[Ocfs2-devel] [PATCH] ocfs2: fix __ocfs2_cluster_lock() dead lock

[Wengang Wang]

On 10-01-12 23:57, Joel Becker wrote:
> On Wed, Jan 13, 2010 at 11:20:49AM +0800, Wengang Wang wrote:
> > before update_holders, the lock could be DCed(since no BUSY flag set by
> > here).
> > 
> > and even after update_holders, the lock could be DCed too.
> > 
> > so that we get ocfs2_cluster_lock()(with holders increased) returned sucessfully
> > but actually we don't hold the dlm lock. --thus more than one node is
> > considering that they have the (EX) lock.
> 
> 	You make a good point.  I don't like the solution you propose,
> though.  Another flag that's almost the same?  Eww!  There's got to be a
> better way.
cool! expecting your patch...

regards,
wengang.