linux-kernel - Re: [patch] inotify: fix deadlock found by lockdep

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Date:	Mon, 24 Jul 2006 21:14:00 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Arjan van de Ven <arjan@...ux.intel.com>
Cc:	Reuben Farrelly <reuben-lkml@...b.net>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	John McCutchan <john@...nmccutchan.com>,
	Andrew Morton <akpm@...l.org>, rml@...ell.com,
	viro@...iv.linux.org.uk
Subject: Re: [patch] inotify: fix deadlock found by lockdep


* Arjan van de Ven <arjan@...ux.intel.com> wrote:

> Subject: [patch] inotify: fix deadlock found by lockdep
> From: Arjan van de Ven <arjan@...ux.intel.com>
> 
> This is a real deadlock, a nice complex one:
> (warning: long explanation follows so that Andrew can have a complete
> patch description)
> 
> it's an ABCDA deadlock:
> 
> A iprune_mutex 
> B inode->inotify_mutex
> C ih->mutex
> D dev->ev_mutex

wow!

Acked-by: Ingo Molnar <mingo@...e.hu>

	Ingo
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