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Mon, 23 May 2022 12:08:21 -0700 (PDT) Message-ID: <7bbf2792-355b-65a7-e239-879b3f928384@linaro.org> Date: Mon, 23 May 2022 12:08:20 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.0 Subject: Re: [PATCH] cgroup: don't queue css_release_work if one already pending Content-Language: en-US To: Tejun Heo Cc: =?UTF-8?Q?Michal_Koutn=c3=bd?= , Hillf Danton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzbot+e42ae441c3b10acf9e9d@syzkaller.appspotmail.com References: <20220412192459.227740-1-tadeusz.struk@linaro.org> <20220414164409.GA5404@blackbody.suse.cz> <20220422100400.GA29552@blackbody.suse.cz> <20220519112319.2455-1-hdanton@sina.com> <25fb057a-077f-b601-dcb7-130071c733db@linaro.org> <489592f6-b783-7bdb-2cc8-0c8e35ebc674@linaro.org> <20220520164255.GB17335@blackbody.suse.cz> <6ac66e89-2063-c5e8-df15-f77b76befc05@linaro.org> From: Tadeusz Struk In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: DDC9614001C X-Stat-Signature: fzohq8hws941hm5sipoo77epd9uoqm56 Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=linaro.org header.s=google header.b=ysjlmrGo; spf=pass (imf09.hostedemail.com: domain of tadeusz.struk@linaro.org designates 209.85.216.51 as permitted sender) smtp.mailfrom=tadeusz.struk@linaro.org; dmarc=pass (policy=none) header.from=linaro.org X-Rspam-User: X-HE-Tag: 1653332890-987675 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: On 5/23/22 12:02, Tejun Heo wrote: > Can you try holding an extra ref in the killed path? Yes, I can try that. Should that be with or without the extra work_struct? -- Thanks, Tadeusz