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Fri, 21 Nov 2025 16:46:54 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id aSd3IX6XIGmhHQAAD6G6ig (envelope-from ); Fri, 21 Nov 2025 16:46:54 +0000 Message-ID: Date: Fri, 21 Nov 2025 17:46:54 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 04/16] mm: eliminate is_swap_pte() when softleaf_from_pte() suffices Content-Language: en-US To: Lorenzo Stoakes , Andrew Morton Cc: Christian Borntraeger , Janosch Frank , Claudio Imbrenda , David Hildenbrand , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Sven Schnelle , Peter Xu , Alexander Viro , Christian Brauner , Jan Kara , Arnd Bergmann , Zi Yan , Baolin Wang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Muchun Song , Oscar Salvador , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Axel Rasmussen , Yuanchu Xie , Wei Xu , Kemeng Shi , Kairui Song , Nhat Pham , Baoquan He , Chris Li , SeongJae Park , Matthew Wilcox , Jason Gunthorpe , Leon Romanovsky , Xu Xin , Chengming Zhou , Jann Horn , Miaohe Lin , Naoya Horiguchi , Pedro Falcato , Pasha Tatashin , Rik van Riel , Harry Yoo , Hugh Dickins , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, damon@lists.linux.dev References: <92ebab9567978155116804c67babc3c64636c403.1762812360.git.lorenzo.stoakes@oracle.com> From: Vlastimil Babka Autocrypt: addr=vbabka@suse.cz; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSBWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBzdXNlLmN6PsLBlAQTAQoAPgIbAwULCQgHAwUVCgkICwUWAgMBAAIe AQIXgBYhBKlA1DSZLC6OmRA9UCJPp+fMgqZkBQJnyBr8BQka0IFQAAoJECJPp+fMgqZkqmMQ AIbGN95ptUMUvo6aAdhxaOCHXp1DfIBuIOK/zpx8ylY4pOwu3GRe4dQ8u4XS9gaZ96Gj4bC+ jwWcSmn+TjtKW3rH1dRKopvC07tSJIGGVyw7ieV/5cbFffA8NL0ILowzVg8w1ipnz1VTkWDr 2zcfslxJsJ6vhXw5/npcY0ldeC1E8f6UUoa4eyoskd70vO0wOAoGd02ZkJoox3F5ODM0kjHu Y97VLOa3GG66lh+ZEelVZEujHfKceCw9G3PMvEzyLFbXvSOigZQMdKzQ8D/OChwqig8wFBmV QCPS4yDdmZP3oeDHRjJ9jvMUKoYODiNKsl2F+xXwyRM2qoKRqFlhCn4usVd1+wmv9iLV8nPs 2Db1ZIa49fJet3Sk3PN4bV1rAPuWvtbuTBN39Q/6MgkLTYHb84HyFKw14Rqe5YorrBLbF3rl M51Dpf6Egu1yTJDHCTEwePWug4XI11FT8lK0LNnHNpbhTCYRjX73iWOnFraJNcURld1jL1nV r/LRD+/e2gNtSTPK0Qkon6HcOBZnxRoqtazTU6YQRmGlT0v+rukj/cn5sToYibWLn+RoV1CE Qj6tApOiHBkpEsCzHGu+iDQ1WT0Idtdynst738f/uCeCMkdRu4WMZjteQaqvARFwCy3P/jpK uvzMtves5HvZw33ZwOtMCgbpce00DaET4y/UzsBNBFsZNTUBCACfQfpSsWJZyi+SHoRdVyX5 