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Howlett" , Lorenzo Stoakes , Madhavan Srinivasan , Michael Ellerman , Michal Hocko , Mike Rapoport , Nicholas Piggin , Peter Zijlstra , Ryan Roberts , Suren Baghdasaryan , Thomas Gleixner , Vlastimil Babka , Will Deacon , Yeoreum Yun , linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, Mark Rutland References: <20250908073931.4159362-1-kevin.brodsky@arm.com> <20250908073931.4159362-3-kevin.brodsky@arm.com> <2fecfae7-1140-4a23-a352-9fd339fcbae5-agordeev@linux.ibm.com> <47ee1df7-1602-4200-af94-475f84ca8d80@arm.com> <29383ee2-d6d6-4435-9052-d75a263a5c45@redhat.com> <9de08024-adfc-421b-8799-62653468cf63@arm.com> <4b4971fd-0445-4d86-8f3a-6ba3d68d15b7@arm.com> <4aa28016-5678-4c66-8104-8dcc3fa2f5ce@redhat.com> <15d01c8b-5475-442e-9df5-ca37b0d5dc04@arm.com> <7953a735-6129-4d22-be65-ce736630d539@redhat.com> <781a6450-1c0b-4603-91cf-49f16cd78c28@arm.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZoEEwEIAEQCGwMCF4ACGQEFCwkIBwICIgIG FQoJCAsCBBYCAwECHgcWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaJzangUJJlgIpAAKCRBN 3hD3AP+DWhAxD/9wcL0A+2rtaAmutaKTfxhTP0b4AAp1r/eLxjrbfbCCmh4pqzBhmSX/4z11 opn2KqcOsueRF1t2ENLOWzQu3Roiny2HOU7DajqB4dm1BVMaXQya5ae2ghzlJN9SIoopTWlR 0Af3hPj5E2PYvQhlcqeoehKlBo9rROJv/rjmr2x0yOM8qeTroH/ZzNlCtJ56AsE6Tvl+r7cW 3x7/Jq5WvWeudKrhFh7/yQ7eRvHCjd9bBrZTlgAfiHmX9AnCCPRPpNGNedV9Yty2Jnxhfmbv Pw37LA/jef8zlCDyUh2KCU1xVEOWqg15o1RtTyGV1nXV2O/mfuQJud5vIgzBvHhypc3p6VZJ lEf8YmT+Ol5P7SfCs5/uGdWUYQEMqOlg6w9R4Pe8d+mk8KGvfE9/zTwGg0nRgKqlQXrWRERv cuEwQbridlPAoQHrFWtwpgYMXx2TaZ3sihcIPo9uU5eBs0rf4mOERY75SK+Ekayv2ucTfjxr Kf014py2aoRJHuvy85ee/zIyLmve5hngZTTe3Wg3TInT9UTFzTPhItam6dZ1xqdTGHZYGU0O otRHcwLGt470grdiob6PfVTXoHlBvkWRadMhSuG4RORCDpq89vu5QralFNIf3EysNohoFy2A LYg2/D53xbU/aa4DDzBb5b1Rkg/udO1gZocVQWrDh6I2K3+cCs7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <781a6450-1c0b-4603-91cf-49f16cd78c28@arm.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: gBwIqy5ZMylcvrotZR-idWJLUS74QiicGMl6D7paFic_1757667353 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 4944DC000B X-Stat-Signature: oq3ontyc34k8z3kg8fxcxoap7dw1h1y5 X-Rspam-User: X-HE-Tag: 1757667357-267129 X-HE-Meta: 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 A1t0uqpO hZjqUuGa5uYUOe/RbWZLZLW0xnk7loyHgeGzOvPSrM/NBiI86lWRVjYZd1rD4XVWbRhnF6YK3TJ+4tKk+6EV2XgI7Vj2QVyNcNND/3tXVoG9vAXB5dgIjpmnmn0DLbaldFr3nilkG7o/wm6AS92EWpB6FLKv9GlI3jZqYsDhzbHqyFqVCXyGVHd1nI6TBMc2QTjo2VYD1LxF4NOrX5HtSA7I7Lx81ocWNgc4fKidwAl+0Xsw+v//Niy2i9HlhWfA8rCpdgUn75m/IEivXCflWKRk1nZ6oRvu8q+FjDuIycASZMXvIjbziROdr/ZTn5u6UAdPvsIqWumU8LC8FVxpMXgx8ZbXZq6Zi7gWWs0JJ4zM3af6rbnm97qlYVDdZI2ymGzJAa39pnFNO7O+3eY+fUnOCh1FZ7OuJc05IaIy78WkVf2YYdsaTFtGpu+QbVpsUJlLwymggnELdmcVcBhiam5B1vsfIpgvSNkgw 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: > I also wondered about that. I think the safest is to make them > respectively arch_leave() and arch_enter() - the flushing entailed by > arch_leave() might not be required, but it is safer. Additionally, > powerpc/sparc disable preemption while in lazy_mmu, so it seems like a > good idea to re-enable it while paused (by calling arch_leave()). Great, looking forward to seeing this all getting cleaned up and done properly for good. -- Cheers David / dhildenb