From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760043Ab2CaOTp (ORCPT ); Sat, 31 Mar 2012 10:19:45 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:65054 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757472Ab2CaOTm convert rfc822-to-8bit (ORCPT ); Sat, 31 Mar 2012 10:19:42 -0400 From: Arkadiusz =?utf-8?q?Mi=C5=9Bkiewicz?= To: Vasiliy Kulikov Subject: Re: [PATCH] proc: reset mount options after the last procfs umount Date: Sat, 31 Mar 2012 16:19:38 +0200 User-Agent: KMail/1.13.7 (Linux/3.3.0-06972-ge22057c; KDE/4.8.1; x86_64; ; ) Cc: Andrew Morton , Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org, Alexey Dobriyan References: <201203220903.15360.a.miskiewicz@gmail.com> <20120326153738.aa728115.akpm@linux-foundation.org> <20120331135520.GB2845@albatros> In-Reply-To: <20120331135520.GB2845@albatros> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Message-Id: <201203311619.38921.a.miskiewicz@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Saturday 31 of March 2012, Vasiliy Kulikov wrote: > On Mon, Mar 26, 2012 at 15:37 -0700, Andrew Morton wrote: > > On Sun, 25 Mar 2012 18:23:16 -0400 > > > > Valdis.Kletnieks@vt.edu wrote: > > > Yes, it may be what the code actually *does*, but it certainly violates > > > the Principle of Least Surprise... > > > > It surprises me ;) I never noticed that before. > > > > It does seem pretty insane. I wonder how much downstream damage would > > result from fixing it. > > Resetting options on each mount is implemented in the following patch. "after all procs are umounted". For me such way is fine but still can suprise people. Anyway - what's the problem with implementing support for separate options for each mount point? > I wonder whether anybody will try to do such parallel type of things > in reality (IOW, is it OK to leave this race?) I mount multiple procs when using linux-vserver but these are currently not happening in parallel (but could be). -- Arkadiusz Miśkiewicz PLD/Linux Team arekm / maven.pl http://ftp.pld-linux.org/