Messages in this thread | | | Date | Fri, 5 Nov 2021 17:58:03 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH] sched/fair: Prevent dead task groups from regaining cfs_rq's |
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On Fri, Nov 05, 2021 at 05:29:14PM +0100, Mathias Krause wrote: > > Looks like it needs to be the kfree_rcu() one in this case. I'll prepare > > a patch. > > Testing the below patch right now. Looking good so far. Will prepare a > proper patch later, if we all can agree that this covers all cases. > > But the basic idea is to defer the kfree()'s to after the next RCU GP, > which also means we need to free the tg object itself later. Slightly > ugly. :/
Can't we add an rcu_head to struct task_group and simply call_rcu() the thing with a free function?
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