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[62.78.130.207]) by smtp.gmail.com with ESMTPSA id y12-20020ac2446c000000b004f388c5f25dsm1861049lfl.257.2023.06.07.09.06.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 07 Jun 2023 09:06:07 -0700 (PDT) Message-ID: <20adfaff-054f-ab5e-0ff4-4ce3952fbd58@redhat.com> Date: Wed, 7 Jun 2023 19:06:06 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [PATCH v3] mm/migrate_device: Try to handle swapcache pages To: Christoph Hellwig Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alistair Popple , John Hubbard , Ralph Campbell , "Huang, Ying" References: <20230606050149.25699-1-mpenttil@redhat.com> From: =?UTF-8?Q?Mika_Penttil=c3=a4?= In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 09988A0127 X-Rspam-User: X-Stat-Signature: 6ftrs3h8gw7wrj9hb9gj8dm5wicpb5kz X-Rspamd-Server: rspam03 X-HE-Tag: 1686153972-290138 X-HE-Meta: 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 eOmR9+OT qdcWfUMzcC4EQPJj5LN8YgsYGwRMJpBCRsGQDK868YuFRTW8uFa5RQKOtoP0dxTu5ljTc4yNk7ZZ14VvKBqKhxrONEn4EM9DZdjBnXgdrj87WDXYZNk+6fgs/wExFvK+olpKtpWyWFrn6F8RnA5DteQz9LQDRuNTVsHcI46mLUJx3phaFkf7fj2WeEromFyUZZ413/qzkGtOfiYbWJYT5xxt6vNGQ4rIyzEXvBO1Nfa8xmUnJD9gcKsuBA/mCHct8cg+mlRmwjAYmzZqhNzug+w9Uh9GYENc2WbyJHJBXCtDLfNJs2mKtHB157oUm9zYUgRAP1utElys8BvTAQ1rhKoIuv3yubMLUdtgVH1wMcAeC0fpF++eHTfiZR9EZLZxmIFWJli+FW2HzKtWpMKmEI7pYMAs7E8vOT2/PrFHJYioXT4vL1I5zh36gR1jmvP/Awld7eXHgVlppzC9EJkzwtywFSQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 7.6.2023 17.10, Christoph Hellwig wrote: > On Tue, Jun 06, 2023 at 08:01:49AM +0300, mpenttil@redhat.com wrote: >> From: Mika Penttilä >> >> Migrating file pages and swapcache pages into device memory is not supported. >> The decision is done based on page_mapping(). For now, swapcache pages are not migrated. > > Please fix the commit log formatting, it should not exceed 7 lines. Not sure what you mean should not exceed 7 lines..?