From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2D89CA9EBB for ; Thu, 24 Oct 2019 20:29:16 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 75EEE21A4A for ; Thu, 24 Oct 2019 20:29:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="k+KQK1yV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 75EEE21A4A Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4C8526B000A; Thu, 24 Oct 2019 16:29:15 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 47B7E6B000C; Thu, 24 Oct 2019 16:29:15 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3661C6B000D; Thu, 24 Oct 2019 16:29:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0232.hostedemail.com [216.40.44.232]) by kanga.kvack.org (Postfix) with ESMTP id 12B2B6B000A for ; Thu, 24 Oct 2019 16:29:15 -0400 (EDT) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id 9F2256D94 for ; Thu, 24 Oct 2019 20:29:14 +0000 (UTC) X-FDA: 76079817828.16.show39_8add8fddd455e X-HE-Tag: show39_8add8fddd455e X-Filterd-Recvd-Size: 4118 Received: from mail-qt1-f201.google.com (mail-qt1-f201.google.com [209.85.160.201]) by imf05.hostedemail.com (Postfix) with ESMTP for ; Thu, 24 Oct 2019 20:29:14 +0000 (UTC) Received: by mail-qt1-f201.google.com with SMTP id c32so23869442qtb.14 for ; Thu, 24 Oct 2019 13:29:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=OTTgP/4rSMZq1YQryUiCckFA0Or1XPmBCQJjGhG/4Xo=; b=k+KQK1yVgr8ftCY21WnHwRy8s7u2DAecuwJppewUUySA6SAvk6D0TqMKRNnRAQIxAe koa/CpSG/tMqlcpF0TwQT3hvEfx3jFSpMcNrp8mXRKclZVYizJldrdCOqmRKc5wHnIMY WDceg4mifhX2pxAPYV++HQnr/zH4VGfVOaZQNy/dvkawRHLD4jRCpG5aIwT5NBxX5D7F SCJxRdQwJdpTwP0ZJUUedSNcOAMRAsRTUO9yko1ejSRBbrwa5zZteMMvixSReRioOhPB 1B70iyeoARY9KcnjukFGO5frbxtkbCJo0W/vyGeQNZSatoWWipT8f1b6/BTh9PQkxnlF LeTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=OTTgP/4rSMZq1YQryUiCckFA0Or1XPmBCQJjGhG/4Xo=; b=YWqq9wRzqylUJNDJICayBNwn4BheyBlZikkU7DsuWB/Zte3k22ewioqIp21SvDTsE2 lR0f+IvGgzuPotE7eYg4K2v7vNjp+l3BBF2bXqQG49XuzdpEtYlVvKxxzMbYSif60btA TbDiO+H4lXPn3U+VolAskQTa7BXbk7WGvWUitL3jpNp0qnjZQQK9EOrHMUAWOdilYSqR VWQ3r3ePStpSpsr2e1G9LgGbp0vlmE6WsgVHQDYhgBvV6cMEw28JUgysAk+Xsl0griZV RD1F3EttEn2HEq2MmJ/GMmt+JofISaRF0PJVULp3D3mehB8tpVNCnljbNY0p2HrdtpHm th4A== X-Gm-Message-State: APjAAAVW+roXMEIy/6pOwwT07DlsnHYnW88s9KmKpmhyUR3C+jSiZOCG R1jQmCw99/VDVGRPgrfxQCNuaojFmM7KBwQ6iw== X-Google-Smtp-Source: APXvYqykmweDy/QLQPkGWizAYNIBL+BlX3Ygpu2mWSwRIj83jVjwajIZ8NVAcpVzBNG7dhIbfZW7dElSf1O2aNJ7vA== X-Received: by 2002:a05:6214:1427:: with SMTP id o7mr4095977qvx.83.1571948953537; Thu, 24 Oct 2019 13:29:13 -0700 (PDT) Date: Thu, 24 Oct 2019 13:28:52 -0700 In-Reply-To: <20191024202858.95342-1-almasrymina@google.com> Message-Id: <20191024202858.95342-3-almasrymina@google.com> Mime-Version: 1.0 References: <20191024202858.95342-1-almasrymina@google.com> X-Mailer: git-send-email 2.24.0.rc0.303.g954a862665-goog Subject: [PATCH v7 3/9] hugetlb_cgroup: add cgroup-v2 support From: Mina Almasry To: mike.kravetz@oracle.com Cc: shuah@kernel.org, almasrymina@google.com, rientjes@google.com, shakeelb@google.com, gthelen@google.com, akpm@linux-foundation.org, khalid.aziz@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, cgroups@vger.kernel.org, aneesh.kumar@linux.vnet.ibm.com, mkoutny@suse.com Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: --- mm/hugetlb_cgroup.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c index 854117513979b..ac1500205faf7 100644 --- a/mm/hugetlb_cgroup.c +++ b/mm/hugetlb_cgroup.c @@ -503,8 +503,13 @@ static void __init __hugetlb_cgroup_file_init(int idx) cft = &h->cgroup_files[HUGETLB_RES_NULL]; memset(cft, 0, sizeof(*cft)); - WARN_ON(cgroup_add_legacy_cftypes(&hugetlb_cgrp_subsys, - h->cgroup_files)); + if (cgroup_subsys_on_dfl(hugetlb_cgrp_subsys)) { + WARN_ON(cgroup_add_dfl_cftypes(&hugetlb_cgrp_subsys, + h->cgroup_files)); + } else { + WARN_ON(cgroup_add_legacy_cftypes(&hugetlb_cgrp_subsys, + h->cgroup_files)); + } } void __init hugetlb_cgroup_file_init(void) @@ -548,8 +553,14 @@ void hugetlb_cgroup_migrate(struct page *oldhpage, struct page *newhpage) return; } +static struct cftype hugetlb_files[] = { + {} /* terminate */ +}; + struct cgroup_subsys hugetlb_cgrp_subsys = { .css_alloc = hugetlb_cgroup_css_alloc, .css_offline = hugetlb_cgroup_css_offline, .css_free = hugetlb_cgroup_css_free, + .dfl_cftypes = hugetlb_files, + .legacy_cftypes = hugetlb_files, }; -- 2.24.0.rc0.303.g954a862665-goog