From nobody Fri Dec 19 10:42:19 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (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 8BB6516B72D for ; Wed, 28 Aug 2024 09:35:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724837723; cv=none; b=NUV+De5frFB/eZLC+aN7cyBA+XOmJKozUAPD1C2XaE3Pd+LdTvxQxnQCVpeh2nTfikU7Cw2jvu1kO4ND0cRihH0w+sOWNAuZKiqjJgWtR/GHPxK97lEBMp/OENBu8JWsIsMhBWjH2Kdje+r+CQIqmFEt1KjW2pP+4kRUpFhCv1k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724837723; c=relaxed/simple; bh=AeqSRk7TDyGPqnrVN5BCXf4W+HLcFRFHZnOza8fR2pk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=smZx8+xL9bpGhdqB5boDv1tlV6tJ5a6T4FXevYdfkgRD2Knb82I7Qqkmk4k0UNq1zkyiWc6eQ/AS56sSwB6F2KykMIQrGHUWFQeWaF4LBgBCwXe7L0T8WISyzP1GSQ9HU4ivvXdrl68082yYEkOw/5zAAcpk81SZKyvWs4zk54k= 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=mY91gBjX; arc=none smtp.client-ip=192.198.163.10 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="mY91gBjX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724837722; x=1756373722; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AeqSRk7TDyGPqnrVN5BCXf4W+HLcFRFHZnOza8fR2pk=; b=mY91gBjXwrYhmh8oWmdTKam610nXreXJuAZuVzlJ8WfOsdLSRWHiFuBB zV74INHQre2KpW9u9NvcQwNtKlef/KRlOuoku31JGwtmAOpuAtWW/mQJ4 lstnpaDehzv3Oh/6OCFkx9HqXtdkDSHzbZ2D8Zj/bZwr7YX+x4Qx7EyY0 JTBuE0O7fFTL4Ag0NvPpsXdLFgmkXaRjuVXpBh0AOLt2MdCfBvsjZDNFX Q2AL1YkwKdXiMbovLQ31Tw/5KB6UcvR7ikLLa965W46EwMjY3kI/r8+VV R/3uDS5z0vQa5cjnNpCNYKwZkB/96I0aG7Wbv+LCcxXt1J/rkXiaRk1jh g==; X-CSE-ConnectionGUID: N4zZ0IuLTEi4MoXjoFBFXQ== X-CSE-MsgGUID: R2eLHdPPQpahbKu3PBwcSA== X-IronPort-AV: E=McAfee;i="6700,10204,11177"; a="34763868" X-IronPort-AV: E=Sophos;i="6.10,182,1719903600"; d="scan'208";a="34763868" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Aug 2024 02:35:17 -0700 X-CSE-ConnectionGUID: pxwLaIv9QNKK2iVMFyiFEg== X-CSE-MsgGUID: ToDHsLGZRnyyoT3XdFWnww== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,182,1719903600"; d="scan'208";a="100678971" Received: from jf5300-b11a338t.jf.intel.com ([10.242.51.6]) by orviesa001.jf.intel.com with ESMTP; 28 Aug 2024 02:35:16 -0700 From: Kanchana P Sridhar To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, hannes@cmpxchg.org, yosryahmed@google.com, nphamcs@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 v5 1/3] mm: Define obj_cgroup_get() if CONFIG_MEMCG is not defined. Date: Wed, 28 Aug 2024 02:35:14 -0700 Message-Id: <20240828093516.30228-2-kanchana.p.sridhar@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20240828093516.30228-1-kanchana.p.sridhar@intel.com> References: <20240828093516.30228-1-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 fe05fdb92779..f693d254ab2a 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1281,6 +1281,10 @@ 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