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s=arc-20220608; d=hostedemail.com; t=1769003110; a=rsa-sha256; cv=none; b=7jCvuWfu0caJqORs9sQbHP7XDtX4WzuTuuDFoCEEDoVZoygGYQc3gkibbA4o+szcbYI9yG a35RLPGqvePD/W/gr3JTfCESf2TmoCypRfDveKqDawR/l8Ixl81LMe/OSeR4ONB7jPl/Wz gEx/NbeE6fovaxRn5uIGDjt+xb0osOo= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=arm.com; spf=pass (imf10.hostedemail.com: domain of kevin.brodsky@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=kevin.brodsky@arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BBA411476; Wed, 21 Jan 2026 05:45:02 -0800 (PST) Received: from [10.57.49.179] (unknown [10.57.49.179]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 75B453F632; Wed, 21 Jan 2026 05:45:07 -0800 (PST) Message-ID: <0b82e184-2a2d-41e9-a2ee-2664c382fa8a@arm.com> Date: Wed, 21 Jan 2026 14:45:03 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 8/8] selftests/mm: report SKIP in pfnmap if a check fails To: Ryan Roberts , "David Hildenbrand (Red Hat)" , linux-mm@kvack.org, linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Andrew Morton , Lorenzo Stoakes , Mark Brown , Shuah Khan References: <20260107164842.3289559-1-kevin.brodsky@arm.com> <20260107164842.3289559-9-kevin.brodsky@arm.com> <09c214df-c3aa-48e4-9587-c54c667c6ce9@kernel.org> <46e50e9d-0e4a-4f81-8b43-61b897ad9c34@arm.com> <42b9825a-adef-4e80-bbf3-bf01b9fb0054@kernel.org> From: Kevin Brodsky Content-Language: en-GB In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: 7rtdixjgjz1fzyiaq4k1kwgdmqmq3wc6 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 6CFACC0006 X-Rspam-User: X-HE-Tag: 1769003110-634336 X-HE-Meta: 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 KG7YBbxw hBZLoCasruFbNLFbb9Ylan8cS9tS7qKeQJikBBDYjsqntnTSHaDTv5zgZh6UpPzfwtj4QFhxM0Vy7Qv+YWVgX/7NQEoEHYnoVZT/AkUyuO67TPm3YXD47c/bva23VFVjrDaGOc45KnA0JJcU= 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: On 20/01/2026 17:27, Ryan Roberts wrote: >>> But if you think that concern is unfounded, certainly just opening it once and >>> reusing will simplify. >> I would just keep it simple here, yes. If this ever becomes a real problem, my >> intuition would tell me that probably the caller is doing something unsupported >> that we just cannot easily identify+reject. > Yeah fair enough. Cool, will make the fd a global as well then. - Kevin