RE: [External] Re: [RFC PATCH v2 02/12] arch/x86/kernel/amd_gart_64: update usage of address zone modifiers

[Huaisheng HS1 Ye]

From: owner-linux-mm@xxxxxxxxx On Behalf Of Christoph Hellwig
> 
> This code doesn't exist in current mainline.  What kernel version
> is your patch against?
> 
> On Mon, May 21, 2018 at 11:20:23PM +0800, Huaisheng Ye wrote:
> > From: Huaisheng Ye <yehs1@xxxxxxxxxx>
> >
> > 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.
> 
> 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