Messages in this thread | | | Date | Tue, 26 Jan 2016 17:41:20 +0100 | From | Christoph Hellwig <> | Subject | Re: regression 4.4: deadlock in with cgroup percpu_rwsem |
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On Tue, Jan 26, 2016 at 10:28:46AM -0500, Tejun Heo wrote: > Hmmm... why do you need to call percpu_ref_exit() from process > context? All it does is freeing the percpu counter and resetting the > state, both of which can be done from any context.
I checked and that's true indeed. You cought me doing cargo cult programming as the callers I looked at already do this.
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