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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24B52C433FE for ; Fri, 25 Mar 2022 01:32:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244616AbiCYBdj (ORCPT ); Thu, 24 Mar 2022 21:33:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37252 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357360AbiCYBcW (ORCPT ); Thu, 24 Mar 2022 21:32:22 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 48EF0BD7C3 for ; Thu, 24 Mar 2022 18:30:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EFE4FB8272E for ; Fri, 25 Mar 2022 01:30:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85FCCC340ED; Fri, 25 Mar 2022 01:30:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1648171842; bh=9GoZWEcEHOk1Vm2oUpncFPXvlT6BWEz/6t8f8Xon8Gk=; h=Date:To:From:Subject:From; b=Wqm4vh72LmhqtxB1j7T86gSGjXx+49TwPazAvJwX/CmG6COxHlvUgSXvY/NuD2wtU L5AmKj1fNdNgQ8Pxz3R3+dzYBv3j1fhXtSnQCFxQSMed8ojJkjaPlZln1UW3Cyb/j1 r7gMMvkRoEtsSWgFgpXl5+D1cET59kuNnrM891lk= Date: Thu, 24 Mar 2022 18:30:41 -0700 To: mm-commits@vger.kernel.org, zhengqi.arch@bytedance.com, willy@infradead.org, vdavydov.dev@gmail.com, vbabka@suse.cz, tytso@mit.edu, trond.myklebust@hammerspace.com, shy828301@gmail.com, shakeelb@google.com, roman.gushchin@linux.dev, richard.weiyang@gmail.com, mhocko@kernel.org, kari.argillander@gmail.com, jaegeuk@kernel.org, hannes@cmpxchg.org, fam.zheng@bytedance.com, duanxiongchun@bytedance.com, david@fromorbit.com, chao@kernel.org, Anna.Schumaker@Netapp.com, alexs@kernel.org, songmuchun@bytedance.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged] mm-memcontrol-fix-cannot-alloc-the-maximum-memcg-id.patch removed from -mm tree Message-Id: <20220325013042.85FCCC340ED@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm: memcontrol: fix cannot alloc the maximum memcg ID has been removed from the -mm tree. Its filename was mm-memcontrol-fix-cannot-alloc-the-maximum-memcg-id.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Muchun Song Subject: mm: memcontrol: fix cannot alloc the maximum memcg ID The idr_alloc() does not include @max ID. So in the current implementation, the maximum memcg ID is 65534 instead of 65535. It seems a bug. So fix this. Link: https://lkml.kernel.org/r/20220228122126.37293-15-songmuchun@bytedance.com Signed-off-by: Muchun Song Cc: Alex Shi Cc: Anna Schumaker Cc: Chao Yu Cc: Dave Chinner Cc: Fam Zheng Cc: Jaegeuk Kim Cc: Johannes Weiner Cc: Kari Argillander Cc: Matthew Wilcox (Oracle) Cc: Michal Hocko Cc: Qi Zheng Cc: Roman Gushchin Cc: Shakeel Butt Cc: Theodore Ts'o Cc: Trond Myklebust Cc: Vladimir Davydov Cc: Vlastimil Babka Cc: Wei Yang Cc: Xiongchun Duan Cc: Yang Shi Signed-off-by: Andrew Morton --- mm/memcontrol.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/memcontrol.c~mm-memcontrol-fix-cannot-alloc-the-maximum-memcg-id +++ a/mm/memcontrol.c @@ -5088,8 +5088,7 @@ static struct mem_cgroup *mem_cgroup_all return ERR_PTR(error); memcg->id.id = idr_alloc(&mem_cgroup_idr, NULL, - 1, MEM_CGROUP_ID_MAX, - GFP_KERNEL); + 1, MEM_CGROUP_ID_MAX + 1, GFP_KERNEL); if (memcg->id.id < 0) { error = memcg->id.id; goto fail; _ Patches currently in -mm which might be from songmuchun@bytedance.com are