From owner-svn-src-head@FreeBSD.ORG  Wed Mar 28 21:55:57 2012
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 8D17C106564A;
	Wed, 28 Mar 2012 21:55:57 +0000 (UTC) (envelope-from marck@rinet.ru)
Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68])
	by mx1.freebsd.org (Postfix) with ESMTP id 0C66C8FC16;
	Wed, 28 Mar 2012 21:55:56 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
	by woozle.rinet.ru (8.14.5/8.14.5) with ESMTP id q2SLtn78042168;
	Thu, 29 Mar 2012 01:55:49 +0400 (MSK) (envelope-from marck@rinet.ru)
Date: Thu, 29 Mar 2012 01:55:49 +0400 (MSK)
From: Dmitry Morozovsky <marck@rinet.ru>
To: Kirk McKusick <mckusick@freebsd.org>
In-Reply-To: <201203282121.q2SLLJIu054695@svn.freebsd.org>
Message-ID: <alpine.BSF.2.00.1203290154390.39459@woozle.rinet.ru>
References: <201203282121.q2SLLJIu054695@svn.freebsd.org>
User-Agent: Alpine 2.00 (BSF 1167 2008-08-23)
X-NCC-RegID: ru.rinet
X-OpenPGP-Key-ID: 6B691B03
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7
	(woozle.rinet.ru [0.0.0.0]); Thu, 29 Mar 2012 01:55:49 +0400 (MSK)
Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org
Subject: Re: svn commit: r233629 - head/sys/ufs/ffs
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 28 Mar 2012 21:55:57 -0000

Dear Kirk,

On Wed, 28 Mar 2012, Kirk McKusick wrote:

> Author: mckusick
> Date: Wed Mar 28 21:21:19 2012
> New Revision: 233629
> URL: http://svn.freebsd.org/changeset/base/233629
> 
> Log:
>   A refinement of change 232351 to avoid a race with a forcible unmount.
>   While we have a snapshot vnode unlocked to avoid a deadlock with another
>   inode in the same inode block being updated, the filesystem containing
>   it may be forcibly unmounted. When that happens the snapshot vnode is
>   revoked. We need to check for that condition and fail appropriately.

Thank you and Kostik very much!

How far we are from enabling snapshot of SU+J UFS back?

[snip]

-- 
Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck@FreeBSD.org ]
------------------------------------------------------------------------
*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
------------------------------------------------------------------------