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Message-ID: <20250603134844.GI386142@ziepe.ca>
Date: Tue, 3 Jun 2025 10:48:44 -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 08/12] mm/khugepaged: Remove redundant pmd_devmap() check
On Thu, May 29, 2025 at 04:32:09PM +1000, Alistair Popple wrote:
> The only users of pmd_devmap were device dax and fs dax. The check for
> pmd_devmap() in check_pmd_state() is therefore redundant as callers
> explicitly check for is_zone_device_page(), so this check can be dropped.
>
> Signed-off-by: Alistair Popple <apopple@...dia.com>
> ---
> mm/khugepaged.c | 2 --
> 1 file changed, 2 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Jason
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