Received: by 2002:a25:e74b:0:0:0:0:0 with SMTP id e72csp1567807ybh; Thu, 16 Jul 2020 16:19:12 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxvFgn6hClh4UEpMcO/VMUKkCGvzxccgctwczHPfYPrag7qFIc8vgGj6cjMLQaM+4YkSRf8 X-Received: by 2002:a17:906:2799:: with SMTP id j25mr5975164ejc.466.1594941552659; Thu, 16 Jul 2020 16:19:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1594941552; cv=none; d=google.com; s=arc-20160816; b=0vFIK25GFeMTdcDhHp0LrDbToIVWoOoX1g6OOUnwAHG0018c8NXW3VAsfWD07nI3I1 UYSrtLJlPNRPV+jWrvBcHign8TvC57+0QdPyYTD6MTFJgx/IpdXNeQCSTXg+eSUc3LcT FghrH0oJuvtNi7cph0wmAMV2xrFqyLPqYMJZM/ZXlCmLaItr77iHzjltBQUUnebcX/wb nNilQHCs6O3XkfQC3ETNI24OMEqpvmk2UeD1f1r0D4rIIY9Cp7DpLwcY+cx2rPHK0E/Z JC+y0rs06tmsgIelZ6eCKtPZiFD051s6AfyZ0WgiB/8siKoRrP0pdS6MtqHEvGhI9KvM 4DmQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=QRd29gQhjNeUrKhFTnVxj7ogsWMnVarQNk5pq9cShUY=; b=J18EbuPTCJPbqHdNInoLNEmYWyQXAxmQx40Pc9H3wRh0uhisAE6KZ0BU4bKuI8McOL A1VnZNsXfVnhZbmSi7yS6tZ7MgpKkGRAVkDjhniWFtJ44zJLF4HWw59/wElONXcTzrGk fEzDQtrPSjmajvpg6KmIeDLbU1cpexpiiCy/1YUX4qWrkOqbB7rlVY2MpK7ESZJPGd7q CKQWdJ8Bg8RQhGpTTq5/leHeEFm7c79YzxtQyH2/sYOu1aTqYr6qDcgpQ/WzWuTtDh5f 5CsMJjv028PTdW2Op1FpQz1jgnoLmkHEkFTjI94AsGlF41SHAohB2XsHJtSZh1BfZg9T ZWVA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id pw19si3712273ejb.752.2020.07.16.16.18.49; Thu, 16 Jul 2020 16:19:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727810AbgGPXQl (ORCPT + 99 others); Thu, 16 Jul 2020 19:16:41 -0400 Received: from www262.sakura.ne.jp ([202.181.97.72]:54435 "EHLO www262.sakura.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726189AbgGPXQl (ORCPT ); Thu, 16 Jul 2020 19:16:41 -0400 Received: from fsav105.sakura.ne.jp (fsav105.sakura.ne.jp [27.133.134.232]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id 06GMR8YS077197; Fri, 17 Jul 2020 07:27:08 +0900 (JST) (envelope-from penguin-kernel@i-love.sakura.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav105.sakura.ne.jp (F-Secure/fsigk_smtp/550/fsav105.sakura.ne.jp); Fri, 17 Jul 2020 07:27:08 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/fsav105.sakura.ne.jp) Received: from [192.168.1.9] (M106072142033.v4.enabler.ne.jp [106.72.142.33]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id 06GMR8eS077194 (version=TLSv1.2 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 17 Jul 2020 07:27:08 +0900 (JST) (envelope-from penguin-kernel@i-love.sakura.ne.jp) Subject: Re: [PATCH v2] binder: Don't use mmput() from shrinker function. To: Christian Brauner Cc: Michal Hocko , Greg Kroah-Hartman , Arve Hjonnevag , Todd Kjos , Martijn Coenen , Joel Fernandes , Christian Brauner , syzbot , acme@kernel.org, alexander.shishkin@linux.intel.com, jolsa@redhat.com, linux-kernel@vger.kernel.org, mark.rutland@arm.com, mingo@redhat.com, namhyung@kernel.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com, "open list:ANDROID DRIVERS" , linux-mm References: <0000000000001fbbb605aa805c9b@google.com> <5ce3ee90-333e-638d-ac8c-cd6d7ab7aa3b@I-love.SAKURA.ne.jp> <20200716083506.GA20915@dhcp22.suse.cz> <36db7016-98d6-2c6b-110b-b2481fd480ac@i-love.sakura.ne.jp> <20200716135445.GN31089@dhcp22.suse.cz> <4ba9adb2-43f5-2de0-22de-f6075c1fab50@i-love.sakura.ne.jp> <20200716151756.GO31089@dhcp22.suse.cz> <20200716162931.g3delsp7qmfjup6x@wittgenstein> From: Tetsuo Handa Message-ID: <3407ed9e-9f88-6b13-ce05-7aecc25b77d4@i-love.sakura.ne.jp> Date: Fri, 17 Jul 2020 07:27:04 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200716162931.g3delsp7qmfjup6x@wittgenstein> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/07/17 1:29, Christian Brauner wrote: > Does this need a Cc: stable? Up to someone who applies this patch. I think this race is hard to hit.