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

From: Josh Cartwright
Date: Thu Mar 29 2012 - 19:42:25 EST

On Thu, Mar 29, 2012 at 08:38:41AM -0700, Brian Norris wrote:
> On Thu, Feb 9, 2012 at 10:50 AM, Josh Cartwright <joshc@xxxxxxxxx> 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.

I'm certainly still interested in it, for what its worth :). We've had
no problems here for the month and a half its been in our tree.

I'll send out a rebased V2.



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