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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=ham 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 60235C43387 for ; Wed, 19 Dec 2018 07:19:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1A85E21841 for ; Wed, 19 Dec 2018 07:19:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="aH+dHuuC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725290AbeLSHTQ (ORCPT ); Wed, 19 Dec 2018 02:19:16 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:37090 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727159AbeLSHTQ (ORCPT ); Wed, 19 Dec 2018 02:19:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=evqe5dPHDIt+SHYPo3T6MulYSyrCpjE82y/Hm+ivgNI=; b=aH+dHuuCtnfTgHx5FCXFTmdoc ZsoHqEK1stmdr1SvDj+HeA6rvliXeUp1qkSbM2vjXUv7IcItpOTNY66/VayMovSOznP7KiTHt+AKY EW1hEmKH0+oVoMuAjQV3q81zVW1ShFrPenvg6/lpXMclEwKacW/xClpgLrezRvN46PJw4s0arrjrM HCZVnho39z5ONFgZpagvPR0hoj8gp/aVi+Ng078gT3nmfjiSFKmI0oe0xXrLo5bh+cGpOH052AoEz mHPaPmnFuVB3WUIyE30D3/rRQr0ET6+ve4Oks3rKB7rc4061ONG9cfyupcWfoWlfq3HKuSe2Qkegy vj4VLiyuQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1gZW8Q-0004v9-7e; Wed, 19 Dec 2018 07:19:14 +0000 Date: Tue, 18 Dec 2018 23:19:14 -0800 From: Christoph Hellwig To: Linus Torvalds Cc: Christoph Hellwig , "Darrick J. Wong" , ebiggers@kernel.org, linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, "Theodore Y . Ts'o" , Jaegeuk Kim , Victor Hsieh , Chandan Rajendra Subject: Re: [PATCH v2 01/12] fs-verity: add a documentation file Message-ID: <20181219071914.GA18852@infradead.org> References: <20181101225230.88058-1-ebiggers@kernel.org> <20181101225230.88058-2-ebiggers@kernel.org> <20181212091406.GA31723@infradead.org> <20181212202609.GA193967@gmail.com> <20181213202249.GA3797@infradead.org> <20181214044802.GA681@sol.localdomain> <20181217200039.GD8111@magnolia> <20181219071149.GB2628@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.2 (2017-12-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org On Tue, Dec 18, 2018 at 11:16:08PM -0800, Linus Torvalds wrote: > On Tue, Dec 18, 2018, 23:11 Christoph Hellwig > > > > I think the fd would have to be on the same fs for this interface to > > make sense. But it could be an O_TMPFILE one. And given that ext4 > > already supports a variant of swapext this interface should also work > > with the existing ext4 on disk format. > > > > Why is the merkle tree not just an xattr of the file? Because it is too large for our awkward xattrs interface..