Re: INFO: possible recursive locking detected: get_partial_node()on 3.2-rc1

[Pekka Enberg]

On Tue, 15 Nov 2011, Yong Zhang wrote:
> > Subject: slub: move discard_slab out of node lock
> >
> > Lockdep reports there is potential deadlock for slub node list_lock.
> > discard_slab() is called with the lock hold in unfreeze_partials(),
> > which could trigger a slab allocation, which could hold the lock again.
> >
> > discard_slab() doesn't need hold the lock actually, if the slab is
> > already removed from partial list.
> >
> > Reported-and-tested-by: Yong Zhang <yong.zhang0@xxxxxxxxx>
> > Reported-and-tested-by: Julie Sullivan <kernelmail.jms@xxxxxxxxx>
> > Signed-off-by: Shaohua Li <shaohua.li@xxxxxxxxx>
>
> Tested-by: Yong Zhang <yong.zhang0@xxxxxxxxx>

Applied, thanks!
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