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[23.128.96.32]) by mx.google.com with ESMTPS id w62-20020a638241000000b00573fdd098a7si3312567pgd.471.2023.09.15.07.46.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Sep 2023 07:46:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) client-ip=23.128.96.32; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=GsMXd6mZ; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by agentk.vger.email (Postfix) with ESMTP id 84675807602D; Fri, 15 Sep 2023 07:40:18 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at agentk.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235767AbjIOOkU (ORCPT + 99 others); Fri, 15 Sep 2023 10:40:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235633AbjIOOkT (ORCPT ); Fri, 15 Sep 2023 10:40:19 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A9AC1AC; Fri, 15 Sep 2023 07:40:15 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6453C433C9; Fri, 15 Sep 2023 14:40:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1694788814; bh=PvlOjbLkc3tgSHNCaVnS82ty1H0lvym1p0dyZTkOFDQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=GsMXd6mZ8RM6Ehv3+oeXSFdJBK4XfA1s5jG3qJW397E3aH+o329rZ/VtgcJhEI2Ek GIJfdrxXDV/D+2h214W5hbDliVTBm3yN1eUgvtUVVZ1/ZgLJyELtBnprCB74Mvp2bO Y9yAjyDUJYhLQ2LABIiRFS7SjQAloadGL5GvZIH6h3ow+QooG9ilUBP37mYSe/gnfx Oe0um8v+i1YG5HcXkyDRJwPVS8rwGOnzAUkEZB8JlS5KwPI8HWoWokIviZ30JYSJLI VjWkPZQ6+IEwE3hlmnfM8EB719A4Al+/b90kwWaliUnxciX021zodiQcb+zRxyFzBc v2OPDzI9ovPwA== Date: Fri, 15 Sep 2023 16:40:06 +0200 From: Christian Brauner To: Al Viro Cc: Jan Kara , Christoph Hellwig , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Fenghua Yu , Reinette Chatre , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Dennis Dalessandro , Tejun Heo , Trond Myklebust , Anna Schumaker , Kees Cook , Damien Le Moal , Naohiro Aota , Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org, linux-nfs@vger.kernel.org, linux-hardening@vger.kernel.org, cgroups@vger.kernel.org Subject: Re: [PATCH 03/19] fs: release anon dev_t in deactivate_locked_super Message-ID: <20230915-brust-gratis-156b7572a7c9@brauner> References: <20230913111013.77623-1-hch@lst.de> <20230913111013.77623-4-hch@lst.de> <20230913232712.GC800259@ZenIV> <20230914023705.GH800259@ZenIV> <20230914053843.GI800259@ZenIV> <20230914-munkeln-pelzmantel-3e3a761acb72@brauner> <20230914165805.GJ800259@ZenIV> <20230915-elstern-etatplanung-906c6780af19@brauner> <20230915-zweit-frech-0e06394208a3@brauner> <20230915142814.GL800259@ZenIV> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230915142814.GL800259@ZenIV> X-Spam-Status: No, score=-1.2 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Fri, 15 Sep 2023 07:40:18 -0700 (PDT) > Lifetime rules for fs-private parts of superblock are really private to Fine, I'll drop that. It's still correct that a filesystem needs to take care when it frees sb->s_fs_info. See the RCU fun you just encountered.