From nobody Sat Sep 13 13:02:18 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F59AC61DA4 for ; Thu, 2 Feb 2023 04:33:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230526AbjBBEd0 (ORCPT ); Wed, 1 Feb 2023 23:33:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229955AbjBBEdX (ORCPT ); Wed, 1 Feb 2023 23:33:23 -0500 Received: from SHSQR01.spreadtrum.com (mx1.unisoc.com [222.66.158.135]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16338577D9 for ; Wed, 1 Feb 2023 20:33:19 -0800 (PST) Received: from SHSend.spreadtrum.com (bjmbx01.spreadtrum.com [10.0.64.7]) by SHSQR01.spreadtrum.com with ESMTP id 3124XE5W017671; Thu, 2 Feb 2023 12:33:14 +0800 (+08) (envelope-from zhaoyang.huang@unisoc.com) Received: from bj03382pcu.spreadtrum.com (10.0.74.65) by BJMBX01.spreadtrum.com (10.0.64.7) with Microsoft SMTP Server (TLS) id 15.0.1497.23; Thu, 2 Feb 2023 12:33:10 +0800 From: "zhaoyang.huang" To: Andrew Morton , Johannes Weiner , Peter Zijlstra , Michal Hocko , Roman Gushchin , Shakeel Butt , , , , Zhaoyang Huang , Subject: [PATCH] mm: introduce entrance for root_mem_cgroup's current Date: Thu, 2 Feb 2023 12:32:57 +0800 Message-ID: <1675312377-4782-1-git-send-email-zhaoyang.huang@unisoc.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.0.74.65] X-ClientProxiedBy: SHCAS01.spreadtrum.com (10.0.1.201) To BJMBX01.spreadtrum.com (10.0.64.7) X-MAIL: SHSQR01.spreadtrum.com 3124XE5W017671 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Zhaoyang Huang Introducing memory.root_current for the memory charges on root_mem_cgroup. Signed-off-by: Zhaoyang Huang --- mm/memcontrol.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ab457f0..158d4232 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -6681,6 +6681,11 @@ static ssize_t memory_reclaim(struct kernfs_open_fil= e *of, char *buf, =20 static struct cftype memory_files[] =3D { { + .name =3D "root_current", + .flags =3D CFTYPE_ONLY_ON_ROOT, + .read_u64 =3D memory_current_read, + }, + { .name =3D "current", .flags =3D CFTYPE_NOT_ON_ROOT, .read_u64 =3D memory_current_read, --=20 1.9.1