220207063249.1833066-2-hch@lst.de>

On Mon, Feb 7, 2022 at 2:36 PM Christoph Hellwig <hch@xxxxxx> wrote:
>
> memremap.c is only built when CONFIG_ZONE_DEVICE is set, so remove
> the superflous extra check.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Reviewed-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>

Thanks.

References:
- start sorting out the ZONE_DEVICE refcount mess
  - From: Christoph Hellwig
- [PATCH 1/8] mm: remove a pointless CONFIG_ZONE_DEVICE check in memremap_pages
  - From: Christoph Hellwig

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