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Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20230905141604.GA27370@lst.de> References: <20230905141604.GA27370@lst.de> To: Christoph Hellwig Cc: dhowells@redhat.com, Jan Kara , David Hildenbrand , Peter Xu , Lei Huang , miklos@szeredi.hu, Xiubo Li , Ilya Dryomov , Jeff Layton , Trond Myklebust , Anna Schumaker , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , John Fastabend , Jakub Sitnicki , Boris Pismenny , linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, ceph-devel@vger.kernel.org, linux-mm@kvack.org, v9fs@lists.linux.dev, netdev@vger.kernel.org Subject: Re: getting rid of the last memory modifitions through gup(FOLL_GET) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1520559.1694162496.1@warthog.procyon.org.uk> Date: Fri, 08 Sep 2023 09:41:36 +0100 Message-ID: <1520560.1694162496@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Christoph Hellwig wrote: > we've made some nice progress on converting code that modifies user > memory to the pin_user_pages interface, especially though the work > from David Howells on iov_iter_extract_pages. This thread tries to > coordinate on how to finish off this work. Right at this moment, I'm writing some kunit tests for iov_iter and I've found at least one bug. David