From nobody Fri Dec 19 01:27:37 2025 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7577C1B5820 for ; Thu, 29 Aug 2024 21:27:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724966832; cv=none; b=RAO8vv0C1Y7kxiGwJ2aO0sfV/HI4Oc4C8ZShZVq9ODXVfCxhZNdWGHhhn7RQF5OB5yB2FV94aitYAgMJ/S4mR2HTTKnnIPr+kot8Klae7/PttaXBmNMoiAvGppjjm4b/wZtAA+It4Q/33uFueuBBJldvY/CUua32ESXMjn9btFY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724966832; c=relaxed/simple; bh=j6MRHvvdb4Y/ecSm2gb8TOi+Txe+Ci0dZeAdkAYjrOU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=BxnkqAF1VDPue7SGQQ4hkF3q9sP5ESwPdidoiQgnH9lc0m4mgXbltxX+wrzr08M9Fv01aI1Dqju38ERRy2OrUlfO7K5dfBMYh/YJAmkGLWagoYbwOVagUI/g6VHUxXgunv8hZUEPTWuIgijD+821uGF3z4MPV17cwQI/+rvA40A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=LI816hmi; arc=none smtp.client-ip=198.175.65.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="LI816hmi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724966830; x=1756502830; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=j6MRHvvdb4Y/ecSm2gb8TOi+Txe+Ci0dZeAdkAYjrOU=; b=LI816hmi1KTigAySKdsWXCiwArOHE9hGK1nrvXin7zczSuMuHWvJ/drb ZOiNCZS1u/tmKZ+DfKglo/sKL05HqaZROzLKrV6oqNrHfJPBHN+5NdJ5H ghgEtdSMRo3i8rmP+gBQOcPzKOe57EYBnBn9jD6pRs76ZNvZRH7TsSLMu UybhpdePV8BmVIP4lOJUhCWKkZrcVa7Jr9TEq1Un+WuuFJZL0Snt8UKY9 a0SI1yrDyksXDs7ur+u9xMxiZ2VZVI8Yc/SM+Hyjius0F+v0SkmWEIs+f mtxLUXZsjwzD9y1j89QMDOxPCF9/z3OJ1egCnGHm+EIXKO0OWIxXCv1l2 Q==; X-CSE-ConnectionGUID: 9X3MQI49RNaQU0a/yZOQ2g== X-CSE-MsgGUID: 1sfq+gvCSYGcRy6Pr7J7Zw== X-IronPort-AV: E=McAfee;i="6700,10204,11179"; a="23455194" X-IronPort-AV: E=Sophos;i="6.10,186,1719903600"; d="scan'208";a="23455194" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2024 14:27:06 -0700 X-CSE-ConnectionGUID: 4beK6VF2R0i5a3dChDlt9Q== X-CSE-MsgGUID: hxyTs7R9S0yeZGOx0Drw4Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,186,1719903600"; d="scan'208";a="68365406" Received: from jf5300-b11a338t.jf.intel.com ([10.242.51.6]) by fmviesa004.fm.intel.com with ESMTP; 29 Aug 2024 14:27:07 -0700 From: Kanchana P Sridhar To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, hannes@cmpxchg.org, yosryahmed@google.com, nphamcs@gmail.com, chengming.zhou@linux.dev, usamaarif642@gmail.com, ryan.roberts@arm.com, ying.huang@intel.com, 21cnbao@gmail.com, akpm@linux-foundation.org Cc: nanhai.zou@intel.com, wajdi.k.feghali@intel.com, vinodh.gopal@intel.com, kanchana.p.sridhar@intel.com Subject: [PATCH v6 1/3] mm: Define obj_cgroup_get() if CONFIG_MEMCG is not defined. Date: Thu, 29 Aug 2024 14:27:03 -0700 Message-Id: <20240829212705.6714-2-kanchana.p.sridhar@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20240829212705.6714-1-kanchana.p.sridhar@intel.com> References: <20240829212705.6714-1-kanchana.p.sridhar@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This resolves an issue with obj_cgroup_get() not being defined if CONFIG_MEMCG is not defined. Before this patch, we would see build errors if obj_cgroup_get() is called from code that is agnostic of CONFIG_MEMCG. The zswap_store() changes for mTHP in subsequent commits will require the use of obj_cgroup_get() in zswap code that falls into this category. Signed-off-by: Kanchana P Sridhar --- include/linux/memcontrol.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 34d2da05f2f1..15c2716f9aa3 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1282,6 +1282,10 @@ struct mem_cgroup *mem_cgroup_from_css(struct cgroup= _subsys_state *css) return NULL; } =20 +static inline void obj_cgroup_get(struct obj_cgroup *objcg) +{ +} + static inline void obj_cgroup_put(struct obj_cgroup *objcg) { } --=20 2.27.0