Messages in this thread | | | Date | Wed, 18 Jul 2018 15:25:52 +0200 | From | Pablo Neira Ayuso <> | Subject | Re: linux-next: build failure after merge of the ida tree |
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On Wed, Jul 18, 2018 at 04:59:19AM -0700, Matthew Wilcox wrote: > On Wed, Jul 18, 2018 at 11:24:26AM +0200, Pablo Neira Ayuso wrote: > > I see, we have no more lockless API for IDA anymore :-(. In our case, > > we were already protected by the the nfnl_lock mutex, which it was > > sufficient to ensure non-concurrent access to IDA structures. > > You're actually the first user for whom this is true. For every other > user, the requirement to manage their own spinlock was a pain. > > > Unless I'm missing anything, the new API forces use to the spinlock > > call with disabled irq for each time we update something from the > > netfilter netlink interface, so that's a no-go for us. > > I can't believe that's a serious problem for you, though. You're calling > sscanf(), this can't possibly be a performance path.
It's not about performance, this is control plane code. This is disabling irqs, which is something we don't need.
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