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[2003:d8:2f40:b300:53f7:d260:aff4:7256]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-3a88c7fadf3sm10557609f8f.34.2025.06.30.06.00.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Jun 2025 06:00:30 -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 v1 06/29] mm/zsmalloc: make PageZsmalloc() sticky until the page is freed Date: Mon, 30 Jun 2025 14:59:47 +0200 Message-ID: <20250630130011.330477-7-david@redhat.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250630130011.330477-1-david@redhat.com> References: <20250630130011.330477-1-david@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: kupxG478L59HEzt2fsQ1yi5RtsYSz5vEMBreuCO5FQs_1751288432 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 117FB10000C X-Stat-Signature: nnn4jp7firpsqqohjpwhneksyoqrzk4k X-HE-Tag: 1751288436-125793 X-HE-Meta: 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 rUp55kSB 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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 page freeing code handle clearing the page type. Acked-by: Zi Yan Reviewed-by: Sergey Senozhatsky Acked-by: Harry Yoo 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