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[2003:d8:2f09:3f00:d228:bd67:7baa:d604]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4290c738e0csm234790085e9.16.2024.08.13.08.08.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Aug 2024 08:08:48 -0700 (PDT) Message-ID: <30a2d98d-6f72-4a88-8d90-8a5861b0b2c6@redhat.com> Date: Tue, 13 Aug 2024 17:08:47 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/2] alloc_tag: introduce clear_page_tag_ref() helper function To: Suren Baghdasaryan , akpm@linux-foundation.org Cc: kent.overstreet@linux.dev, vbabka@suse.cz, pasha.tatashin@soleen.com, souravpanda@google.com, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org References: <20240813150758.855881-1-surenb@google.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: <20240813150758.855881-1-surenb@google.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: C84C740020 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: xt7jhbj9n9qa5qisxfs3tw5bjamek5hh X-HE-Tag: 1723561737-251661 X-HE-Meta: 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 TR76ec8C 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 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 13.08.24 17:07, Suren Baghdasaryan wrote: > In several cases we are freeing pages which were not allocated using > common page allocators. For such cases, in order to keep allocation > accounting correct, we should clear the page tag to indicate that the > page being freed is expected to not have a valid allocation tag. > Introduce clear_page_tag_ref() helper function to be used for this. > > Suggested-by: David Hildenbrand > Signed-off-by: Suren Baghdasaryan > Cc: stable@vger.kernel.org # v6.10 > --- Acked-by: David Hildenbrand -- Cheers, David / dhildenb