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Wed, 13 Dec 2023 14:01:33 -0800 Received: from [10.110.48.28] (10.126.230.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Wed, 13 Dec 2023 14:01:32 -0800 Message-ID: Date: Wed, 13 Dec 2023 14:01:32 -0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 5/5] selftests/mm: add UFFDIO_MOVE ioctl test Content-Language: en-US To: David Hildenbrand , Muhammad Usama Anjum , Mark Brown CC: Suren Baghdasaryan , , , , , , , , , , , , , , , , , , , , , , , , , , Peter Zijlstra References: <50385948-5eb4-47ea-87f8-add4265933d6@redhat.com> <6a34b0c9-e084-4928-b239-7af01c8d4479@sirena.org.uk> <3240f4b5-081b-4075-851a-7d1cd86f4333@redhat.com> <3eadd79c-c02a-495f-92c0-0315046ef59f@nvidia.com> <3d22f342-280f-4a44-87f4-8cca291cfce7@sirena.org.uk> <0f97db9c-5b86-4f56-8463-2520fe79f709@sirena.org.uk> <2e4a719b-f2b3-48db-99db-d96040d78b12@collabora.com> <0d68fe7f-2a96-467d-87b0-52db36704e1d@nvidia.com> <926b42f9-3689-480f-8dd5-78fc0ee6088d@nvidia.com> <783a4178-1dec-4e30-989a-5174b8176b09@redhat.com> From: John Hubbard In-Reply-To: <783a4178-1dec-4e30-989a-5174b8176b09@redhat.com> Content-Type: text/plain; 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Wed, 13 Dec 2023 14:02:07 -0800 (PST) On 12/13/23 01:59, David Hildenbrand wrote: ... >> Another variation though, would be to run "make headers", and snapshot >> some of those files into tools/include. > > ^ this is what I had in mind > > If you're writing a test that needs some new fancy thing, update the relevant header. > OK, and Mark Brown's nearby response [1] supports that, as well. Thus fortified, I plan on doing the following steps: Step 1: Do nothing about the revert patch that I sent earlier, thus allowing it to continue in its journey (so far, Andrew has moved it into mm-hotfixes-stable branch). Step 2: Send out a patch for a modest part of selftests/mm, that uses this latest approach, and see how it fares in reviews. [1] https://lore.kernel.org/c0aa00a2-38a5-42da-9951-64131d936f7e@sirena.org.uk thanks, -- John Hubbard NVIDIA