linux-kernel - Re: [PATCH 14/27] mm: build migrate_vma_* for all configs with ZONE

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Message-ID: <2318365.zqT5ATe7uM@nvdebian>
Date:   Thu, 10 Feb 2022 21:43:02 +1100
From:   Alistair Popple <apopple@...dia.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Christoph Hellwig <hch@....de>
CC:     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>, Jason Gunthorpe <jgg@...pe.ca>,
        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 14/27] mm: build migrate_vma_* for all configs with ZONE_DEVICE support

Thanks, it's also better than more stubbed functions.

Reviewed-by: Alistair Popple <apopple@...dia.com>

On Thursday, 10 February 2022 6:28:15 PM AEDT Christoph Hellwig wrote:
> This code will be used for device coherent memory as well in a bit,
> so relax the ifdef a bit.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  mm/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/Kconfig b/mm/Kconfig
> index 6391d8d3a616f3..95d4aa3acaefe0 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -250,7 +250,7 @@ config MIGRATION
>  	  allocation instead of reclaiming.
>  
>  config DEVICE_MIGRATION
> -	def_bool MIGRATION && DEVICE_PRIVATE
> +	def_bool MIGRATION && ZONE_DEVICE
>  
>  config ARCH_ENABLE_HUGEPAGE_MIGRATION
>  	bool
>