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Message-ID: <alpine.LFD.2.02.1111152049210.1888@tux.localdomain> Date: Tue, 15 Nov 2011 20:49:35 +0200 (EET) From: Pekka Enberg <penberg@...nel.org> To: Yong Zhang <yong.zhang0@...il.com> cc: Shaohua Li <shaohua.li@...el.com>, Christoph Lameter <cl@...ux.com>, Julie Sullivan <kernelmail.jms@...il.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, Thomas Gleixner <tglx@...utronix.de>, "linux-mm@...ck.org" <linux-mm@...ck.org> Subject: Re: INFO: possible recursive locking detected: get_partial_node() on 3.2-rc1 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@...il.com> >> Reported-and-tested-by: Julie Sullivan <kernelmail.jms@...il.com> >> Signed-off-by: Shaohua Li <shaohua.li@...el.com> > > Tested-by: Yong Zhang <yong.zhang0@...il.com> Applied, thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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