From owner-svn-src-head@freebsd.org Tue Jul 2 07:34:08 2019 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E12F715CA69E; Tue, 2 Jul 2019 07:34:07 +0000 (UTC) (envelope-from bjkfbsd@gmail.com) Received: from mail-ot1-x32f.google.com (mail-ot1-x32f.google.com [IPv6:2607:f8b0:4864:20::32f]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 6865E71E1E; Tue, 2 Jul 2019 07:34:07 +0000 (UTC) (envelope-from bjkfbsd@gmail.com) Received: by mail-ot1-x32f.google.com with SMTP id z23so16179380ote.13; Tue, 02 Jul 2019 00:34:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=ZPrmWnovr2Wf37LG1giFXFuso60nsgGCZklhXMd9OIo=; b=h0lvVMXFSKHDY9u4Q/K0VprNN8UI6m9SFs6uEJZyhiRuirouayUaRkxCKz1NSwlrgX gpnH2606TW+UzCr+mBGec67HF64xV6QjtPx2sFaqrjs/5sCKeu/fqyec1vsdVp7lIcDR nd3g83ijILVlo6wxR3MBsoVuzAc9bYrhKbLwelXpqadjzPTrCQwJ+cVUXh+8pquTlHbk T73l2rIItx3Yc9rgWpXNYEx8VtvZvJ3HguImXXR0/LLtcrA6a8uTMgfzPKSCzXMcBP/j mcnLFdR0aCUmg+07MEjdprUx8FB7F+Y2eiuY4pEPRfid3uCFj43Ht8FNMf48fIdnFMV1 dCiA== 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=ZPrmWnovr2Wf37LG1giFXFuso60nsgGCZklhXMd9OIo=; b=ig+eKwm6DCfv4aR7JVPa2LnaTVi0+t5RfcBeRa1SzPPouhtvMHqv+yktSbB8yz2h3t YSD/EQVhfQnzykpvtTb2M2SiiigNqTraUXAP7NTqMjcm4H+cAVOahJIKWxufrLngNicT y4ApOsr2felcm8GLXT4jBIXBe+1b43hlrcIwVG7hoWOJ0tUgmjfpGO86eMFFbYNprwqO xVRR2D1E2w1suAgt0naJtU7a9pUqRr0WuIYvS/OJvU3uVZzyPV9RVx4pxwY/RDZHHb7p rrTi900ddqoy2vRHJurhkQaSTp8jtu4IFNom3g334Y+jS7jr7u8RNZ5pxcy++H0Vv0Pj Pr5A== X-Gm-Message-State: APjAAAXJlBrYa3Ie575vuAz4pAK1Xxz4BZ+4lShlgVHNpghtqsAb9lm4 QCosN0HV0rjSNlG4JMFEBh6UgT8B/ug/5HKyEHyAJWKy X-Google-Smtp-Source: APXvYqwRa5vWbRrd4L6uzovmVfofeu/Ki7Cg6QBUAWFEiYNv8IfKaXy1i9mzI2yIEunCOGfmowX2g9tTdJm8BYdJpHE= X-Received: by 2002:a05:6830:6:: with SMTP id c6mr23792537otp.14.1562052846454; Tue, 02 Jul 2019 00:34:06 -0700 (PDT) MIME-Version: 1.0 References: <201907012322.x61NMRGS078268@repo.freebsd.org> In-Reply-To: <201907012322.x61NMRGS078268@repo.freebsd.org> From: Benjamin Kaduk Date: Tue, 2 Jul 2019 00:33:55 -0700 Message-ID: Subject: Re: svn commit: r349589 - in head: sbin/mount sys/sys sys/ufs/ffs To: Kirk McKusick Cc: src-committers , svn-src-all@freebsd.org, svn-src-head@freebsd.org X-Rspamd-Queue-Id: 6865E71E1E X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.97 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; REPLY(-4.00)[]; NEURAL_HAM_SHORT(-0.97)[-0.969,0] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Jul 2019 07:34:08 -0000 On Mon, Jul 1, 2019 at 8:33 PM Kirk McKusick via svn-src-all < svn-src-all@freebsd.org> wrote: > Author: mckusick > Date: Mon Jul 1 23:22:26 2019 > New Revision: 349589 > URL: https://svnweb.freebsd.org/changeset/base/349589 > > Log: > Add a new "untrusted" option to the mount command. Its purpose > is to notify the kernel that the file system is untrusted and it > should use more extensive checks on the file-system's metadata > before using it. This option is intended to be used when mounting > file systems from untrusted media such as USB memory sticks or other > externally-provided media. > > Are these additional extensive checks supposed to be computationally expensive in some regard, that we would not want to just always perform them? Thanks, Ben