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Miller" , Jesper Dangaard Brouer , Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Andrew Lunn , Eric Dumazet , Paolo Abeni , Ilias Apalodimas , Simon Horman , Andrew Morton , Mina Almasry , Yonglong Liu , Yunsheng Lin , Pavel Begunkov , Matthew Wilcox , netdev@vger.kernel.org, bpf@vger.kernel.org, linux-rdma@vger.kernel.org, linux-mm@kvack.org, Qiuling Ren , Yuying Ma Subject: Re: [PATCH net-next v3 0/3] Fix late DMA unmap crash for page pool In-Reply-To: <20250326044855.433a0ed1@kernel.org> References: <20250326-page-pool-track-dma-v3-0-8e464016e0ac@redhat.com> <20250326044855.433a0ed1@kernel.org> X-Clacks-Overhead: GNU Terry Pratchett Date: Wed, 26 Mar 2025 13:20:37 +0100 Message-ID: <874izgq8yy.fsf@toke.dk> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: L7Z4LULyb-wzuVc7Q0Gnv3_agwUsfJUf_yPqYbzZE9E_1742991639 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 6871F1C001C X-Stat-Signature: 1mysardiqxh4bm1xs3owrtaxki5dfgm9 X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1742991642-314634 X-HE-Meta: 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 5EDewC0Y 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 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: List-Subscribe: List-Unsubscribe: Jakub Kicinski writes: > On Wed, 26 Mar 2025 09:18:37 +0100 Toke H=C3=B8iland-J=C3=B8rgensen wrote= : >> This series fixes the late dma_unmap crash for page pool first reported >> by Yonglong Liu in [0]. It is an alternative approach to the one >> submitted by Yunsheng Lin, most recently in [1]. The first two commits >> are small refactors of the page pool code, in preparation of the main >> change in patch 3. See the commit message of patch 3 for the details. > > Doesn't apply, FWIW, Ugh, sorry about that; rebased yesterday before reposting, but forgot to do so this morning :/ > maybe rebase/repost after Linus pull net-next, in case something > conflicts on the MM side As in, you want to wait until after the merge window? Sure, can do. -Toke