J6rI7okc4+b571a7RXD5UhS9dlVRVVAtrU9ANSLqPTQKGVxHrqD39XSw8hxK61pw8p90pg4G /N3iuWEvyt+t0SxDDkClnGsDyRhlUyEWYFEoBrrCizbmahOUwqkJbNMfzj5Y7n7OIJOxNRkB IBOjPdF26dMP69BwePQao1M8Acrrex9sAHYjQGyVmReRjVEtv9iG4DoTsnIR3amKVk6si4Ea X/mrapJqSCcBUVYUFH8M7bsm4CSxier5ofy8jTEa/CfvkqpKThTMCQPNZKY7hke5qEq1CBk2 wxhX48ZrJEFf1v3NuV3OimgsF2odzieNABEBAAHCwXwEGAEKACYCGwwWIQSpQNQ0mSwujpkQ PVAiT6fnzIKmZAUCZ8gcVAUJFhTonwAKCRAiT6fnzIKmZLY8D/9uo3Ut9yi2YCuASWxr7QQZ lJCViArjymbxYB5NdOeC50/0gnhK4pgdHlE2MdwF6o34x7TPFGpjNFvycZqccSQPJ/gibwNA zx3q9vJT4Vw+YbiyS53iSBLXMweeVV1Jd9IjAoL+EqB0cbxoFXvnjkvP1foiiF5r73jCd4PR rD+GoX5BZ7AZmFYmuJYBm28STM2NA6LhT0X+2su16f/HtummENKcMwom0hNu3MBNPUOrujtW khQrWcJNAAsy4yMoJ2Lw51T/5X5Hc7jQ9da9fyqu+phqlVtn70qpPvgWy4HRhr25fCAEXZDp xG4RNmTm+pqorHOqhBkI7wA7P/nyPo7ZEc3L+ZkQ37u0nlOyrjbNUniPGxPxv1imVq8IyycG AN5FaFxtiELK22gvudghLJaDiRBhn8/AhXc642/Z/yIpizE2xG4KU4AXzb6C+o7LX/WmmsWP Ly6jamSg6tvrdo4/e87lUedEqCtrp2o1xpn5zongf6cQkaLZKQcBQnPmgHO5OG8+50u88D9I rywqgzTUhHFKKF6/9L/lYtrNcHU8Z6Y4Ju/MLUiNYkmtrGIMnkjKCiRqlRrZE/v5YFHbayRD dJKXobXTtCBYpLJM4ZYRpGZXne/FAtWNe4KbNJJqxMvrTOrnIatPj8NhBVI0RSJRsbilh6TE m6M14QORSWTLRg== In-Reply-To: <92ebab9567978155116804c67babc3c64636c403.1762812360.git.lorenzo.stoakes@oracle.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Action: no action X-Stat-Signature: 5isxy9mmu663cqriz9tzgwcd9eaydjoe X-Rspam-User: X-Rspamd-Queue-Id: 3C09D100018 X-Rspamd-Server: rspam10 X-HE-Tag: 1763743616-679444 X-HE-Meta: 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 Kl5pySPU l8fOosloSzsri/TQIhghmqse5JCaiZFiTzvyAF4T4N4N71hfXbRVu4HeaAo2ayeOwLP8cBhum11WcGhUajS97U4/K+N7LPoT+W3VFq+/VLg2+t6QNLuu9+tukTbPFmeUhr9SqmVStZe01BZOOKTpMDQxY3BD5qQzMuYnlGjfahHudgx4Ypr6xLgkc6o5MLYER0DL5TlVrZHwnPx04oZFIN/OfocCV7GPpCxorW3IGDJN5XAnkzX+GC158W24UwyKB+lIwBOb3955FQPUKf69/JmxTDr6VOlBqwzVYa/caaDvtwLjbuYCU+Nle7/dzT6f2VNPPBecYneOFjdmMoRmnftH5P4QRFRM6zUQcesidFY/AuvjQTz66V5t6/c52MBePBV6oANtinPq++GROaXJWNbC6T2NdQNbCzvyEwQokGFGzjrI= 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 11/10/25 23:21, Lorenzo Stoakes wrote: > In cases where we can simply utilise the fact that softleaf_from_pte() > treats present entries as if they were none entries and thus eliminate > spurious uses of is_swap_pte(), do so. > > No functional change intended. > > Signed-off-by: Lorenzo Stoakes Reviewed-by: Vlastimil Babka