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Message-ID: <20250603134905.GJ386142@ziepe.ca>
Date: Tue, 3 Jun 2025 10:49:05 -0300
From: Jason Gunthorpe <jgg@...pe.ca>
To: Alistair Popple <apopple@...dia.com>
Cc: linux-mm@...ck.org, gerald.schaefer@...ux.ibm.com,
dan.j.williams@...el.com, 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, hch@....de,
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 09/12] powerpc: Remove checks for devmap pages and
PMDs/PUDs
On Thu, May 29, 2025 at 04:32:10PM +1000, Alistair Popple wrote:
> PFN_DEV no longer exists. This means no devmap PMDs or PUDs will be
> created, so checking for them is redundant. Instead mappings of pages that
> would have previously returned true for pXd_devmap() will return true for
> pXd_trans_huge()
>
> Signed-off-by: Alistair Popple <apopple@...dia.com>
> ---
> arch/powerpc/mm/book3s64/hash_hugepage.c | 2 +-
> arch/powerpc/mm/book3s64/hash_pgtable.c | 3 +--
> arch/powerpc/mm/book3s64/hugetlbpage.c | 2 +-
> arch/powerpc/mm/book3s64/pgtable.c | 10 ++++------
> arch/powerpc/mm/book3s64/radix_pgtable.c | 5 ++---
> arch/powerpc/mm/pgtable.c | 2 +-
> 6 files changed, 10 insertions(+), 14 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Jason
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