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([110.9.142.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ddb75bfe10sm11409685ad.64.2026.09.18.09.56.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Sep 2026 09:56:17 -0700 (PDT) From: Sang-Heon Jeon To: Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Muchun Song Subject: [PATCH 1/2] memcg: remove unused page_memcg_check() Date: Sat, 19 Sep 2026 01:55:57 +0900 Message-ID: <20260918165601.1014666-2-ekffu200098@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260918165601.1014666-1-ekffu200098@gmail.com> References: <20260918165601.1014666-1-ekffu200098@gmail.com> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Since commit 90f095b816e2 ("mm/page_owner: use memcg_data snapshot to avoid TOCTOU in print_page_owner_memcg()"), page_memcg_check() has no callers. So remove it. No functional change. Signed-off-by: Sang-Heon Jeon --- include/linux/memcontrol.h | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 64c183be8cbf..b57a74617b0b 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -498,13 +498,6 @@ static inline struct mem_cgroup *folio_memcg_check(const struct folio *folio) return obj_cgroup_memcg(objcg); } -static inline struct mem_cgroup *page_memcg_check(const struct page *page) -{ - if (PageTail(page)) - return NULL; - return folio_memcg_check((const struct folio *)page); -} - static inline struct mem_cgroup *get_mem_cgroup_from_objcg(const struct obj_cgroup *objcg) { struct mem_cgroup *memcg; @@ -1100,11 +1093,6 @@ static inline struct mem_cgroup *folio_memcg_check(const struct folio *folio) return NULL; } -static inline struct mem_cgroup *page_memcg_check(const struct page *page) -{ - return NULL; -} - static inline struct mem_cgroup *get_mem_cgroup_from_objcg(const struct obj_cgroup *objcg) { return NULL; -- 2.43.0