Messages in this thread | | | Date | Thu, 16 Jul 2020 16:25:37 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH 1/1] rcu/tree: Drop the lock before entering to page allocator |
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On 2020-07-16 11:19:13 [+0200], Uladzislau Rezki wrote: > Sebastian, could you please confirm that if that patch that is in > question fixes it? > > It would be appreciated!
So that preempt disable should in terms any warnings. However I don't think that it is strictly needed and from scheduling point of view you forbid a CPU migration which might be good otherwise. Also if interrupts and everything is enabled then someone else might invoke kfree_rcu() from BH context for instance.
Sebastian
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