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=-0.8 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY autolearn=unavailable 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 AD2C4C282E3 for ; Sun, 26 May 2019 19:06:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8E7D020815 for ; Sun, 26 May 2019 19:06:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726813AbfEZTGk (ORCPT ); Sun, 26 May 2019 15:06:40 -0400 Received: from mail02-md.ns.itscom.net ([175.177.155.112]:43453 "EHLO mail02-md.ns.itscom.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726163AbfEZTGk (ORCPT ); Sun, 26 May 2019 15:06:40 -0400 Received: from cmsa02-mds.s.noc.itscom.net (cmsa02-md.ns.itscom.net [175.177.0.92]) by mail02-md-outgoing.ns.itscom.net (Postfix) with ESMTP id 4F32DB0068B; Mon, 27 May 2019 04:06:39 +0900 (JST) Received: from jromail.nowhere ([219.110.50.76]) by cmsa-md with ESMTP id UyTfhOMNFRqYFUyTfhth0V; Mon, 27 May 2019 04:06:39 +0900 Received: from jro by jrobl id 1hUyTe-0003tD-JL ; Mon, 27 May 2019 04:06:38 +0900 From: "J. R. Okajima" Subject: Re: [PATCH] concrete /proc/mounts To: Al Viro Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kolyshkin@gmail.com In-Reply-To: <20190526120719.GQ17978@ZenIV.linux.org.uk> References: <17910.1558861894@jrobl> <20190526120719.GQ17978@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <14953.1558897598.1@jrobl> Date: Mon, 27 May 2019 04:06:38 +0900 Message-ID: <14954.1558897598@jrobl> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Al Viro: > Translation: let's generate the entire contents on the first read() and keep > it until the sucker's closed; that way userland wont' see anything changing > under it. Oh, wait... > > NAK. Do you mean that the change can hide other mountpoints which are kept unchanged before/after read()? J. R. Okajima