From: Glauber Costa <glommer@parallels.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: <linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Greg Thelen <gthelen@google.com>,
Serge Hallyn <serge.hallyn@canonical.com>,
Tejun Heo <tj@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH v2] fail dentry revalidation after namespace change
Date: Fri, 6 Jul 2012 13:44:27 +0400 [thread overview]
Message-ID: <4FF6B37B.4040005@parallels.com> (raw)
In-Reply-To: <87hatli62r.fsf@xmission.com>
On 07/06/2012 01:37 PM, Eric W. Biederman wrote:
> Glauber Costa <glommer@parallels.com> writes:
>
>> When we change the namespace tag of a sysfs entry, the associated dentry
>> is still kept around. readdir() will work correctly and not display the
>> old entries, but open() will still succeed, so will reads and writes.
>
> Note reads and writes of file handles open before the move should
> continue to work.
Well, yes. But do you see it as a big problem?
This can probably be fixed as well, but I foresee a big hackishness in
the way =p
next prev parent reply other threads:[~2012-07-06 9:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-06 9:09 [PATCH v2] fail dentry revalidation after namespace change Glauber Costa
2012-07-06 9:37 ` Eric W. Biederman
2012-07-06 9:44 ` Glauber Costa [this message]
2012-07-06 9:51 ` Eric W. Biederman
2012-07-09 23:13 ` Andrew Morton
2012-07-09 23:43 ` Serge Hallyn
2012-07-10 0:30 ` Eric W. Biederman
2012-07-10 0:47 ` Andrew Morton
2012-07-10 1:51 ` Eric W. Biederman
2012-07-10 2:15 ` Andrew Morton
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