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

From: Oliver Neukum
Date: Fri Jan 05 2007 - 11:53:20 EST


Am Freitag, 5. Januar 2007 17:42 schrieb Frederik Deweerdt:
> On Fri, Jan 05, 2007 at 04:13:25PM +0100, Oliver Neukum wrote:
> > Am Freitag, 5. Januar 2007 13:16 schrieb Frederik Deweerdt:
> > > On Thu, Jan 04, 2007 at 10:02:00PM -0800, Andrew Morton wrote:
> > > >
> > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20-rc3/2.6.20-rc3-mm1/
> > > >
> > are you sure there's a code path that takes these locks in the reverse order?
> > I've looked through the code twice and not found any. It doesn't make much
> > sense to first lock the file and afterwards the directory.
> You're right, an annotation should be enough, what do you think?

I agree.

Regards
Oliver
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