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(p200300cbc70f69006c5680f80c146d2a.dip0.t-ipconnect.de. [2003:cb:c70f:6900:6c56:80f8:c14:6d2a]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a073ca511asm3210623f8f.26.2025.04.25.13.14.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 25 Apr 2025 13:14:13 -0700 (PDT) Message-ID: <6e88cf7c-3d1c-461a-acff-4d6ef01671d6@redhat.com> Date: Fri, 25 Apr 2025 22:14:12 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 04/11] mm/memremap: convert to pfnmap_track() + pfnmap_untrack() To: Peter Xu Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-trace-kernel@vger.kernel.org, Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. 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Howlett" , Lorenzo Stoakes , Vlastimil Babka , Jann Horn , Pedro Falcato References: <20250425081715.1341199-1-david@redhat.com> <20250425081715.1341199-5-david@redhat.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 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: X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: KkeEhu9AGBq5IKNLZ7kTYg8UzZ68buky6GjtGhThgq4_1745612055 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: rspam06 X-Rspamd-Queue-Id: AB0A9C0010 X-Stat-Signature: a589bhmxazg6b7fqu86x86oiqu3q73w4 X-Rspam-User: X-HE-Tag: 1745612058-903597 X-HE-Meta: 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 htYGEDr8 De6Irp80aTzMdqpxVEeHQuoy6wi/WYB1wyeCqKtgT3TnbPZoVwNqsdoo6wC4HH1XsGmTSUalWTTz+HeKGyBh0i6bNIv8v2VvnqfjWFSI90bFyo4byq649wyiCJDiLS4lP+REjwp6XKm+CxOqI4qILQu7OjgPIu152Gsw/Xclf4PUVrHW8TGOgvvtvSWu+Kmp/RX2HusVv9zDaXkr3G4sKY3KYMysJNDwM8Qhf/tCIODM1SxzPdaTdmavwHJiZD42jQH6pEDrzLrbLYetOGmr5Tgq5ROHlQH09IWLZ7E+AJ+YKF891laUECngLPUDXjUFB/Wz4xeanH0sIumT960FRqNkRLf11xUSriIbCFHqS9idO62n1v67DjJhtBh6VHspxGkHURKts1QxHttW75QWI1w4RuGu3L9yXWtVsqn+E5JmyDBVKoPX2AjKbdnYnMy0sveS80JzdFmUQt9TCJyobz7nz78Or+H/YOMWD 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 25.04.25 22:00, Peter Xu wrote: > On Fri, Apr 25, 2025 at 10:17:08AM +0200, David Hildenbrand wrote: >> Let's use the new, cleaner interface. >> >> Signed-off-by: David Hildenbrand >> --- >> mm/memremap.c | 8 ++++---- >> 1 file changed, 4 insertions(+), 4 deletions(-) >> >> diff --git a/mm/memremap.c b/mm/memremap.c >> index 2aebc1b192da9..c417c843e9b1f 100644 >> --- a/mm/memremap.c >> +++ b/mm/memremap.c >> @@ -130,7 +130,7 @@ static void pageunmap_range(struct dev_pagemap *pgmap, int range_id) >> } >> mem_hotplug_done(); >> >> - untrack_pfn(NULL, PHYS_PFN(range->start), range_len(range), true); >> + pfnmap_untrack(PHYS_PFN(range->start), range_len(range)); >> pgmap_array_delete(range); >> } >> >> @@ -211,8 +211,8 @@ static int pagemap_range(struct dev_pagemap *pgmap, struct mhp_params *params, >> if (nid < 0) >> nid = numa_mem_id(); >> >> - error = track_pfn_remap(NULL, ¶ms->pgprot, PHYS_PFN(range->start), 0, >> - range_len(range)); >> + error = pfnmap_track(PHYS_PFN(range->start), range_len(range), >> + ¶ms->pgprot); >> if (error) >> goto err_pfn_remap; >> >> @@ -277,7 +277,7 @@ static int pagemap_range(struct dev_pagemap *pgmap, struct mhp_params *params, >> if (!is_private) >> kasan_remove_zero_shadow(__va(range->start), range_len(range)); >> err_kasan: >> - untrack_pfn(NULL, PHYS_PFN(range->start), range_len(range), true); >> + pfnmap_untrack(PHYS_PFN(range->start), range_len(range)); > > Not a huge deal, but maybe we could merge this and previous patch? It > might be easier to reference the impl when reading the call site changes. Yes, I can do that. The important part to me is to split #5 of, to keep that patch somewhat reasonable in size. -- Cheers, David / dhildenb