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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 AB8BCC11D00 for ; Thu, 20 Feb 2020 23:02:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 82776207FD for ; Thu, 20 Feb 2020 23:02:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582239766; bh=TOgbi4H7jr3CTpsBJz1bxAgngam40J5kb7Ppjs26TvI=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=RDz7ou5cYLZZPHCPmDX5rYo6VQA/bhBpwYV0OI5KTDUs8+uqWq98LtXAmWOSyFjJR 1Fy/QZ5+e+QJ8763HEArlxKRa12EpuhKmwHkuLG+YoS4agJxNRtkr72yT/M1gmLsuv +ZQKgtzKLY6Huq6zbz3fY4aGa6RpeTbIAymL5ntE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727880AbgBTXCp (ORCPT ); Thu, 20 Feb 2020 18:02:45 -0500 Received: from mail-lf1-f65.google.com ([209.85.167.65]:39068 "EHLO mail-lf1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729150AbgBTXCn (ORCPT ); Thu, 20 Feb 2020 18:02:43 -0500 Received: by mail-lf1-f65.google.com with SMTP id t23so44115lfk.6 for ; Thu, 20 Feb 2020 15:02:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=8oe6NGrWHTfgph3/inQD25AzfwK01P8Rirv0Se4y4rY=; b=eERYNg5pIV17feq4MuZzbw+6+6UOz8wPDMox8sHvl6LW5lyeCJiNPLjaaiAnC6tgNr k4eFpoUVZrOY+nWuuaeOf69/y2kMFcR2Xyd4iQCdWpyjSB4kE6JLltV8O5wbI2adfQ2q gkwegZ8+VoH9h8WqrHWMh85pZ16PVGc+EW3II= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=8oe6NGrWHTfgph3/inQD25AzfwK01P8Rirv0Se4y4rY=; b=f6M409dZJoZe/IwB95kLYPE4Pa1893v3sh6Hhw2QFTD1UlCSDWQNRPY0m+yhZWIFy4 fCLCkjONMvbhoAAk/q6DYnoWa+8f1fB/UGtP8zrBkPkc7rW3wTJRYHE+Kol2nDvbXyCj /nk11e7VetUWM0hv/grS/C44cW76oC/xWFUKFjuYtSu7lAQdujjPW6tK78IuUfhbMC+b KNAVqzSy9U3KB6WeJQSwMzMmzuWFMBgjpsUesG1xwIbQBj7r9wJXNp4qRS+zGcFdySvs hONsjEu2FskS0LckMb9EtXVBCvukuheUVhXMEvzTn+JBLmuUeArkfRz8QZkb/wqeWItS fFyw== X-Gm-Message-State: APjAAAXEeJBU/nh0YN/YzcmcHUFDPZ7qH7fSNVOj4EM4pMCFdlIOnb/1 UrBLjXllAjXZ1g7aFWV6A4HJ+/fp2hY= X-Google-Smtp-Source: APXvYqwHQfGsqUUioRen2cClup7XkqgGUwNUTAVxWcjBC4dwf18Se5wALtbCGqWwZ4J3Ktd3YX0jog== X-Received: by 2002:a05:6512:467:: with SMTP id x7mr3139586lfd.177.1582239760223; Thu, 20 Feb 2020 15:02:40 -0800 (PST) Received: from mail-lj1-f179.google.com (mail-lj1-f179.google.com. [209.85.208.179]) by smtp.gmail.com with ESMTPSA id y8sm440473lji.56.2020.02.20.15.02.38 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2020 15:02:39 -0800 (PST) Received: by mail-lj1-f179.google.com with SMTP id h23so193096ljc.8 for ; Thu, 20 Feb 2020 15:02:38 -0800 (PST) X-Received: by 2002:a2e:97cc:: with SMTP id m12mr19768759ljj.241.1582239758414; Thu, 20 Feb 2020 15:02:38 -0800 (PST) MIME-Version: 1.0 References: <20200210150519.538333-8-gladkov.alexey@gmail.com> <87v9odlxbr.fsf@x220.int.ebiederm.org> <20200212144921.sykucj4mekcziicz@comp-core-i7-2640m-0182e6> <87tv3vkg1a.fsf@x220.int.ebiederm.org> <87v9obipk9.fsf@x220.int.ebiederm.org> <20200212200335.GO23230@ZenIV.linux.org.uk> <20200212203833.GQ23230@ZenIV.linux.org.uk> <20200212204124.GR23230@ZenIV.linux.org.uk> <87lfp7h422.fsf@x220.int.ebiederm.org> <87pnejf6fz.fsf@x220.int.ebiederm.org> <871rqpaswu.fsf_-_@x220.int.ebiederm.org> In-Reply-To: <871rqpaswu.fsf_-_@x220.int.ebiederm.org> From: Linus Torvalds Date: Thu, 20 Feb 2020 15:02:22 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 0/7] proc: Dentry flushing without proc_mnt To: "Eric W. Biederman" Cc: Al Viro , LKML , Kernel Hardening , Linux API , Linux FS Devel , Linux Security Module , Akinobu Mita , Alexey Dobriyan , Andrew Morton , Andy Lutomirski , Daniel Micay , Djalal Harouni , "Dmitry V . Levin" , Greg Kroah-Hartman , Ingo Molnar , "J . Bruce Fields" , Jeff Layton , Jonathan Corbet , Kees Cook , Oleg Nesterov , Solar Designer Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: On Thu, Feb 20, 2020 at 12:48 PM Eric W. Biederman wrote: > > Linus, does this approach look like something you can stand? A couple of worries, although one of them seem to have already been resolved by Al. I think the real gatekeeper should be Al in general. But other than the small comments I had, I think this might work just fine. Al? Linus