linux-ext4 - Re: [PATCH 01/12] mm: Remove PFN_MAP, PFN_SG_CHAIN and PFN_SG

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Message-ID: <sldyvyn4lodqgcj3zfh6p6dxkp66aqwrzk66tgj7afog2u6wb6@wcb2b4dxqbdk>
Date: Wed, 4 Jun 2025 13:23:39 +1000
From: Alistair Popple <apopple@...dia.com>
To: Christoph Hellwig <hch@....de>
Cc: linux-mm@...ck.org, gerald.schaefer@...ux.ibm.com, 
	dan.j.williams@...el.com, jgg@...pe.ca, willy@...radead.org, david@...hat.com, 
	linux-kernel@...r.kernel.org, nvdimm@...ts.linux.dev, linux-fsdevel@...r.kernel.org, 
	linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org, jhubbard@...dia.com, 
	zhang.lyra@...il.com, debug@...osinc.com, bjorn@...nel.org, balbirs@...dia.com, 
	lorenzo.stoakes@...cle.com, linux-arm-kernel@...ts.infradead.org, loongarch@...ts.linux.dev, 
	linuxppc-dev@...ts.ozlabs.org, linux-riscv@...ts.infradead.org, linux-cxl@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, John@...ves.net
Subject: Re: [PATCH 01/12] mm: Remove PFN_MAP, PFN_SG_CHAIN and PFN_SG_LAST

On Mon, Jun 02, 2025 at 06:54:27AM +0200, Christoph Hellwig wrote:
> On Thu, May 29, 2025 at 04:32:02PM +1000, Alistair Popple wrote:
> > The PFN_MAP flag is no longer used for anything, so remove it. The
> > PFN_SG_CHAIN and PFN_SG_LAST flags never appear to have been used so
> > also remove them.
> > 
> > Signed-off-by: Alistair Popple <apopple@...dia.com>
> > Reviewed-by: Christoph Hellwig <hch@....de>
> 
> FYI, unlike the rest of the series that has some non-trivial work
> this feels like a 6.16-rc candidate as it just removes dead code
> and we'd better get that in before a new user or even just a conflict
> sneaks in.

Good idea. I have just sent it as a stand-alone patch.