From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7C1642080CB for ; Wed, 12 Feb 2025 10:23:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739355829; cv=none; b=alzTchzLhqK/gY2O1R3pLZhczuFxJo2zjNmzikS9NQFhh796FpD56LVjEhBUO8/DcyS77+46KGnX9UASDImfSRwL6I+WkS1rVsV/toHDpAmBofeYJRTJwejzKJSkUOvPXJiOo/h3F8eIN0GBoYEM9In/XKLwpnpRD9Xnv5azCRY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739355829; c=relaxed/simple; bh=BZBEVuaiMiQpifiiunyV3GoEyCbfAhZHtiKdSJfCe5o=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=PJklH2mFfQ1vE3vLPIvxKi+Z6ksVFd0hO/ZbCgd8PuujHbAmjRiQFlo8g6VgY5shC15m9rUbk0HfcPWVXAuvklikSiCowyWFw4/JXODrURqgN/tktYc0ImlCrI4ZWJxkoc27JdDXtqZ/BygYOdgxyiucqDvAW2uMvC6RJtVBkq0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=U6uwTcB6; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="U6uwTcB6" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1739355825; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=L8X4DcZFs2elKxOWwa0k/NR+c76D4y+brE6Aap7ycNU=; b=U6uwTcB6eM/mhAvMZkCu0gZokW4O/edU8XqINz3Yw22vG59YffkOGfO0EDOotGEESAF6hJ bw8qQjJkF8zweaRYRhdEULpFBTG4GJ20Rt0/QGh+GzelS43s9epwbMPFflnkGb9RfKCzA0 I77BLMR/m6kuqQaiYk1KW+kH5kiwQI4= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-539-SsrMxDKhMf2QZpyp89Lkhw-1; Wed, 12 Feb 2025 05:23:44 -0500 X-MC-Unique: SsrMxDKhMf2QZpyp89Lkhw-1 X-Mimecast-MFC-AGG-ID: SsrMxDKhMf2QZpyp89Lkhw Received: by mail-wr1-f70.google.com with SMTP id ffacd0b85a97d-38ddba9814bso1588706f8f.3 for ; Wed, 12 Feb 2025 02:23:43 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739355823; x=1739960623; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:from:references:cc:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=L8X4DcZFs2elKxOWwa0k/NR+c76D4y+brE6Aap7ycNU=; b=oOoRP1exwBwLGGNO1LvrTlnrm6bMsfNTuit64hDEuZ12lxC6lSglFxHIssiXlsD9WQ SUFYhQZM//I/bSnkjxq6CntJ3pxJcH+AaFGLfysPUcsb1Nz5OH8SQqDQhEtSCs4FJzkI SyjBjYPO1qMJjfIgKIJNvRGuRRKgHeq+QqqXJZXpFvTV3NKCjXC+mjwLu+9rEtTmFp2b x6NnIOBlFlfJw6cDb/iBob/3cfchvfK3rSn1qzg0dJoMqVb7P7ottbKNE+YpMWb+LuVl a3J6d373JSGCl4gsX/+S6QX5tRXOXLApUeVQ/pNNIuWX2iPIOXeNxxFscaMOcZhjBE5a 9ggQ== X-Forwarded-Encrypted: i=1; AJvYcCWBpvYkvHo4TRcibkz5LC703x6MqWrPywGvGDJz08NJ2Cqt3fTPr5Dx/d/PvPCe/XCH3/4w8CX+r7ngbPE=@vger.kernel.org X-Gm-Message-State: AOJu0Yxk9WesY9V+n9JSBwJSk++X0L9rEJGel6Y+kIOQkd8Yt9vNvA8F KDzfYLwou9+4bSX6KYBKyoQn8vZr8P+vZQvfLMFatMqG2KQhJ+wbA90SR9CsWZurPxdBty2eHOn I618719aS+GKXdjCGLtNC7qUVYuCfn4Q3V2UjsVFzsiskNDAFAWYVALwu9ql8rw== X-Gm-Gg: ASbGncsEPZQJflt6T24BW5DVHrVW2bo++0OgzZH+TvtCvm1S+Xdoq8jjaskIRf/EO0T VV124+355cTdcd5KWEBQRpK3VwexZuLeQGCTs0A9A6z/RevzXlylYVM37A7r70hLas3OGRLypaL IKf5dj3W/eN8WUnWjl/4HBLKYJUnOMUfSvNTnsAbVjYb/O9vurZrmROyJAd/VA3mblfiRs4Og4O 46TyNmwbsQQ/jEqh09F1Q2RY9bw6UJi93p3vkD/kA3aHJABWbFVY4S2AqsoX+BIcXXeBIjeIbY2 Z1ST90CfbL1mZvKsC4hfQsXdsukvdDirRdehILRtPuNwZcvxFlWRUVDq1k8VAP/B3S/4AUfBWPK i7PGPlqJ61TNTOnzNf5HyTGOwV1d4Uw== X-Received: by 2002:a5d:648d:0:b0:38d:e6f4:5a87 with SMTP id ffacd0b85a97d-38dea2516e5mr2148768f8f.10.1739355822865; Wed, 12 Feb 2025 02:23:42 -0800 (PST) X-Google-Smtp-Source: AGHT+IE7zr5n5F5+dcD+mXARYuAo/50Zt+QCUnGeNukOUn+08qLpr3cu4noNKpaotZqF4NpfaApiaw== X-Received: by 2002:a5d:648d:0:b0:38d:e6f4:5a87 with SMTP id ffacd0b85a97d-38dea2516e5mr2148727f8f.10.1739355822457; Wed, 12 Feb 2025 02:23:42 -0800 (PST) Received: from ?IPV6:2003:cb:c70c:a600:1e3e:c75:d269:867a? (p200300cbc70ca6001e3e0c75d269867a.dip0.t-ipconnect.de. [2003:cb:c70c:a600:1e3e:c75:d269:867a]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38dc5a8a9e4sm15765546f8f.10.2025.02.12.02.23.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Feb 2025 02:23:41 -0800 (PST) Message-ID: <9392618e-32de-4a86-9e1e-bcfeefe39181@redhat.com> Date: Wed, 12 Feb 2025 11:23:39 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v4 2/3] mm/mempolicy: export memory policy symbols To: Shivank Garg , akpm@linux-foundation.org, willy@infradead.org, pbonzini@redhat.com Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-coco@lists.linux.dev, chao.gao@intel.com, seanjc@google.com, ackerleytng@google.com, vbabka@suse.cz, bharata@amd.com, nikunj@amd.com, michael.day@amd.com, Neeraj.Upadhyay@amd.com, thomas.lendacky@amd.com, michael.roth@amd.com References: <20250210063227.41125-1-shivankg@amd.com> <20250210063227.41125-3-shivankg@amd.com> From: David Hildenbrand Content-Language: en-US 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 ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: <20250210063227.41125-3-shivankg@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10.02.25 07:32, Shivank Garg wrote: > Export memory policy related symbols needed by the KVM guest-memfd to > implement NUMA policy support. > > These symbols are required to implement per-memory region NUMA policies > for guest memory, allowing VMMs to control guest memory placement across > NUMA nodes. Probably worth mentioning something like "guest_memfd wants to implement support for NUMA policies just like shmem already does using the shared policy infrastructure. As guest_memfd currently resides in KVM module code, we have to export the relevant symbols. In the future, guest_memfd might be moved to core-mm, at which point the symbols no longer would have to be exported. When/if that happens is still unclear." Acked-by: David Hildenbrand -- Cheers, David / dhildenb