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[2003:d8:2f2d:2400:4052:3b5:fff9:4ed0]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-4535e99d5bbsm3600465e9.36.2025.06.18.10.40.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Jun 2025 10:40:32 -0700 (PDT) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux.dev, linux-fsdevel@vger.kernel.org, David Hildenbrand , Andrew Morton , Jonathan Corbet , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Jerrin Shaji George , Arnd Bergmann , Greg Kroah-Hartman , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , Alexander Viro , Christian Brauner , Jan Kara , Zi Yan , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , "Matthew Wilcox (Oracle)" , Minchan Kim , Sergey Senozhatsky , Brendan Jackman , Johannes Weiner , Jason Gunthorpe , John Hubbard , Peter Xu , Xu Xin , Chengming Zhou , Miaohe Lin , Naoya Horiguchi , Oscar Salvador , Rik van Riel , Harry Yoo , Qi Zheng , Shakeel Butt Subject: [PATCH RFC 06/29] mm/zsmalloc: make PageZsmalloc() sticky Date: Wed, 18 Jun 2025 19:39:49 +0200 Message-ID: <20250618174014.1168640-7-david@redhat.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250618174014.1168640-1-david@redhat.com> References: <20250618174014.1168640-1-david@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: ZwFaz805O47816y_bC6Mn4J_OlPb5keNAZpsbCQPeH4_1750268433 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: D3163A0003 X-Stat-Signature: xyxhub5oxcyg5713ybrwbx6dykdg9f8m X-Rspam-User: X-HE-Tag: 1750268435-599658 X-HE-Meta: U2FsdGVkX19TuH+qeXlek+4pQgpNQAhbsI2jV12rlazCZde7HZ3kok+Qubn27IOVV4vuwgxjnrJ04xQd5B5ij2you4WZTMqbc5hjJS6WZA8n/fKdasesnAlsZi5wYl0iWaeIWj8Pm7PXQ3etGbYGZODdB9enFc77lDjCcDVPq+ygVtWaN+Rt4kPuFY/UL6amOO4R5vwcTymGEUI28ZLiEHbzSTZDtLK1V0atq+7Y3ohVrr1ppn8MOddzUj89JqURxFv5nE+uErMswv5L32c7jfnFUFSXgfQJkN3Qlcq7a+tLqQogpJf9W7h5Brdcj5UKLyTKd1NNszgdoQoU6Vv4NBFXIRZmalNuLticwUf3sChLUQ2ZqJMdrJm6UtqrLmfMeGBSz69Xuc60nN4lWFP5sj+c+eWJX6/6teylHErihIE6q2GBwv/YbzTh5oc4stbAbdzacZvyRIPzzLDdLjfTe885g5CrmpD6j09Q6fsRkcQSRSgwnk/PQsiZteJlw9cWFLtX4IptdaraVk1aGQb7mSrN+7F5xSLXokBfYnNQBTvRYsJZJWZFGBQG/Ahsi2QZCULVbKkeXPWtFIpd4WWF0G8UhsIQsKbo8Hgo+9qoWTjshaJSkYACOFtjajpgvIDxE0FUskVREiV73SS43maYCVzlY34nohfu4Uo84XT3g6HfxfpabF90UQkw6FvA1+ZnZskLNS+Qi4iRACBxoDf1+ztST7Lfqw/J281wtReqX517pTAeaXs7qEgGidYoe6jnWodjWSmhDrKzEJyde2AbyGImNkV9cmDu7o4IZCH5w2KySUGIGaLAH4iFWygkCTCZR9+QHdpQXsrV1ET3m/L8YkWufTfmW5kUMJiLXk5/D0dz8p5uwB48qPyJlFIESOUaoz4nClxx5CQEBLsv3ORmeVTv5nRYHHhz17bTccNgGwy2p5aqB6R0tyqMJaf2vWU8LMjntz9pr/rVx0jTaLk FZdtJeWd 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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: Let the buddy handle clearing the type. Signed-off-by: David Hildenbrand --- mm/zpdesc.h | 5 ----- mm/zsmalloc.c | 3 +-- 2 files changed, 1 insertion(+), 7 deletions(-) diff --git a/mm/zpdesc.h b/mm/zpdesc.h index 5cb7e3de43952..5763f36039736 100644 --- a/mm/zpdesc.h +++ b/mm/zpdesc.h @@ -163,11 +163,6 @@ static inline void __zpdesc_set_zsmalloc(struct zpdesc *zpdesc) __SetPageZsmalloc(zpdesc_page(zpdesc)); } -static inline void __zpdesc_clear_zsmalloc(struct zpdesc *zpdesc) -{ - __ClearPageZsmalloc(zpdesc_page(zpdesc)); -} - static inline struct zone *zpdesc_zone(struct zpdesc *zpdesc) { return page_zone(zpdesc_page(zpdesc)); diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 7f1431f2be98f..f98747aed4330 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -880,7 +880,7 @@ static void reset_zpdesc(struct zpdesc *zpdesc) ClearPagePrivate(page); zpdesc->zspage = NULL; zpdesc->next = NULL; - __ClearPageZsmalloc(page); + /* PageZsmalloc is sticky until the page is freed to the buddy. */ } static int trylock_zspage(struct zspage *zspage) @@ -1055,7 +1055,6 @@ static struct zspage *alloc_zspage(struct zs_pool *pool, if (!zpdesc) { while (--i >= 0) { zpdesc_dec_zone_page_state(zpdescs[i]); - __zpdesc_clear_zsmalloc(zpdescs[i]); free_zpdesc(zpdescs[i]); } cache_free_zspage(pool, zspage); -- 2.49.0