linux-kernel - Stable backport of cifs nlink workaround?

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Message-ID: <20140225152443.GA15552@sucs.org>
Date:	Tue, 25 Feb 2014 15:24:43 +0000
From:	Sitsofe Wheeler <sitsofe@...oo.com>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jim McDonough <jmcd@...ba.org>,
	Jeff Layton <jlayton@...hat.com>,
	David Disseldorp <ddiss@...ba.org>,
	Steve French <smfrench@...il.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Stable backport of cifs nlink workaround?

Hi,

Is there any chance that 74d290da476f672ad756634d12aa707375d3564d
([CIFS] Provide sane values for nlink) could be backported to the stable
3.2 kernel?

The reason I ask is because if you Using a Debain Wheezy box with a
3.2.41-2+deb7u2 kernel the following is problematic:

Mount a share using cifs from a Windows 2008 machine on to 2008share
Use Samba 3.6 to export the share as //linux/2008share
Using a Windows 2012 machine browse to \\linux\2008share

because the directories will appear to be files to the Windows 2012
machine.

On the Debian box doing
stat 2008share/dir
says
Device: 18h/24d	Inode: 844424932383132  Links: 1

Using a Fedora 20 box with a 3.13.3-201.fc20.x86_64 kernel to do the
same says:
Device: 27h/39d	Inode: 844424932383132  Links: 2

In https://bugzilla.kernel.org/show_bug.cgi?id=52791#c4 Jeff mentions
that if there were demand a RHEL 6 customer could ask for a backport so
it looks like the change is isolated enough to be put into stable...

https://bugzilla.samba.org/show_bug.cgi?id=9346 also talks about the
issue.

-- 
Sitsofe | http://sucs.org/~sits/
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