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From:   Huaisheng HS1 Ye <yehs1@lenovo.com>
To:     Christoph Hellwig <hch@infradead.org>
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Subject: RE: [External]  Re: [RFC PATCH v2 02/12] arch/x86/kernel/amd_gart_64:
 update usage of address zone modifiers
Thread-Topic: [External]  Re: [RFC PATCH v2 02/12]
 arch/x86/kernel/amd_gart_64: update usage of address zone modifiers
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Date:   Tue, 22 May 2018 10:17:50 +0000
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From: owner-linux-mm@kvack.org On Behalf Of Christoph Hellwig
>=20
> This code doesn't exist in current mainline.  What kernel version
> is your patch against?
>=20
> On Mon, May 21, 2018 at 11:20:23PM +0800, Huaisheng Ye wrote:
> > From: Huaisheng Ye <yehs1@lenovo.com>
> >
> > Use __GFP_ZONE_MASK to replace (__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32=
).
> >
> > ___GFP_DMA, ___GFP_HIGHMEM and ___GFP_DMA32 have been deleted from GFP
> > bitmasks, the bottom three bits of GFP mask is reserved for storing
> > encoded zone number.
> > __GFP_DMA, __GFP_HIGHMEM and __GFP_DMA32 should not be operated by OR.
>=20
> If they have already been deleted the identifier should not exist
> anymore, so either your patch has issues, or at least the description.

Dear Christoph,

The kernel version of my patches against is Linux 4.16, the most of
modifications come from include/Linux/gfp.h. I think they should be
pushed to Linux-mm, so I follow the requirement of maintainers to make
patches based on mmotm/master.

I just checked the current mainline, yes,
(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32) has been deleted, I can
rebase my patches to mainline, and resend them to mail list.

Sincerely,
Huaisheng Ye