linux-kernel - Re: [-mm patch] lockdep: possible deadlock in sysfs

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Message-Id: <200701051348.19898.oliver@neukum.org>
Date:	Fri, 5 Jan 2007 13:48:19 +0100
From:	Oliver Neukum <oliver@...kum.org>
To:	Frederik Deweerdt <deweerdt@...e.fr>
Cc:	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	greg@...ah.com, maneesh@...ibm.com, oliver@...kum.name
Subject: Re: [-mm patch] lockdep: possible deadlock in sysfs

Am Freitag, 5. Januar 2007 13:16 schrieb Frederik Deweerdt:
> This is due to sysfs_hash_and_remove() holding dir->d_inode->i_mutex
> before calling sysfs_drop_dentry() which calls orphan_all_buffers()
> which in turn takes node->i_mutex.

This makes me wonder why it didn't deadlock during my tests.
I am investigating.

	Regards
		Oliver
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