Messages in this thread | | | Date | Tue, 30 Sep 2008 09:09:23 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] Markers : fix reentrancy |
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* Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> wrote:
> Lai Jiangshan <laijs@cn.fujitsu.com> wrote : > > marker_synchronize_unregister must be called _also_ between unregistration > > and destruction the data that unregistration-ed probes need to make sure > > there is no caller executing a probe when it's data is destroyed. > > > > Ah, you're right. I looked again through your patch description and I > think using a : > > > if (entry->rcu_pending) > rcu_barrier_sched(); > > After each time the markers_mutex is taken would keep the fast batch > registration/unregistration and fix the reentrancy problem. The > following patch should address the problem.
could you please send a delta patch against tip/master? Lai's patch is already applied and is tested. Thanks,
Ingo
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