linux-kernel - Re: [PATCH] jffs2: Fix lock acquisition order bug in gc path

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Date:	Thu, 29 Mar 2012 08:38:41 -0700
From:	Brian Norris <computersforpeace@...il.com>
To:	Josh Cartwright <joshc@...ux.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Artem Bityutskiy <dedekind1@...il.com>
Subject: Re: [PATCH] jffs2: Fix lock acquisition order bug in gc path

On Thu, Feb 9, 2012 at 10:50 AM, Josh Cartwright <joshc@...ux.com> wrote:
> The locking policy is such that the erase_complete_block spinlock is
> nested within the alloc_sem mutex.  This fixes a case in which the
> acquisition order was erroneously reversed.  This issue was caught by
> the following lockdep splat:

(Bump.) Anybody interested in this patch? It seemed sane to me, and I
had it sitting in my inbox. It does need a trivial rebase, BTW.

Brian
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