Messages in this thread | | | From | Marc Zyngier <> | Subject | Re: [PATCH 00/15] arm/arm64: fix use of irq_find_mapping outside of legal RCU context | Date | Tue, 29 Jul 2014 15:28:25 +0100 |
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On Fri, Jul 11 2014 at 9:38:22 pm BST, Christopher Covington <cov@codeaurora.org> wrote: > Hi Mark, > > On 07/08/2014 09:10 AM, Marc Zyngier wrote: >> A number of irqchip drivers are directly calling irq_find_mapping, >> which may use a rcu_read_lock call when walking the radix tree. > > If this happens to be easy for you to determine: do direct callers of > irq_find_host such as irq_create_of_mapping have a similar problem with > irq_domain_mutex?
Definitely not from this problem. irq_find_host doesn't use RCU at all, so it shouldn't be an issue.
Thanks,
M. -- Jazz is not dead. It just smells funny.
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