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Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , David Hildenbrand , Jakub Matena , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [REGRESSION] mremap() fails VMA expansion when VM_MIXEDMAP is set Message-ID: References: <20261023023106.515365-1-luizcap@redhat.com> <538f7c6f-3e16-4ab9-9b79-232b34fb4d3e@redhat.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <538f7c6f-3e16-4ab9-9b79-232b34fb4d3e@redhat.com> X-Rspamd-Queue-Id: A291914000A X-Stat-Signature: dyh57p3dgtmrqitg17171rw194b4ngqz X-Spam-Status: No, score=-6.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Rspam-User: X-Rspamd-Server: rspam09 X-HE-Tag: 1792765721-935120 X-HE-Meta: U2FsdGVkX1+JgIP1rv0OdjQ5Lt/kwaMubbxn7Yc48fWfwSN6lgW1HEAgcgS8p1NiI8z7C0pJ/x390B5TGNdwnbSJqIQ17q682FhOOc7GbM8EeQ4HeAXXSIGgGKMk8uFNWAHJdQMO9/h7RKvTwUHBpOWT/vnva9QwNSTJiuplqEmQw09+xostn2pgJIeNGvDbLn6TZcOTKReQURGpNLgOi0Ztnll2JssmYIf/YonEHx7FOYkH6qRw5VO9KKEFGoJMUP0YEvxstEYEWlPKApWYqvmnytKZUuVZpsQiXSc9lgyu0gW6MPv/LZWf/RLW8wdap3TtS29x/0xm+gLlpGPse1ro3oqiRspYPfN8svbeOclEdF7xrmaYAe6mE+Ej4N9Wi2Ipj1QX8uHIRG3KSqt+p7nP3zI3Gxe4M1seS6/3hOha9cVxHpcLKvX8aP9dHmJSf80jtm1bx35zmv2gu4u35hy22lCQccylihi9j/QAtSNUVhYpFFoJMq8py6ZilZHtxDapaYqHfVfiJtyHUnvg/eT9uNQRelZk+PZvs5YymoI2EEoiQV/vo5kjey8PLyj7+x2I3cUzC7LKPTHK9BbdxO0Txdy7NK36M+rA6OnoGD5Xd+AuVk7IySdTA+7zXWS5t+CSIMfdOrBLEjOdHlSgIPv3hKiZZkDaid0OFDtoBEdgkO/aBGZp64oep4Jck8Mvsmc/L3pEyktcHCazcyT6AR49jly59h/7amuThm9hsp+r/bzP0Y0ar9xLqAx2Ie2DxCluJLg3W2aDLIRyxPLg1D+LVEnlhVa5nQAPKucj4RVuleGd5u/kIBXAXw1IugrDj9sNbyqj4L/oqJ7xPPM/7ME6M7/oKJg6h2WBP4wwnWwDUU3C73Bmz6dHdF/dJShDcEkWGlTxNJIO7Zz86SSrku70ZJcE8w8q6PO3H4mjBunEo7KceOk27HxveTTN8FET0Y+WZAKdRc8g3t79iiu QTKVMkE5 aBctNnt2uD8io+QRLKkl2YFtV6FHK5FKpXQ+6Y5I2M9VYUcm/P4yt7Rm7znyiGnk17gk5AHeDGjvf3aARaqANBZJ75ONuK2YUFOFo/WEmVWV5IwN3qIq/qXExn+2vGDif33QEo8PoZSiajJnYfp57H0B1MIqoeY08ZFuKaRXdcBupJogC8TCp+QKhWfKaoRDX7zSTks+v2Ik3/5cmen4tfioVUlH3AQdwCASu1zWnIZJqi5TRWctv2vLDl/MUVgi+vTi3u/GpsU4MC2ze8gLjDyzebkEGDb0zmre6D3KPpceXaQU= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Fri, Oct 23, 2026 at 08:15:17AM -0400, Luiz Capitulino wrote: > > > On 10/23/26 4:18 AM, Lorenzo Stoakes (ARM) wrote: > > I'll dig in + get back to you. > > Thanks Lorenzo, I really appreciate it. You're welcome! This report looks valid, essentially a pure expand should be allowed for mixed mappings (with mremap() having already asserted it is a valid expansion). Writing a fix now. -- Cheers, Lorenzo