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[2003:cb:c73b:5600:c716:d8e0:609d:ae92]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-388c8012112sm12401862f8f.11.2024.12.17.14.06.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Dec 2024 14:06:27 -0800 (PST) Message-ID: Date: Tue, 17 Dec 2024 23:06:25 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 09/25] mm/gup.c: Remove redundant check for PCI P2PDMA page To: Alistair Popple , akpm@linux-foundation.org, dan.j.williams@intel.com, linux-mm@kvack.org Cc: lina@asahilina.net, zhang.lyra@gmail.com, gerald.schaefer@linux.ibm.com, vishal.l.verma@intel.com, dave.jiang@intel.com, logang@deltatee.com, bhelgaas@google.com, jack@suse.cz, jgg@ziepe.ca, catalin.marinas@arm.com, will@kernel.org, mpe@ellerman.id.au, npiggin@gmail.com, dave.hansen@linux.intel.com, ira.weiny@intel.com, willy@infradead.org, djwong@kernel.org, tytso@mit.edu, linmiaohe@huawei.com, peterx@redhat.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, nvdimm@lists.linux.dev, linux-cxl@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org, jhubbard@nvidia.com, hch@lst.de, david@fromorbit.com, Jason Gunthorpe References: <3f20b8d258d4eb72e1eadd5926d892bc61f0e0d4.1734407924.git-series.apopple@nvidia.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: zz8rfw3tcck4buggarhg76reptu74isj X-Rspamd-Queue-Id: 210FA18001C X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1734473169-764489 X-HE-Meta: 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 BhEnY+SJ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000193, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 17.12.24 06:12, Alistair Popple wrote: > PCI P2PDMA pages are not mapped with pXX_devmap PTEs therefore the > check in __gup_device_huge() is redundant. Remove it > > Signed-off-by: Alistair Popple > Reviewed-by: Jason Gunthorpe > Reviewed-by: Dan Wiliams > Acked-by: David Hildenbrand > --- Nit: patch subject should start with "mm/gup: ...". -- Cheers, David / dhildenb