linux-kernel - Re: Union mount and lockdep design issues

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Message-ID: <18169.1310605058@redhat.com>
Date:	Thu, 14 Jul 2011 01:57:38 +0100
From:	David Howells <dhowells@...hat.com>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	dhowells@...hat.com, Michal Suchanek <hramrach@...trum.cz>,
	Ian Kent <ikent@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ric Wheeler <rwheeler@...hat.com>,
	Alexander Viro <aviro@...hat.com>,
	Christoph Hellwig <hch@...radead.org>,
	Ingo Molnar <mingo@...e.hu>, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jeff Moyer <jmoyer@...hat.com>
Subject: Re: Union mount and lockdep design issues

Miklos Szeredi <miklos@...redi.hu> wrote:

> Normally overlayfs would be immune to this, since lower/upper are
> different filesystem types.  But overlayfs-over-overlayfs would see the
> same lockdep warnings, right?

Yes.

David
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