From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj2-f12.google.com (mail-pj2-f12.google.com [74.125.227.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EDA804F404B for ; Fri, 18 Sep 2026 16:56:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.227.140 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789750580; cv=none; b=fuVeSUZpyl4TAb3oR1n9uE4h0//HRAFe2l2VyNkYjP7dmnLojL0GgUZ3mdfqgzOvctY7U/Y8EscCb5U553QTycdwVVSb9sCY8a/8Ru8MRnaYalcoM5KnWPFyxQnU0QeGDyNjKyXpycdLbwRbj94nOxCwaclUJmqAbOUH0e3MeUA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789750580; c=relaxed/simple; bh=0/WwajUfcenToCSvWEXAbxTRyKSAq4K724LifS3zM4Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Y2PBPDj7BRrYvi6SS3J1f4PMohxDfIJ59aOZGcdFUJ2QALHEymAAtC6tbQRh5GnLsTC3yBhbQLHBCNyNoQjvks+VOrH0eQi/Jda/mtppwjgBSqxZYvNBfRlLKL4BXTrFzI/M9AOlbQS7x+u8jHAAzB+AJLw4eav+qYXp4DYnTF0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=nvGNbtYS; arc=none smtp.client-ip=74.125.227.140 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nvGNbtYS" Received: by mail-pj2-f12.google.com with SMTP id d9443c01a7336-2d90ba1d807so12352345ad.3 for ; Fri, 18 Sep 2026 09:56:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1789750578; x=1790355378; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=neVDt5BLYMfRKzGN8kfWno0gbQY9XV/RBxErvToTgFI=; b=nvGNbtYSzU493Pk8FC+FC4ehAqfpG3A9qanRe4pPZJ3MKo6H9gsxtmHRVlBpO+aBkO 9Ed2kaQZ2VyXS7qSk4a8aB9iKrUGBBO8fmmfIexT/z/Umk1/O8oeRMpMKJisAPhVlM8G ORbbL56l/cqA6U9lPypTYjNegiahiGHIKKocdO+C+iwnE6TTTRJQ7m/G9GSkKXZeAiKS Tni4Nc/eZWVMDEoQjj7P5lUvv7j8Cys1iQqcVCAUxSkOgZg9bcqLPL1rzv+x6EqbvMdO 2XHHEs8o9q6M21dohFpn5AblGpt5y8C6j6r6yQFGa+1yRu4T4C79w7N3Mb1MGvKeySNI jCHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789750578; x=1790355378; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=neVDt5BLYMfRKzGN8kfWno0gbQY9XV/RBxErvToTgFI=; b=HaYXseWY1kjDAhtLzCYa3ab29JIl1iOdTAyKbNDdcYZKz14LEbtYndT4IzRjMsJhBn 7JLJ2EvHxf+3UJLSD3EDI8Kj2zzEqXCgldwdQO89uX+PKSYt7VHg2i9IoVwIbMf3D6no U3ORVNwRpbW5x8tNL+Rj6nvs03LnnFaZi6LTza6pBjdc63WmeKzKfKamqo4iAai9MxjC gx45QyiWbzIY7jWjZEsOswzVzoQjEOqnCCwdFDYTME1jGTsKzLPtQW2ZJOXlkEIyxtph Hbz/HzzttIn2BG6aN4vAYH6YCA2rGQa9X53YS8U1lYk8JUy3aiOrCKCcQQrNHDxSulvZ vBaQ== X-Forwarded-Encrypted: i=1; AKwUvBygdzRiWJ0vsPWPSU81tRrdyj4KMifMARexBdQ6/Uc4r0n9UfuQeayHNRQm1wWhjzXra4VRvP73jPDlhjI=@vger.kernel.org X-Gm-Message-State: AFuF++nS2p7ZZdtyQCfnrtO9pWbYG58dIz1OqK5E7qt8jpwRI19oP5jS /YjtzX1RKXuZ4AXOQ00WJWh1ONRFw01lpykEwasKroeDqbeQs1YN2VrZ X-Gm-Gg: AYBFou2qfGiVBd9j+kbFz+RTxz/P/6ADoAunXSSfLsLj5ANX/LhSAX1BqU2I4VgL3bt LjASqm2we8MRcJkMZr8i0S8/WwFLG545Z8fRv2rNS0vhV2Asyp1chJi7yvjM9G1R5z9Wk3aBVcX avcsCPGys+m1vkgls74oY8dzcgvg69LObllJZDTQwJV7ngQ226Nr/Uu+7qL++kTJmEPjivYmqqK VxYUJjSdyzvGvNFlgMAQGVe/xZrr2oUg5kljKqyxRVPqH1t5cxnxlKPs1iIwv9+sQ33TSBp5Jb5 UEMVPQMWsMAUbXaUQl+zoQ1IShG6PBgnmMR/q6W/BE6CoH/NX6X4AkJLj+8UDqPZgIx4npsDVYZ GI74SQrsrkyF5iW6OrmlrOJ6nl7E8JqKj79XZQFCOU5EDKlD8Ffm+uaNT1697tOzX7/fVFCUKWm 0/Ej/Hh4r6bqT8XzH/gP8ASigD/qpVlDjEvGSsCcioz8wkxgikiyZs24ZJWAGUsgwy X-Received: by 2002:a17:902:e951:b0:2db:7269:38ef with SMTP id d9443c01a7336-2ddb1b77ac2mr79752805ad.14.1789750577966; Fri, 18 Sep 2026 09:56:17 -0700 (PDT) Received: from ubuntu.. ([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: linux-kernel@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